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authorgabime <gmelman1@gmail.com>2016-07-15 18:35:43 +0300
committergabime <gmelman1@gmail.com>2016-07-15 18:35:43 +0300
commitf5bde237dda771f41e876ef7c7affc51db9c58f6 (patch)
tree248828dd78a06b167acc1827975b8efc5b8b58e6
parent842e5236e4022db7670163bde75444098adab689 (diff)
Updated fmt lib to version 0d5ef5c2a66026409b0cfbafa1d2f46cdc5aa4d0
Diffstat
-rw-r--r--include/spdlog/details/format.cc1066
-rw-r--r--include/spdlog/details/format.h4500
-rw-r--r--include/spdlog/details/log_msg.h2
-rw-r--r--include/spdlog/details/pattern_formatter_impl.h2
-rw-r--r--include/spdlog/fmt/format.cc559
-rw-r--r--include/spdlog/fmt/format.h4369
-rw-r--r--include/spdlog/sinks/file_sinks.h2
7 files changed, 4931 insertions, 5569 deletions
diff --git a/include/spdlog/details/format.cc b/include/spdlog/details/format.cc
deleted file mode 100644
index cd246e4e..00000000
--- a/include/spdlog/details/format.cc
+++ /dev/null
@@ -1,1066 +0,0 @@
-/*
-Formatting library for C++
-
-Copyright (c) 2012 - 2015, Victor Zverovich
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright notice,
-this list of conditions and the following disclaimer in the documentation
-and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#include "format.h"
-
-#include <string.h>
-
-#include <cctype>
-#include <cerrno>
-#include <climits>
-#include <cmath>
-#include <cstdarg>
-#include <cstddef> // for std::ptrdiff_t
-
-#if defined(_WIN32) && defined(__MINGW32__)
-# include <cstring>
-#endif
-
-#if FMT_USE_WINDOWS_H
-# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX)
-# include <windows.h>
-# else
-# define NOMINMAX
-# include <windows.h>
-# undef NOMINMAX
-# endif
-#endif
-
-using fmt::internal::Arg;
-
-#if FMT_EXCEPTIONS
-# define FMT_TRY try
-# define FMT_CATCH(x) catch (x)
-#else
-# define FMT_TRY if (true)
-# define FMT_CATCH(x) if (false)
-#endif
-
-#ifdef FMT_HEADER_ONLY
-# define FMT_FUNC inline
-#else
-# define FMT_FUNC
-#endif
-
-#ifdef _MSC_VER
-# pragma warning(push)
-# pragma warning(disable: 4127) // conditional expression is constant
-# pragma warning(disable: 4702) // unreachable code
-// Disable deprecation warning for strerror. The latter is not called but
-// MSVC fails to detect it.
-# pragma warning(disable: 4996)
-#endif
-
-// Dummy implementations of strerror_r and strerror_s called if corresponding
-// system functions are not available.
-static inline fmt::internal::Null<> strerror_r(int, char *, ...)
-{
- return fmt::internal::Null<>();
-}
-static inline fmt::internal::Null<> strerror_s(char *, std::size_t, ...)
-{
- return fmt::internal::Null<>();
-}
-
-namespace fmt {
- namespace {
-
-#ifndef _MSC_VER
-# define FMT_SNPRINTF snprintf
-#else // _MSC_VER
- inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...)
- {
- va_list args;
- va_start(args, format);
- int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args);
- va_end(args);
- return result;
- }
-# define FMT_SNPRINTF fmt_snprintf
-#endif // _MSC_VER
-
-#if defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
-# define FMT_SWPRINTF snwprintf
-#else
-# define FMT_SWPRINTF swprintf
-#endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
-
- // Checks if a value fits in int - used to avoid warnings about comparing
- // signed and unsigned integers.
- template <bool IsSigned>
- struct IntChecker
- {
- template <typename T>
- static bool fits_in_int(T value)
- {
- unsigned max = INT_MAX;
- return value <= max;
- }
- static bool fits_in_int(bool)
- {
- return true;
- }
- };
-
- template <>
- struct IntChecker<true>
- {
- template <typename T>
- static bool fits_in_int(T value)
- {
- return value >= INT_MIN && value <= INT_MAX;
- }
- static bool fits_in_int(int)
- {
- return true;
- }
- };
-
- const char RESET_COLOR[] = "\x1b[0m";
-
- typedef void(*FormatFunc)(fmt::Writer &, int, fmt::StringRef);
-
- // Portable thread-safe version of strerror.
- // Sets buffer to point to a string describing the error code.
- // This can be either a pointer to a string stored in buffer,
- // or a pointer to some static immutable string.
- // Returns one of the following values:
- // 0 - success
- // ERANGE - buffer is not large enough to store the error message
- // other - failure
- // Buffer should be at least of size 1.
- int safe_strerror(
- int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT
- {
- FMT_ASSERT(buffer != 0 && buffer_size != 0, "invalid buffer");
-
- class StrError
- {
- private:
- int error_code_;
- char *&buffer_;
- std::size_t buffer_size_;
-
- // A noop assignment operator to avoid bogus warnings.
- void operator=(const StrError &)
- {}
-
- // Handle the result of XSI-compliant version of strerror_r.
- int handle(int result)
- {
- // glibc versions before 2.13 return result in errno.
- return result == -1 ? errno : result;
- }
-
- // Handle the result of GNU-specific version of strerror_r.
- int handle(char *message)
- {
- // If the buffer is full then the message is probably truncated.
- if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
- return ERANGE;
- buffer_ = message;
- return 0;
- }
-
- // Handle the case when strerror_r is not available.
- int handle(fmt::internal::Null<>)
- {
- return fallback(strerror_s(buffer_, buffer_size_, error_code_));
- }
-
- // Fallback to strerror_s when strerror_r is not available.
- int fallback(int result)
- {
- // If the buffer is full then the message is probably truncated.
- return result == 0 && strlen(buffer_) == buffer_size_ - 1 ?
- ERANGE : result;
- }
-
- // Fallback to strerror if strerror_r and strerror_s are not available.
- int fallback(fmt::internal::Null<>)
- {
- errno = 0;
- buffer_ = strerror(error_code_);
- return errno;
- }
-
- public:
- StrError(int err_code, char *&buf, std::size_t buf_size)
- : error_code_(err_code), buffer_(buf), buffer_size_(buf_size)
- {}
-
- int run()
- {
- strerror_r(0, 0, ""); // Suppress a warning about unused strerror_r.
- return handle(strerror_r(error_code_, buffer_, buffer_size_));
- }
- };
- return StrError(error_code, buffer, buffer_size).run();
- }
-
- void format_error_code(fmt::Writer &out, int error_code,
- fmt::StringRef message) FMT_NOEXCEPT
- {
- // Report error code making sure that the output fits into
- // INLINE_BUFFER_SIZE to avoid dynamic memory allocation and potential
- // bad_alloc.
- out.clear();
- static const char SEP[] = ": ";
- static const char ERROR_STR[] = "error ";
- // Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
- std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
- typedef fmt::internal::IntTraits<int>::MainType MainType;
- MainType abs_value = static_cast<MainType>(error_code);
- if (internal::is_negative(error_code)) {
- abs_value = 0 - abs_value;
- ++error_code_size;
- }
- error_code_size += fmt::internal::count_digits(abs_value);
- if (message.size() <= fmt::internal::INLINE_BUFFER_SIZE - error_code_size)
- out << message << SEP;
- out << ERROR_STR << error_code;
- assert(out.size() <= fmt::internal::INLINE_BUFFER_SIZE);
- }
-
- void report_error(FormatFunc func,
- int error_code, fmt::StringRef message) FMT_NOEXCEPT
- {
- fmt::MemoryWriter full_message;
- func(full_message, error_code, message);
- // Use Writer::data instead of Writer::c_str to avoid potential memory
- // allocation.
- std::fwrite(full_message.data(), full_message.size(), 1, stderr);
- std::fputc('\n', stderr);
- }
-
- // IsZeroInt::visit(arg) returns true iff arg is a zero integer.
- class IsZeroInt: public fmt::internal::ArgVisitor<IsZeroInt, bool>
- {
- public:
- template <typename T>
- bool visit_any_int(T value)
- {
- return value == 0;
- }
- };
-
- // Checks if an argument is a valid printf width specifier and sets
- // left alignment if it is negative.
- class WidthHandler: public fmt::internal::ArgVisitor<WidthHandler, unsigned>
- {
- private:
- fmt::FormatSpec &spec_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(WidthHandler);
-
- public:
- explicit WidthHandler(fmt::FormatSpec &spec): spec_(spec)
- {}
-
- void report_unhandled_arg()
- {
- FMT_THROW(fmt::FormatError("width is not integer"));
- }
-
- template <typename T>
- unsigned visit_any_int(T value)
- {
- typedef typename fmt::internal::IntTraits<T>::MainType UnsignedType;
- UnsignedType width = static_cast<UnsignedType>(value);
- if (fmt::internal::is_negative(value)) {
- spec_.align_ = fmt::ALIGN_LEFT;
- width = 0 - width;
- }
- if (width > INT_MAX)
- FMT_THROW(fmt::FormatError("number is too big"));
- return static_cast<unsigned>(width);
- }
- };
-
- class PrecisionHandler:
- public fmt::internal::ArgVisitor<PrecisionHandler, int>
- {
- public:
- void report_unhandled_arg()
- {
- FMT_THROW(fmt::FormatError("precision is not integer"));
- }
-
- template <typename T>
- int visit_any_int(T value)
- {
- if (!IntChecker<std::numeric_limits<T>::is_signed>::fits_in_int(value))
- FMT_THROW(fmt::FormatError("number is too big"));
- return static_cast<int>(value);
- }
- };
-
- template <typename T, typename U>
- struct is_same
- {
- enum
- {
- value = 0
- };
- };
-
- template <typename T>
- struct is_same<T, T>
- {
- enum
- {
- value = 1
- };
- };
-
- // An argument visitor that converts an integer argument to T for printf,
- // if T is an integral type. If T is void, the argument is converted to
- // corresponding signed or unsigned type depending on the type specifier:
- // 'd' and 'i' - signed, other - unsigned)
- template <typename T = void>
- class ArgConverter: public fmt::internal::ArgVisitor<ArgConverter<T>, void>
- {
- private:
- fmt::internal::Arg &arg_;
- wchar_t type_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(ArgConverter);
-
- public:
- ArgConverter(fmt::internal::Arg &arg, wchar_t type)
- : arg_(arg), type_(type)
- {}
-
- void visit_bool(bool value)
- {
- if (type_ != 's')
- visit_any_int(value);
- }
-
- template <typename U>
- void visit_any_int(U value)
- {
- bool is_signed = type_ == 'd' || type_ == 'i';
- using fmt::internal::Arg;
- typedef typename fmt::internal::Conditional<
- is_same<T, void>::value, U, T>::type TargetType;
- if (sizeof(TargetType) <= sizeof(int)) {
- // Extra casts are used to silence warnings.
- if (is_signed) {
- arg_.type = Arg::INT;
- arg_.int_value = static_cast<int>(static_cast<TargetType>(value));
- }
- else {
- arg_.type = Arg::UINT;
- typedef typename fmt::internal::MakeUnsigned<TargetType>::Type Unsigned;
- arg_.uint_value = static_cast<unsigned>(static_cast<Unsigned>(value));
- }
- }
- else {
- if (is_signed) {
- arg_.type = Arg::LONG_LONG;
- // glibc's printf doesn't sign extend arguments of smaller types:
- // std::printf("%lld", -42); // prints "4294967254"
- // but we don't have to do the same because it's a UB.
- arg_.long_long_value = static_cast<fmt::LongLong>(value);
- }
- else {
- arg_.type = Arg::ULONG_LONG;
- arg_.ulong_long_value =
- static_cast<typename fmt::internal::MakeUnsigned<U>::Type>(value);
- }
- }
- }
- };
-
- // Converts an integer argument to char for printf.
- class CharConverter: public fmt::internal::ArgVisitor<CharConverter, void>
- {
- private:
- fmt::internal::Arg &arg_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(CharConverter);
-
- public:
- explicit CharConverter(fmt::internal::Arg &arg): arg_(arg)
- {}
-
- template <typename T>
- void visit_any_int(T value)
- {
- arg_.type = Arg::CHAR;
- arg_.int_value = static_cast<char>(value);
- }
- };
-
- // Write the content of w to os.
- void write(std::ostream &os, fmt::Writer &w)
- {
- const char *data = w.data();
- typedef internal::MakeUnsigned<std::streamsize>::Type UnsignedStreamSize;
- UnsignedStreamSize size = w.size();
- UnsignedStreamSize max_size =
- internal::to_unsigned((std::numeric_limits<std::streamsize>::max)());
- do {
- UnsignedStreamSize n = size <= max_size ? size : max_size;
- os.write(data, static_cast<std::streamsize>(n));
- data += n;
- size -= n;
- } while (size != 0);
- }
- } // namespace
-
- namespace internal {
-
- template <typename Char>
- class PrintfArgFormatter:
- public ArgFormatterBase<PrintfArgFormatter<Char>, Char>
- {
-
- void write_null_pointer()
- {
- this->spec().type_ = 0;
- this->write("(nil)");
- }
-
- typedef ArgFormatterBase<PrintfArgFormatter<Char>, Char> Base;
-
- public:
- PrintfArgFormatter(BasicWriter<Char> &w, FormatSpec &s)
- : ArgFormatterBase<PrintfArgFormatter<Char>, Char>(w, s)
- {}
-
- void visit_bool(bool value)
- {
- FormatSpec &fmt_spec = this->spec();
- if (fmt_spec.type_ != 's')
- return this->visit_any_int(value);
- fmt_spec.type_ = 0;
- this->write(value);
- }
-
- void visit_char(int value)
- {
- const FormatSpec &fmt_spec = this->spec();
- BasicWriter<Char> &w = this->writer();
- if (fmt_spec.type_ && fmt_spec.type_ != 'c')
- w.write_int(value, fmt_spec);
- typedef typename BasicWriter<Char>::CharPtr CharPtr;
- CharPtr out = CharPtr();
- if (fmt_spec.width_ > 1) {
- Char fill = ' ';
- out = w.grow_buffer(fmt_spec.width_);
- if (fmt_spec.align_ != ALIGN_LEFT) {
- std::fill_n(out, fmt_spec.width_ - 1, fill);
- out += fmt_spec.width_ - 1;
- }
- else {
- std::fill_n(out + 1, fmt_spec.width_ - 1, fill);
- }
- }
- else {
- out = w.grow_buffer(1);
- }
- *out = static_cast<Char>(value);
- }
-
- void visit_cstring(const char *value)
- {
- if (value)
- Base::visit_cstring(value);
- else if (this->spec().type_ == 'p')
- write_null_pointer();
- else
- this->write("(null)");
- }
-
- void visit_pointer(const void *value)
- {
- if (value)
- return Base::visit_pointer(value);
- this->spec().type_ = 0;
- write_null_pointer();
- }
-
- void visit_custom(Arg::CustomValue c)
- {
- BasicFormatter<Char> formatter(ArgList(), this->writer());
- const Char format_str[] = { '}', 0 };
- const Char *format = format_str;
- c.format(&formatter, c.value, &format);
- }
- };
- } // namespace internal
-} // namespace fmt
-
-FMT_FUNC void fmt::SystemError::init(
- int err_code, CStringRef format_str, ArgList args)
-{
- error_code_ = err_code;
- MemoryWriter w;
- internal::format_system_error(w, err_code, format(format_str, args));
- std::runtime_error &base = *this;
- base = std::runtime_error(w.str());
-}
-
-template <typename T>
-int fmt::internal::CharTraits<char>::format_float(
- char *buffer, std::size_t size, const char *format,
- unsigned width, int precision, T value)
-{
- if (width == 0) {
- return precision < 0 ?
- FMT_SNPRINTF(buffer, size, format, value) :
- FMT_SNPRINTF(buffer, size, format, precision, value);
- }
- return precision < 0 ?
- FMT_SNPRINTF(buffer, size, format, width, value) :
- FMT_SNPRINTF(buffer, size, format, width, precision, value);
-}
-
-template <typename T>
-int fmt::internal::CharTraits<wchar_t>::format_float(
- wchar_t *buffer, std::size_t size, const wchar_t *format,
- unsigned width, int precision, T value)
-{
- if (width == 0) {
- return precision < 0 ?
- FMT_SWPRINTF(buffer, size, format, value) :
- FMT_SWPRINTF(buffer, size, format, precision, value);
- }
- return precision < 0 ?
- FMT_SWPRINTF(buffer, size, format, width, value) :
- FMT_SWPRINTF(buffer, size, format, width, precision, value);
-}
-
-template <typename T>
-const char fmt::internal::BasicData<T>::DIGITS[] =
-"0001020304050607080910111213141516171819"
-"2021222324252627282930313233343536373839"
-"4041424344454647484950515253545556575859"
-"6061626364656667686970717273747576777879"
-"8081828384858687888990919293949596979899";
-
-#define FMT_POWERS_OF_10(factor) \
- factor * 10, \
- factor * 100, \
- factor * 1000, \
- factor * 10000, \
- factor * 100000, \
- factor * 1000000, \
- factor * 10000000, \
- factor * 100000000, \
- factor * 1000000000
-
-template <typename T>
-const uint32_t fmt::internal::BasicData<T>::POWERS_OF_10_32[] = {
- 0, FMT_POWERS_OF_10(1)
-};
-
-template <typename T>
-const uint64_t fmt::internal::BasicData<T>::POWERS_OF_10_64[] = {
- 0,
- FMT_POWERS_OF_10(1),
- FMT_POWERS_OF_10(fmt::ULongLong(1000000000)),
- // Multiply several constants instead of using a single long long constant
- // to avoid warnings about C++98 not supporting long long.
- fmt::ULongLong(1000000000) * fmt::ULongLong(1000000000) * 10
-};
-
-FMT_FUNC void fmt::internal::report_unknown_type(char code, const char *type)
-{
- (void)type;
- if (std::isprint(static_cast<unsigned char>(code))) {
- FMT_THROW(fmt::FormatError(
- fmt::format("unknown format code '{}' for {}", code, type)));
- }
- FMT_THROW(fmt::FormatError(
- fmt::format("unknown format code '\\x{:02x}' for {}",
- static_cast<unsigned>(code), type)));
-}
-
-#if FMT_USE_WINDOWS_H
-
-FMT_FUNC fmt::internal::UTF8ToUTF16::UTF8ToUTF16(fmt::StringRef s)
-{
- static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
- if (s.size() > INT_MAX)
- FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG));
- int s_size = static_cast<int>(s.size());
- int length = MultiByteToWideChar(
- CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, 0, 0);
- if (length == 0)
- FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
- buffer_.resize(length + 1);
- length = MultiByteToWideChar(
- CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length);
- if (length == 0)
- FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
- buffer_[length] = 0;
-}
-
-FMT_FUNC fmt::internal::UTF16ToUTF8::UTF16ToUTF8(fmt::WStringRef s)
-{
- if (int error_code = convert(s)) {
- FMT_THROW(WindowsError(error_code,
- "cannot convert string from UTF-16 to UTF-8"));
- }
-}
-
-FMT_FUNC int fmt::internal::UTF16ToUTF8::convert(fmt::WStringRef s)
-{
- if (s.size() > INT_MAX)
- return ERROR_INVALID_PARAMETER;
- int s_size = static_cast<int>(s.size());
- int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, 0, 0, 0, 0);
- if (length == 0)
- return GetLastError();
- buffer_.resize(length + 1);
- length = WideCharToMultiByte(
- CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, 0, 0);
- if (length == 0)
- return GetLastError();
- buffer_[length] = 0;
- return 0;
-}
-
-FMT_FUNC void fmt::WindowsError::init(
- int err_code, CStringRef format_str, ArgList args)
-{
- error_code_ = err_code;
- MemoryWriter w;
- internal::format_windows_error(w, err_code, format(format_str, args));
- std::runtime_error &base = *this;
- base = std::runtime_error(w.str());
-}
-
-FMT_FUNC void fmt::internal::format_windows_error(
- fmt::Writer &out, int error_code,
- fmt::StringRef message) FMT_NOEXCEPT
-{
- FMT_TRY{
- MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer;
- buffer.resize(INLINE_BUFFER_SIZE);
- for (;;) {
- wchar_t *system_message = &buffer[0];
- int result = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
- 0, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
- system_message, static_cast<uint32_t>(buffer.size()), 0);
- if (result != 0) {
- UTF16ToUTF8 utf8_message;
- if (utf8_message.convert(system_message) == ERROR_SUCCESS) {
- out << message << ": " << utf8_message;
- return;
- }
- break;
- }
- if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
- break; // Can't get error message, report error code instead.
- buffer.resize(buffer.size() * 2);
- }
- } FMT_CATCH(...)
- {}
- fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32.
-}
-
-#endif // FMT_USE_WINDOWS_H
-
-FMT_FUNC void fmt::internal::format_system_error(
- fmt::Writer &out, int error_code,
- fmt::StringRef message) FMT_NOEXCEPT
-{
- FMT_TRY{
- MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer;
- buffer.resize(INLINE_BUFFER_SIZE);
- for (;;) {
- char *system_message = &buffer[0];
- int result = safe_strerror(error_code, system_message, buffer.size());
- if (result == 0) {
- out << message << ": " << system_message;
- return;
- }
- if (result != ERANGE)
- break; // Can't get error message, report error code instead.
- buffer.resize(buffer.size() * 2);
- }
- } FMT_CATCH(...)
- {}
- fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32.
-}
-
-template <typename Char>
-void fmt::internal::ArgMap<Char>::init(const ArgList &args)
-{
- if (!map_.empty())
- return;
- typedef internal::NamedArg<Char> NamedArg;
- const NamedArg *named_arg = 0;
- bool use_values =
- args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE;
- if (use_values) {
- for (unsigned i = 0;/*nothing*/; ++i) {
- internal::Arg::Type arg_type = args.type(i);
- switch (arg_type) {
- case internal::Arg::NONE:
- return;
- case internal::Arg::NAMED_ARG:
- named_arg = static_cast<const NamedArg*>(args.values_[i].pointer);
- map_.push_back(Pair(named_arg->name, *named_arg));
- break;
- default:
- /*nothing*/;
- }
- }
- return;
- }
- for (unsigned i = 0; i != ArgList::MAX_PACKED_ARGS; ++i) {
- internal::Arg::Type arg_type = args.type(i);
- if (arg_type == internal::Arg::NAMED_ARG) {
- named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
- map_.push_back(Pair(named_arg->name, *named_arg));
- }
- }
- for (unsigned i = ArgList::MAX_PACKED_ARGS;/*nothing*/; ++i) {
- switch (args.args_[i].type) {
- case internal::Arg::NONE:
- return;
- case internal::Arg::NAMED_ARG:
- named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
- map_.push_back(Pair(named_arg->name, *named_arg));
- break;
- default:
- /*nothing*/;
- }
- }
-}
-
-template <typename Char>
-void fmt::internal::FixedBuffer<Char>::grow(std::size_t)
-{
- FMT_THROW(std::runtime_error("buffer overflow"));
-}
-
-FMT_FUNC Arg fmt::internal::FormatterBase::do_get_arg(
- unsigned arg_index, const char *&error)
-{
- Arg arg = args_[arg_index];
- switch (arg.type) {
- case Arg::NONE:
- error = "argument index out of range";
- break;
- case Arg::NAMED_ARG:
- arg = *static_cast<const internal::Arg*>(arg.pointer);
- break;
- default:
- /*nothing*/;
- }
- return arg;
-}
-
-template <typename Char>
-void fmt::internal::PrintfFormatter<Char>::parse_flags(
- FormatSpec &spec, const Char *&s)
-{
- for (;;) {
- switch (*s++) {
- case '-':
- spec.align_ = ALIGN_LEFT;
- break;
- case '+':
- spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
- break;
- case '0':
- spec.fill_ = '0';
- break;
- case ' ':
- spec.flags_ |= SIGN_FLAG;
- break;
- case '#':
- spec.flags_ |= HASH_FLAG;
- break;
- default:
- --s;
- return;
- }
- }
-}
-
-template <typename Char>
-Arg fmt::internal::PrintfFormatter<Char>::get_arg(
- const Char *s, unsigned arg_index)
-{
- (void)s;
- const char *error = 0;
- Arg arg = arg_index == UINT_MAX ?
- next_arg(error) : FormatterBase::get_arg(arg_index - 1, error);
- if (error)
- FMT_THROW(FormatError(!*s ? "invalid format string" : error));
- return arg;
-}
-
-template <typename Char>
-unsigned fmt::internal::PrintfFormatter<Char>::parse_header(
- const Char *&s, FormatSpec &spec)
-{
- unsigned arg_index = UINT_MAX;
- Char c = *s;
- if (c >= '0' && c <= '9') {
- // Parse an argument index (if followed by '$') or a width possibly
- // preceded with '0' flag(s).
- unsigned value = parse_nonnegative_int(s);
- if (*s == '$') { // value is an argument index
- ++s;
- arg_index = value;
- }
- else {
- if (c == '0')
- spec.fill_ = '0';
- if (value != 0) {
- // Nonzero value means that we parsed width and don't need to
- // parse it or flags again, so return now.
- spec.width_ = value;
- return arg_index;
- }
- }
- }
- parse_flags(spec, s);
- // Parse width.
- if (*s >= '0' && *s <= '9') {
- spec.width_ = parse_nonnegative_int(s);
- }
- else if (*s == '*') {
- ++s;
- spec.width_ = WidthHandler(spec).visit(get_arg(s));
- }
- return arg_index;
-}
-
-template <typename Char>
-void fmt::internal::PrintfFormatter<Char>::format(
- BasicWriter<Char> &writer, BasicCStringRef<Char> format_str)
-{
- const Char *start = format_str.c_str();
- const Char *s = start;
- while (*s) {
- Char c = *s++;
- if (c != '%') continue;
- if (*s == c) {
- write(writer, start, s);
- start = ++s;
- continue;
- }
- write(writer, start, s - 1);
-
- FormatSpec spec;
- spec.align_ = ALIGN_RIGHT;
-
- // Parse argument index, flags and width.
- unsigned arg_index = parse_header(s, spec);
-
- // Parse precision.
- if (*s == '.') {
- ++s;
- if ('0' <= *s && *s <= '9') {
- spec.precision_ = static_cast<int>(parse_nonnegative_int(s));
- }
- else if (*s == '*') {
- ++s;
- spec.precision_ = PrecisionHandler().visit(get_arg(s));
- }
- }
-
- Arg arg = get_arg(s, arg_index);
- if (spec.flag(HASH_FLAG) && IsZeroInt().visit(arg))
- spec.flags_ &= ~to_unsigned<int>(HASH_FLAG);
- if (spec.fill_ == '0') {
- if (arg.type <= Arg::LAST_NUMERIC_TYPE)
- spec.align_ = ALIGN_NUMERIC;
- else
- spec.fill_ = ' '; // Ignore '0' flag for non-numeric types.
- }
-
- // Parse length and convert the argument to the required type.
- switch (*s++) {
- case 'h':
- if (*s == 'h')
- ArgConverter<signed char>(arg, *++s).visit(arg);
- else
- ArgConverter<short>(arg, *s).visit(arg);
- break;
- case 'l':
- if (*s == 'l')
- ArgConverter<fmt::LongLong>(arg, *++s).visit(arg);
- else
- ArgConverter<long>(arg, *s).visit(arg);
- break;
- case 'j':
- ArgConverter<intmax_t>(arg, *s).visit(arg);
- break;
- case 'z':
- ArgConverter<std::size_t>(arg, *s).visit(arg);
- break;
- case 't':
- ArgConverter<std::ptrdiff_t>(arg, *s).visit(arg);
- break;
- case 'L':
- // printf produces garbage when 'L' is omitted for long double, no
- // need to do the same.
- break;
- default:
- --s;
- ArgConverter<void>(arg, *s).visit(arg);
- }
-
- // Parse type.
- if (!*s)
- FMT_THROW(FormatError("invalid format string"));
- spec.type_ = static_cast<char>(*s++);
- if (arg.type <= Arg::LAST_INTEGER_TYPE) {
- // Normalize type.
- switch (spec.type_) {
- case 'i': case 'u':
- spec.type_ = 'd';
- break;
- case 'c':
- // TODO: handle wchar_t
- CharConverter(arg).visit(arg);
- break;
- }
- }
-
- start = s;
-
- // Format argument.
- internal::PrintfArgFormatter<Char>(writer, spec).visit(arg);
- }
- write(writer, start, s);
-}
-
-FMT_FUNC void fmt::report_system_error(
- int error_code, fmt::StringRef message) FMT_NOEXCEPT
-{
- // 'fmt::' is for bcc32.
- fmt::report_error(internal::format_system_error, error_code, message);
-}
-
-#if FMT_USE_WINDOWS_H
-FMT_FUNC void fmt::report_windows_error(
- int error_code, fmt::StringRef message) FMT_NOEXCEPT
-{
- // 'fmt::' is for bcc32.
- fmt::report_error(internal::format_windows_error, error_code, message);
-}
-#endif
-
-FMT_FUNC void fmt::print(std::FILE *f, CStringRef format_str, ArgList args)
-{
- MemoryWriter w;
- w.write(format_str, args);
- std::fwrite(w.data(), 1, w.size(), f);
-}
-
-FMT_FUNC void fmt::print(CStringRef format_str, ArgList args)
-{
- print(stdout, format_str, args);
-}
-
-FMT_FUNC void fmt::print(std::ostream &os, CStringRef format_str,
- ArgList args)
-{
- MemoryWriter w;
- w.write(format_str, args);
- write(os, w);
-}
-
-FMT_FUNC void fmt::print_colored(Color c, CStringRef format, ArgList args)
-{
- char escape[] = "\x1b[30m";
- escape[3] = static_cast<char>('0' + c);
- std::fputs(escape, stdout);
- print(format, args);
- std::fputs(RESET_COLOR, stdout);
-}
-
-FMT_FUNC int fmt::fprintf(std::FILE *f, CStringRef format, ArgList args)
-{
- MemoryWriter w;
- printf(w, format, args);
- std::size_t size = w.size();
- return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast<int>(size);
-}
-
-FMT_FUNC int fmt::fprintf(std::ostream &os, CStringRef format, ArgList args)
-{
- MemoryWriter w;
- printf(w, format, args);
- write(os, w);
- return static_cast<int>(w.size());
-}
-
-#ifndef FMT_HEADER_ONLY
-
-template struct fmt::internal::BasicData<void>;
-
-// Explicit instantiations for char.
-
-template void fmt::internal::FixedBuffer<char>::grow(std::size_t);
-
-template void fmt::internal::ArgMap<char>::init(const fmt::ArgList &args);
-
-template void fmt::internal::PrintfFormatter<char>::format(
- BasicWriter<char> &writer, CStringRef format);
-
-template int fmt::internal::CharTraits<char>::format_float(
- char *buffer, std::size_t size, const char *format,
- unsigned width, int precision, double value);
-
-template int fmt::internal::CharTraits<char>::format_float(
- char *buffer, std::size_t size, const char *format,
- unsigned width, int precision, long double value);
-
-// Explicit instantiations for wchar_t.
-
-template void fmt::internal::FixedBuffer<wchar_t>::grow(std::size_t);
-
-template void fmt::internal::ArgMap<wchar_t>::init(const fmt::ArgList &args);
-
-template void fmt::internal::PrintfFormatter<wchar_t>::format(
- BasicWriter<wchar_t> &writer, WCStringRef format);
-
-template int fmt::internal::CharTraits<wchar_t>::format_float(
- wchar_t *buffer, std::size_t size, const wchar_t *format,
- unsigned width, int precision, double value);
-
-template int fmt::internal::CharTraits<wchar_t>::format_float(
- wchar_t *buffer, std::size_t size, const wchar_t *format,
- unsigned width, int precision, long double value);
-
-#endif // FMT_HEADER_ONLY
-
-#ifdef _MSC_VER
-# pragma warning(pop)
-#endif \ No newline at end of file
diff --git a/include/spdlog/details/format.h b/include/spdlog/details/format.h
deleted file mode 100644
index 8046e614..00000000
--- a/include/spdlog/details/format.h
+++ /dev/null
@@ -1,4500 +0,0 @@
-/*
-Formatting library for C++
-
-Copyright (c) 2012 - 2015, Victor Zverovich
-All rights reserved.
-
-Redistribution and use in source and binary forms, with or without
-modification, are permitted provided that the following conditions are met:
-
-1. Redistributions of source code must retain the above copyright notice, this
-list of conditions and the following disclaimer.
-2. Redistributions in binary form must reproduce the above copyright notice,
-this list of conditions and the following disclaimer in the documentation
-and/or other materials provided with the distribution.
-
-THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
-ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
-WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
-DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
-ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
-(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
-LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
-ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
-SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-
-#ifndef FMT_FORMAT_H_
-#define FMT_FORMAT_H_
-
-
-//Added to spdlog version for header only usage
-#define FMT_HEADER_ONLY
-
-//Added to spdlog version in order to avoid including windows.h
-#if !defined (FMT_USE_WINDOWS_H)
-#define FMT_USE_WINDOWS_H 0
-#endif
-
-#include <cassert>
-#include <cmath>
-#include <cstdio>
-#include <cstring>
-#include <limits>
-#include <memory>
-#include <stdexcept>
-#include <string>
-#include <vector>
-#include <utility>
-
-#ifndef FMT_USE_IOSTREAMS
-# define FMT_USE_IOSTREAMS 1
-#endif
-
-#if FMT_USE_IOSTREAMS
-# include <ostream>
-#endif
-
-#ifdef _SECURE_SCL
-# define FMT_SECURE_SCL _SECURE_SCL
-#else
-# define FMT_SECURE_SCL 0
-#endif
-
-#if FMT_SECURE_SCL
-# include <iterator>
-#endif
-
-#if defined(_MSC_VER) && _MSC_VER <= 1500
-typedef unsigned __int32 uint32_t;
-typedef unsigned __int64 uint64_t;
-typedef __int64 intmax_t;
-#else
-#include <stdint.h>
-#endif
-
-#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
-# ifdef FMT_EXPORT
-# define FMT_API __declspec(dllexport)
-# elif defined(FMT_SHARED)
-# define FMT_API __declspec(dllimport)
-# endif
-#endif
-#ifndef FMT_API
-# define FMT_API
-#endif
-
-#ifdef __GNUC__
-# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
-# define FMT_GCC_EXTENSION __extension__
-# if FMT_GCC_VERSION >= 406
-# pragma GCC diagnostic push
-// Disable the warning about "long long" which is sometimes reported even
-// when using __extension__.
-# pragma GCC diagnostic ignored "-Wlong-long"
-// Disable the warning about declaration shadowing because it affects too
-// many valid cases.
-# pragma GCC diagnostic ignored "-Wshadow"
-// Disable the warning about implicit conversions that may change the sign of
-// an integer; silencing it otherwise would require many explicit casts.
-# pragma GCC diagnostic ignored "-Wsign-conversion"
-# endif
-# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__
-# define FMT_HAS_GXX_CXX11 1
-# endif
-#else
-# define FMT_GCC_EXTENSION
-#endif
-
-#if defined(__clang__) && !defined(__INTEL_COMPILER)
-# pragma clang diagnostic push
-# pragma clang diagnostic ignored "-Wdocumentation"
-#endif
-
-#ifdef __GNUC_LIBSTD__
-# define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__)
-#endif
-
-#ifdef __has_feature
-# define FMT_HAS_FEATURE(x) __has_feature(x)
-#else
-# define FMT_HAS_FEATURE(x) 0
-#endif
-
-#ifdef __has_builtin
-# define FMT_HAS_BUILTIN(x) __has_builtin(x)
-#else
-# define FMT_HAS_BUILTIN(x) 0
-#endif
-
-#ifdef __has_cpp_attribute
-# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
-#else
-# define FMT_HAS_CPP_ATTRIBUTE(x) 0
-#endif
-
-#ifndef FMT_USE_VARIADIC_TEMPLATES
-// Variadic templates are available in GCC since version 4.4
-// (http://gcc.gnu.org/projects/cxx0x.html) and in Visual C++
-// since version 2013.
-# define FMT_USE_VARIADIC_TEMPLATES \
- (FMT_HAS_FEATURE(cxx_variadic_templates) || \
- (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800)
-#endif
-
-#ifndef FMT_USE_RVALUE_REFERENCES
-// Don't use rvalue references when compiling with clang and an old libstdc++
-// as the latter doesn't provide std::move.
-# if defined(FMT_GNUC_LIBSTD_VERSION) && FMT_GNUC_LIBSTD_VERSION <= 402
-# define FMT_USE_RVALUE_REFERENCES 0
-# else
-# define FMT_USE_RVALUE_REFERENCES \
- (FMT_HAS_FEATURE(cxx_rvalue_references) || \
- (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1600)
-# endif
-#endif
-
-#if FMT_USE_RVALUE_REFERENCES
-# include <utility> // for std::move
-#endif
-
-// Check if exceptions are disabled.
-#if defined(__GNUC__) && !defined(__EXCEPTIONS)
-# define FMT_EXCEPTIONS 0
-#endif
-#if defined(_MSC_VER) && !_HAS_EXCEPTIONS
-# define FMT_EXCEPTIONS 0
-#endif
-#ifndef FMT_EXCEPTIONS
-# define FMT_EXCEPTIONS 1
-#endif
-
-#ifndef FMT_THROW
-# if FMT_EXCEPTIONS
-# define FMT_THROW(x) throw x
-# else
-# define FMT_THROW(x) assert(false)
-# endif
-#endif
-
-// Define FMT_USE_NOEXCEPT to make C++ Format use noexcept (C++11 feature).
-#ifndef FMT_USE_NOEXCEPT
-# define FMT_USE_NOEXCEPT 0
-#endif
-
-#ifndef FMT_NOEXCEPT
-# if FMT_EXCEPTIONS
-# if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \
- (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \
- _MSC_VER >= 1900
-# define FMT_NOEXCEPT noexcept
-# else
-# define FMT_NOEXCEPT throw()
-# endif
-# else
-# define FMT_NOEXCEPT
-# endif
-#endif
-
-// A macro to disallow the copy constructor and operator= functions
-// This should be used in the private: declarations for a class
-#ifndef FMT_USE_DELETED_FUNCTIONS
-# define FMT_USE_DELETED_FUNCTIONS 0
-#endif
-
-#if FMT_USE_DELETED_FUNCTIONS || FMT_HAS_FEATURE(cxx_deleted_functions) || \
- (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1800
-# define FMT_DELETED_OR_UNDEFINED = delete
-# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&) = delete; \
- TypeName& operator=(const TypeName&) = delete
-#else
-# define FMT_DELETED_OR_UNDEFINED
-# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
- TypeName(const TypeName&); \
- TypeName& operator=(const TypeName&)
-#endif
-
-#ifndef FMT_USE_USER_DEFINED_LITERALS
-// All compilers which support UDLs also support variadic templates. This
-// makes the fmt::literals implementation easier. However, an explicit check
-// for variadic templates is added here just in case.
-# define FMT_USE_USER_DEFINED_LITERALS \
- FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
- (FMT_HAS_FEATURE(cxx_user_literals) || \
- (FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || _MSC_VER >= 1900)
-#endif
-
-#ifndef FMT_ASSERT
-# define FMT_ASSERT(condition, message) assert((condition) && message)
-#endif
-
-
-#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz)
-# define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
-#endif
-
-#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll)
-# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
-#endif
-
-// Some compilers masquerade as both MSVC and GCC-likes or
-// otherwise support __builtin_clz and __builtin_clzll, so
-// only define FMT_BUILTIN_CLZ using the MSVC intrinsics
-// if the clz and clzll builtins are not available.
-#if defined(_MSC_VER) && !defined(FMT_BUILTIN_CLZLL)
-# include <intrin.h> // _BitScanReverse, _BitScanReverse64
-
-namespace fmt
-{
-namespace internal
-{
-# pragma intrinsic(_BitScanReverse)
-inline uint32_t clz(uint32_t x)
-{
- unsigned long r = 0;
- _BitScanReverse(&r, x);
-
- assert(x != 0);
- // Static analysis complains about using uninitialized data
- // "r", but the only way that can happen is if "x" is 0,
- // which the callers guarantee to not happen.
-# pragma warning(suppress: 6102)
- return 31 - r;
-}
-# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
-
-# ifdef _WIN64
-# pragma intrinsic(_BitScanReverse64)
-# endif
-
-inline uint32_t clzll(uint64_t x)
-{
- unsigned long r = 0;
-# ifdef _WIN64
- _BitScanReverse64(&r, x);
-# else
- // Scan the high 32 bits.
- if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
- return 63 - (r + 32);
-
- // Scan the low 32 bits.
- _BitScanReverse(&r, static_cast<uint32_t>(x));
-# endif
-
- assert(x != 0);
- // Static analysis complains about using uninitialized data
- // "r", but the only way that can happen is if "x" is 0,
- // which the callers guarantee to not happen.
-# pragma warning(suppress: 6102)
- return 63 - r;
-}
-# define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n)
-}
-}
-#endif
-
-namespace fmt
-{
-namespace internal
-{
-struct DummyInt
-{
- int data[2];
- operator int() const
- {
- return 0;
- }
-};
-typedef std::numeric_limits<fmt::internal::DummyInt> FPUtil;
-
-// Dummy implementations of system functions such as signbit and ecvt called
-// if the latter are not available.
-inline DummyInt signbit(...)
-{
- return DummyInt();
-}
-inline DummyInt _ecvt_s(...)
-{
- return DummyInt();
-}
-inline DummyInt isinf(...)
-{
- return DummyInt();
-}
-inline DummyInt _finite(...)
-{
- return DummyInt();
-}
-inline DummyInt isnan(...)
-{
- return DummyInt();
-}
-inline DummyInt _isnan(...)
-{
- return DummyInt();
-}
-
-// A helper function to suppress bogus "conditional expression is constant"
-// warnings.
-template <typename T>
-inline T check(T value)
-{
- return value;
-}
-}
-} // namespace fmt
-
-namespace std
-{
-// Standard permits specialization of std::numeric_limits. This specialization
-// is used to resolve ambiguity between isinf and std::isinf in glibc:
-// https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891
-// and the same for isnan and signbit.
-template <>
-class numeric_limits<fmt::internal::DummyInt>:
- public std::numeric_limits<int>
-{
-public:
- // Portable version of isinf.
- template <typename T>
- static bool isinfinity(T x)
- {
- using namespace fmt::internal;
- // The resolution "priority" is:
- // isinf macro > std::isinf > ::isinf > fmt::internal::isinf
- if (check(sizeof(isinf(x)) == sizeof(bool) ||
- sizeof(isinf(x)) == sizeof(int)))
- {
- return isinf(x) != 0;
- }
- return !_finite(static_cast<double>(x));
- }
-
- // Portable version of isnan.
- template <typename T>
- static bool isnotanumber(T x)
- {
- using namespace fmt::internal;
- if (check(sizeof(isnan(x)) == sizeof(bool) ||
- sizeof(isnan(x)) == sizeof(int)))
- {
- return isnan(x) != 0;
- }
- return _isnan(static_cast<double>(x)) != 0;
- }
-
- // Portable version of signbit.
- static bool isnegative(double x)
- {
- using namespace fmt::internal;
- if (check(sizeof(signbit(x)) == sizeof(int)))
- return signbit(x) != 0;
- if (x < 0) return true;
- if (!isnotanumber(x)) return false;
- int dec = 0, sign = 0;
- char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail.
- _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign);
- return sign != 0;
- }
-};
-} // namespace std
-
-namespace fmt
-{
-
-// Fix the warning about long long on older versions of GCC
-// that don't support the diagnostic pragma.
-FMT_GCC_EXTENSION typedef long long LongLong;
-FMT_GCC_EXTENSION typedef unsigned long long ULongLong;
-
-#if FMT_USE_RVALUE_REFERENCES
-using std::move;
-#endif
-
-template <typename Char>
-class BasicWriter;
-
-typedef BasicWriter<char> Writer;
-typedef BasicWriter<wchar_t> WWriter;
-
-namespace internal
-{
-template <typename Char>
-class BasicArgFormatter;
-}
-
-template <typename CharType,
- typename ArgFormatter = internal::BasicArgFormatter<CharType> >
-class BasicFormatter;
-
-template <typename Char, typename T>
-void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value);
-
-/**
-\rst
-A string reference. It can be constructed from a C string or ``std::string``.
-
-You can use one of the following typedefs for common character types:
-
-+------------+-------------------------+
-| Type | Definition |
-+============+=========================+
-| StringRef | BasicStringRef<char> |
-+------------+-------------------------+
-| WStringRef | BasicStringRef<wchar_t> |
-+------------+-------------------------+
-
-This class is most useful as a parameter type to allow passing
-different types of strings to a function, for example::
-
-template <typename... Args>
-std::string format(StringRef format_str, const Args & ... args);
-
-format("{}", 42);
-format(std::string("{}"), 42);
-\endrst
-*/
-template <typename Char>
-class BasicStringRef
-{
-private:
- const Char *data_;
- std::size_t size_;
-
-public:
- /** Constructs a string reference object from a C string and a size. */
- BasicStringRef(const Char *s, std::size_t size): data_(s), size_(size)
- {}
-
- /**
- \rst
- Constructs a string reference object from a C string computing
- the size with ``std::char_traits<Char>::length``.
- \endrst
- */
- BasicStringRef(const Char *s)
- : data_(s), size_(std::char_traits<Char>::length(s))
- {}
-
- /**
- \rst
- Constructs a string reference from an ``std::string`` object.
- \endrst
- */
- BasicStringRef(const std::basic_string<Char> &s)
- : data_(s.c_str()), size_(s.size())
- {}
-
- /**
- \rst
- Converts a string reference to an ``std::string`` object.
- \endrst
- */
- std::basic_string<Char> to_string() const
- {
- return std::basic_string<Char>(data_, size_);
- }
-
- /** Returns a pointer to the string data. */
- const Char *data() const
- {
- return data_;
- }
-
- /** Returns the string size. */
- std::size_t size() const
- {
- return size_;
- }
-
- // Lexicographically compare this string reference to other.
- int compare(BasicStringRef other) const
- {
- std::size_t size = size_ < other.size_ ? size_ : other.size_;
- int result = std::char_traits<Char>::compare(data_, other.data_, size);
- if (result == 0)
- result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
- return result;
- }
-
- friend bool operator==(BasicStringRef lhs, BasicStringRef rhs)
- {
- return lhs.compare(rhs) == 0;
- }
- friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs)
- {
- return lhs.compare(rhs) != 0;
- }
- friend bool operator<(BasicStringRef lhs, BasicStringRef rhs)
- {
- return lhs.compare(rhs) < 0;
- }
- friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs)
- {
- return lhs.compare(rhs) <= 0;
- }
- friend bool operator>(BasicStringRef lhs, BasicStringRef rhs)
- {
- return lhs.compare(rhs) > 0;
- }
- friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs)
- {
- return lhs.compare(rhs) >= 0;
- }
-};
-
-typedef BasicStringRef<char> StringRef;
-typedef BasicStringRef<wchar_t> WStringRef;
-
-/**
-\rst
-A reference to a null terminated string. It can be constructed from a C
-string or ``std::string``.
-
-You can use one of the following typedefs for common character types:
-
-+-------------+--------------------------+
-| Type | Definition |
-+=============+==========================+
-| CStringRef | BasicCStringRef<char> |
-+-------------+--------------------------+
-| WCStringRef | BasicCStringRef<wchar_t> |
-+-------------+--------------------------+
-
-This class is most useful as a parameter type to allow passing
-different types of strings to a function, for example::
-
-template <typename... Args>
-std::string format(CStringRef format_str, const Args & ... args);
-
-format("{}", 42);
-format(std::string("{}"), 42);
-\endrst
-*/
-template <typename Char>
-class BasicCStringRef
-{
-private:
- const Char *data_;
-
-public:
- /** Constructs a string reference object from a C string. */
- BasicCStringRef(const Char *s): data_(s)
- {}
-
- /**
- \rst
- Constructs a string reference from an ``std::string`` object.
- \endrst
- */
- BasicCStringRef(const std::basic_string<Char> &s): data_(s.c_str())
- {}
-
- /** Returns the pointer to a C string. */
- const Char *c_str() const
- {
- return data_;
- }
-};
-
-typedef BasicCStringRef<char> CStringRef;
-typedef BasicCStringRef<wchar_t> WCStringRef;
-
-/**
-A formatting error such as invalid format string.
-*/
-class FormatError: public std::runtime_error
-{
-public:
- explicit FormatError(CStringRef message)
- : std::runtime_error(message.c_str())
- {}
-};
-
-namespace internal
-{
-
-// MakeUnsigned<T>::Type gives an unsigned type corresponding to integer type T.
-template <typename T>
-struct MakeUnsigned
-{
- typedef T Type;
-};
-
-#define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \
- template <> \
- struct MakeUnsigned<T> { typedef U Type; }
-
-FMT_SPECIALIZE_MAKE_UNSIGNED(char, unsigned char);
-FMT_SPECIALIZE_MAKE_UNSIGNED(signed char, unsigned char);
-FMT_SPECIALIZE_MAKE_UNSIGNED(short, unsigned short);
-FMT_SPECIALIZE_MAKE_UNSIGNED(int, unsigned);
-FMT_SPECIALIZE_MAKE_UNSIGNED(long, unsigned long);
-FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong);
-
-// Casts nonnegative integer to unsigned.
-template <typename Int>
-inline typename MakeUnsigned<Int>::Type to_unsigned(Int value)
-{
- FMT_ASSERT(value >= 0, "negative value");
- return static_cast<typename MakeUnsigned<Int>::Type>(value);
-}
-
-// The number of characters to store in the MemoryBuffer object itself
-// to avoid dynamic memory allocation.
-enum
-{
- INLINE_BUFFER_SIZE = 500
-};
-
-#if FMT_SECURE_SCL
-// Use checked iterator to avoid warnings on MSVC.
-template <typename T>
-inline stdext::checked_array_iterator<T*> make_ptr(T *ptr, std::size_t size)
-{
- return stdext::checked_array_iterator<T*>(ptr, size);
-}
-#else
-template <typename T>
-inline T *make_ptr(T *ptr, std::size_t)
-{
- return ptr;
-}
-#endif
-} // namespace internal
-
-/**
-\rst
-A buffer supporting a subset of ``std::vector``'s operations.
-\endrst
-*/
-template <typename T>
-class Buffer
-{
-private:
- FMT_DISALLOW_COPY_AND_ASSIGN(Buffer);
-
-protected:
- T *ptr_;
- std::size_t size_;
- std::size_t capacity_;
-
- Buffer(T *ptr = 0, std::size_t capacity = 0)
- : ptr_(ptr), size_(0), capacity_(capacity)
- {}
-
- /**
- \rst
- Increases the buffer capacity to hold at least *size* elements updating
- ``ptr_`` and ``capacity_``.
- \endrst
- */
- virtual void grow(std::size_t size) = 0;
-
-public:
- virtual ~Buffer()
- {}
-
- /** Returns the size of this buffer. */
- std::size_t size() const
- {
- return size_;
- }
-
- /** Returns the capacity of this buffer. */
- std::size_t capacity() const
- {
- return capacity_;
- }
-
- /**
- Resizes the buffer. If T is a POD type new elements may not be initialized.
- */
- void resize(std::size_t new_size)
- {
- if (new_size > capacity_)
- grow(new_size);
- size_ = new_size;
- }
-
- /**
- \rst
- Reserves space to store at least *capacity* elements.
- \endrst
- */
- void reserve(std::size_t capacity)
- {
- if (capacity > capacity_)
- grow(capacity);
- }
-
- void clear() FMT_NOEXCEPT
- {
- size_ = 0;
- }
-
- void push_back(const T &value)
- {
- if (size_ == capacity_)
- grow(size_ + 1);
- ptr_[size_++] = value;
- }
-
- /** Appends data to the end of the buffer. */
- template <typename U>
- void append(const U *begin, const U *end);
-
- T &operator[](std::size_t index)
- {
- return ptr_[index];
- }
- const T &operator[](std::size_t index) const
- {
- return ptr_[index];
- }
-};
-
-template <typename T>
-template <typename U>
-void Buffer<T>::append(const U *begin, const U *end)
-{
- std::size_t new_size = size_ + internal::to_unsigned(end - begin);
- if (new_size > capacity_)
- grow(new_size);
- std::uninitialized_copy(begin, end,
- internal::make_ptr(ptr_, capacity_) + size_);
- size_ = new_size;
-}
-
-namespace internal
-{
-
-// A memory buffer for trivially copyable/constructible types with the first SIZE
-// elements stored in the object itself.
-template <typename T, std::size_t SIZE, typename Allocator = std::allocator<T> >
-class MemoryBuffer: private Allocator, public Buffer<T>
-{
-private:
- T data_[SIZE];
-
- // Deallocate memory allocated by the buffer.
- void deallocate()
- {
- if (this->ptr_ != data_) Allocator::deallocate(this->ptr_, this->capacity_);
- }
-
-protected:
- void grow(std::size_t size);
-
-public:
- explicit MemoryBuffer(const Allocator &alloc = Allocator())
- : Allocator(alloc), Buffer<T>(data_, SIZE)
- {}
- ~MemoryBuffer()
- {
- deallocate();
- }
-
-#if FMT_USE_RVALUE_REFERENCES
-private:
- // Move data from other to this buffer.
- void move(MemoryBuffer &other)
- {
- Allocator &this_alloc = *this, &other_alloc = other;
- this_alloc = std::move(other_alloc);
- this->size_ = other.size_;
- this->capacity_ = other.capacity_;
- if (other.ptr_ == other.data_)
- {
- this->ptr_ = data_;
- std::uninitialized_copy(other.data_, other.data_ + this->size_,
- make_ptr(data_, this->capacity_));
- }
- else
- {
- this->ptr_ = other.ptr_;
- // Set pointer to the inline array so that delete is not called
- // when deallocating.
- other.ptr_ = other.data_;
- }
- }
-
-public:
- MemoryBuffer(MemoryBuffer &&other)
- {
- move(other);
- }
-
- MemoryBuffer &operator=(MemoryBuffer &&other)
- {
- assert(this != &other);
- deallocate();
- move(other);
- return *this;
- }
-#endif
-
- // Returns a copy of the allocator associated with this buffer.
- Allocator get_allocator() const
- {
- return *this;
- }
-};
-
-template <typename T, std::size_t SIZE, typename Allocator>
-void MemoryBuffer<T, SIZE, Allocator>::grow(std::size_t size)
-{
- std::size_t new_capacity = this->capacity_ + this->capacity_ / 2;
- if (size > new_capacity)
- new_capacity = size;
- T *new_ptr = this->allocate(new_capacity);
- // The following code doesn't throw, so the raw pointer above doesn't leak.
- std::uninitialized_copy(this->ptr_, this->ptr_ + this->size_,
- make_ptr(new_ptr, new_capacity));
- std::size_t old_capacity = this->capacity_;
- T *old_ptr = this->ptr_;
- this->capacity_ = new_capacity;
- this->ptr_ = new_ptr;
- // deallocate may throw (at least in principle), but it doesn't matter since
- // the buffer already uses the new storage and will deallocate it in case
- // of exception.
- if (old_ptr != data_)
- Allocator::deallocate(old_ptr, old_capacity);
-}
-
-// A fixed-size buffer.
-template <typename Char>
-class FixedBuffer: public fmt::Buffer<Char>
-{
-public:
- FixedBuffer(Char *array, std::size_t size): fmt::Buffer<Char>(array, size)
- {}
-
-protected:
- FMT_API void grow(std::size_t size);
-};
-
-template <typename Char>
-class BasicCharTraits
-{
-public:
-#if FMT_SECURE_SCL
- typedef stdext::checked_array_iterator<Char*> CharPtr;
-#else
- typedef Char *CharPtr;
-#endif
- static Char cast(int value)
- {
- return static_cast<Char>(value);
- }
-};
-
-template <typename Char>
-class CharTraits;
-
-template <>
-class CharTraits<char>: public BasicCharTraits<char>
-{
-private:
- // Conversion from wchar_t to char is not allowed.
- static char convert(wchar_t);
-
-public:
- static char convert(char value)
- {
- return value;
- }
-
- // Formats a floating-point number.
- template <typename T>
- FMT_API static int format_float(char *buffer, std::size_t size,
- const char *format, unsigned width, int precision, T value);
-};
-
-template <>
-class CharTraits<wchar_t>: public BasicCharTraits<wchar_t>
-{
-public:
- static wchar_t convert(char value)
- {
- return value;
- }
- static wchar_t convert(wchar_t value)
- {
- return value;
- }
-
- template <typename T>
- FMT_API static int format_float(wchar_t *buffer, std::size_t size,
- const wchar_t *format, unsigned width, int precision, T value);
-};
-
-// Checks if a number is negative - used to avoid warnings.
-template <bool IsSigned>
-struct SignChecker
-{
- template <typename T>
- static bool is_negative(T value)
- {
- return value < 0;
- }
-};
-
-template <>
-struct SignChecker<false>
-{
- template <typename T>
- static bool is_negative(T)
- {
- return false;
- }
-};
-
-// Returns true if value is negative, false otherwise.
-// Same as (value < 0) but doesn't produce warnings if T is an unsigned type.
-template <typename T>
-inline bool is_negative(T value)
-{
- return SignChecker<std::numeric_limits<T>::is_signed>::is_negative(value);
-}
-
-// Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise.
-template <bool FitsIn32Bits>
-struct TypeSelector
-{
- typedef uint32_t Type;
-};
-
-template <>
-struct TypeSelector<false>
-{
- typedef uint64_t Type;
-};
-
-template <typename T>
-struct IntTraits
-{
- // Smallest of uint32_t and uint64_t that is large enough to represent
- // all values of T.
- typedef typename
- TypeSelector<std::numeric_limits<T>::digits <= 32>::Type MainType;
-};
-
-FMT_API void report_unknown_type(char code, const char *type);
-
-// Static data is placed in this class template to allow header-only
-// configuration.
-template <typename T = void>
-struct FMT_API BasicData
-{
- static const uint32_t POWERS_OF_10_32[];
- static const uint64_t POWERS_OF_10_64[];
- static const char DIGITS[];
-};
-
-typedef BasicData<> Data;
-
-#ifdef FMT_BUILTIN_CLZLL
-// Returns the number of decimal digits in n. Leading zeros are not counted
-// except for n == 0 in which case count_digits returns 1.
-inline unsigned count_digits(uint64_t n)
-{
- // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
- // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
- int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
- return to_unsigned(t) - (n < Data::POWERS_OF_10_64[t]) + 1;
-}
-#else
-// Fallback version of count_digits used when __builtin_clz is not available.
-inline unsigned count_digits(uint64_t n)
-{
- unsigned count = 1;
- for (;;)
- {
- // Integer division is slow so do it for a group of four digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- if (n < 10) return count;
- if (n < 100) return count + 1;
- if (n < 1000) return count + 2;
- if (n < 10000) return count + 3;
- n /= 10000u;
- count += 4;
- }
-}
-#endif
-
-#ifdef FMT_BUILTIN_CLZ
-// Optional version of count_digits for better performance on 32-bit platforms.
-inline unsigned count_digits(uint32_t n)
-{
- int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
- return to_unsigned(t) - (n < Data::POWERS_OF_10_32[t]) + 1;
-}
-#endif
-
-// Formats a decimal unsigned integer value writing into buffer.
-template <typename UInt, typename Char>
-inline void format_decimal(Char *buffer, UInt value, unsigned num_digits)
-{
- buffer += num_digits;
- while (value >= 100)
- {
- // Integer division is slow so do it for a group of two digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- unsigned index = static_cast<unsigned>((value % 100) * 2);
- value /= 100;
- *--buffer = Data::DIGITS[index + 1];
- *--buffer = Data::DIGITS[index];
- }
- if (value < 10)
- {
- *--buffer = static_cast<char>('0' + value);
- return;
- }
- unsigned index = static_cast<unsigned>(value * 2);
- *--buffer = Data::DIGITS[index + 1];
- *--buffer = Data::DIGITS[index];
-}
-
-#ifndef _WIN32
-# define FMT_USE_WINDOWS_H 0
-#elif !defined(FMT_USE_WINDOWS_H)
-# define FMT_USE_WINDOWS_H 1
-#endif
-
-// Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h.
-// All the functionality that relies on it will be disabled too.
-#if FMT_USE_WINDOWS_H
-// A converter from UTF-8 to UTF-16.
-// It is only provided for Windows since other systems support UTF-8 natively.
-class UTF8ToUTF16
-{
-private:
- MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer_;
-
-public:
- FMT_API explicit UTF8ToUTF16(StringRef s);
- operator WStringRef() const
- {
- return WStringRef(&buffer_[0], size());
- }
- size_t size() const
- {
- return buffer_.size() - 1;
- }
- const wchar_t *c_str() const
- {
- return &buffer_[0];
- }
- std::wstring str() const
- {
- return std::wstring(&buffer_[0], size());
- }
-};
-
-// A converter from UTF-16 to UTF-8.
-// It is only provided for Windows since other systems support UTF-8 natively.
-class UTF16ToUTF8
-{
-private:
- MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer_;
-
-public:
- UTF16ToUTF8()
- {}
- FMT_API explicit UTF16ToUTF8(WStringRef s);
- operator StringRef() const
- {
- return StringRef(&buffer_[0], size());
- }
- size_t size() const
- {
- return buffer_.size() - 1;
- }
- const char *c_str() const
- {
- return &buffer_[0];
- }
- std::string str() const
- {
- return std::string(&buffer_[0], size());
- }
-
- // Performs conversion returning a system error code instead of
- // throwing exception on conversion error. This method may still throw
- // in case of memory allocation error.
- FMT_API int convert(WStringRef s);
-};
-
-FMT_API void format_windows_error(fmt::Writer &out, int error_code,
- fmt::StringRef message) FMT_NOEXCEPT;
-#endif
-
-FMT_API void format_system_error(fmt::Writer &out, int error_code,
- fmt::StringRef message) FMT_NOEXCEPT;
-
-// A formatting argument value.
-struct Value
-{
- template <typename Char>
- struct StringValue
- {
- const Char *value;
- std::size_t size;
- };
-
- typedef void(*FormatFunc)(
- void *formatter, const void *arg, void *format_str_ptr);
-
- struct CustomValue
- {
- const void *value;
- FormatFunc format;
- };
-
- union
- {
- int int_value;
- unsigned uint_value;
- LongLong long_long_value;
- ULongLong ulong_long_value;
- double double_value;
- long double long_double_value;
- const void *pointer;
- StringValue<char> string;
- StringValue<signed char> sstring;
- StringValue<unsigned char> ustring;
- StringValue<wchar_t> wstring;
- CustomValue custom;
- };
-
- enum Type
- {
- NONE, NAMED_ARG,
- // Integer types should go first,
- INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR,
- // followed by floating-point types.
- DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE,
- CSTRING, STRING, WSTRING, POINTER, CUSTOM
- };
-};
-
-// A formatting argument. It is a trivially copyable/constructible type to
-// allow storage in internal::MemoryBuffer.
-struct Arg: Value
-{
- Type type;
-};
-
-template <typename Char>
-struct NamedArg;
-
-template <typename T = void>
-struct Null
-{};
-
-// A helper class template to enable or disable overloads taking wide
-// characters and strings in MakeValue.
-template <typename T, typename Char>
-struct WCharHelper
-{
- typedef Null<T> Supported;
- typedef T Unsupported;
-};
-
-template <typename T>
-struct WCharHelper<T, wchar_t>
-{
- typedef T Supported;
- typedef Null<T> Unsupported;
-};
-
-typedef char Yes[1];
-typedef char No[2];
-
-// These are non-members to workaround an overload resolution bug in bcc32.
-Yes &convert(fmt::ULongLong);
-Yes &convert(std::ostream &);
-No &convert(...);
-
-template <typename T>
-T &get();
-
-struct DummyStream: std::ostream
-{
- DummyStream(); // Suppress a bogus warning in MSVC.
- // Hide all operator<< overloads from std::ostream.
- void operator<<(Null<>);
-};
-
-No &operator<<(std::ostream &, int);
-
-template<typename T, bool ENABLE_CONVERSION>
-struct ConvertToIntImpl
-{
- enum
- {
- value = false
- };
-};
-
-template<typename T>
-struct ConvertToIntImpl<T, true>
-{
- // Convert to int only if T doesn't have an overloaded operator<<.
- enum
- {
- value = sizeof(convert(get<DummyStream>() << get<T>())) == sizeof(No)
- };
-};
-
-template<typename T, bool ENABLE_CONVERSION>
-struct ConvertToIntImpl2
-{
- enum
- {
- value = false
- };
-};
-
-template<typename T>
-struct ConvertToIntImpl2<T, true>
-{
- enum
- {
- // Don't convert numeric types.
- value = ConvertToIntImpl<T, !std::numeric_limits<T>::is_specialized>::value
- };
-};
-
-template<typename T>
-struct ConvertToInt
-{
- enum
- {
- enable_conversion = sizeof(convert(get<T>())) == sizeof(Yes)
- };
- enum
- {
- value = ConvertToIntImpl2<T, enable_conversion>::value
- };
-};
-
-#define FMT_DISABLE_CONVERSION_TO_INT(Type) \
- template <> \
- struct ConvertToInt<Type> { enum { value = 0 }; }
-
-// Silence warnings about convering float to int.
-FMT_DISABLE_CONVERSION_TO_INT(float);
-FMT_DISABLE_CONVERSION_TO_INT(double);
-FMT_DISABLE_CONVERSION_TO_INT(long double);
-
-template<bool B, class T = void>
-struct EnableIf
-{};
-
-template<class T>
-struct EnableIf<true, T>
-{
- typedef T type;
-};
-
-template<bool B, class T, class F>
-struct Conditional
-{
- typedef T type;
-};
-
-template<class T, class F>
-struct Conditional<false, T, F>
-{
- typedef F type;
-};
-
-// For bcc32 which doesn't understand ! in template arguments.
-template<bool>
-struct Not
-{
- enum
- {
- value = 0
- };
-};
-
-template<>
-struct Not<false>
-{
- enum
- {
- value = 1
- };
-};
-
-// Makes an Arg object from any type.
-template <typename Formatter>
-class MakeValue: public Arg
-{
-public:
- typedef typename Formatter::Char Char;
-
-private:
- // The following two methods are private to disallow formatting of
- // arbitrary pointers. If you want to output a pointer cast it to
- // "void *" or "const void *". In particular, this forbids formatting
- // of "[const] volatile char *" which is printed as bool by iostreams.
- // Do not implement!
- template <typename T>
- MakeValue(const T *value);
- template <typename T>
- MakeValue(T *value);
-
- // The following methods are private to disallow formatting of wide
- // characters and strings into narrow strings as in
- // fmt::format("{}", L"test");
- // To fix this, use a wide format string: fmt::format(L"{}", L"test").
-#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
- MakeValue(typename WCharHelper<wchar_t, Char>::Unsupported);
-#endif
- MakeValue(typename WCharHelper<wchar_t *, Char>::Unsupported);
- MakeValue(typename WCharHelper<const wchar_t *, Char>::Unsupported);
- MakeValue(typename WCharHelper<const std::wstring &, Char>::Unsupported);
- MakeValue(typename WCharHelper<WStringRef, Char>::Unsupported);
-
- void set_string(StringRef str)
- {
- string.value = str.data();
- string.size = str.size();
- }
-
- void set_string(WStringRef str)
- {
- wstring.value = str.data();
- wstring.size = str.size();
- }
-
- // Formats an argument of a custom type, such as a user-defined class.
- template <typename T>
- static void format_custom_arg(
- void *formatter, const void *arg, void *format_str_ptr)
- {
- format(*static_cast<Formatter*>(formatter),
- *static_cast<const Char**>(format_str_ptr),
- *static_cast<const T*>(arg));
- }
-
-public:
- MakeValue()
- {}
-
-#define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \
- MakeValue(Type value) { field = rhs; } \
- static uint64_t type(Type) { return Arg::TYPE; }
-
-#define FMT_MAKE_VALUE(Type, field, TYPE) \
- FMT_MAKE_VALUE_(Type, field, TYPE, value)
-
- FMT_MAKE_VALUE(bool, int_value, BOOL)
- FMT_MAKE_VALUE(short, int_value, INT)
- FMT_MAKE_VALUE(unsigned short, uint_value, UINT)
- FMT_MAKE_VALUE(int, int_value, INT)
- FMT_MAKE_VALUE(unsigned, uint_value, UINT)
-
- MakeValue(long value)
- {
- // To minimize the number of types we need to deal with, long is
- // translated either to int or to long long depending on its size.
- if (check(sizeof(long) == sizeof(int)))
- int_value = static_cast<int>(value);
- else
- long_long_value = value;
- }
- static uint64_t type(long)
- {
- return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG;
- }
-
- MakeValue(unsigned long value)
- {
- if (check(sizeof(unsigned long) == sizeof(unsigned)))
- uint_value = static_cast<unsigned>(value);
- else
- ulong_long_value = value;
- }
- static uint64_t type(unsigned long)
- {
- return sizeof(unsigned long) == sizeof(unsigned) ?
- Arg::UINT : Arg::ULONG_LONG;
- }
-
- FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG)
- FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG)
- FMT_MAKE_VALUE(float, double_value, DOUBLE)
- FMT_MAKE_VALUE(double, double_value, DOUBLE)
- FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE)
- FMT_MAKE_VALUE(signed char, int_value, INT)
- FMT_MAKE_VALUE(unsigned char, uint_value, UINT)
- FMT_MAKE_VALUE(char, int_value, CHAR)
-
-#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
- MakeValue(typename WCharHelper<wchar_t, Char>::Supported value)
- {
- int_value = value;
- }
- static uint64_t type(wchar_t)
- {
- return Arg::CHAR;
- }
-#endif
-
-#define FMT_MAKE_STR_VALUE(Type, TYPE) \
- MakeValue(Type value) { set_string(value); } \
- static uint64_t type(Type) { return Arg::TYPE; }
-
- FMT_MAKE_VALUE(char *, string.value, CSTRING)
- FMT_MAKE_VALUE(const char *, string.value, CSTRING)
- FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING)
- FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING)
- FMT_MAKE_STR_VALUE(const std::string &, STRING)
- FMT_MAKE_STR_VALUE(StringRef, STRING)
- FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str())
-
-#define FMT_MAKE_WSTR_VALUE(Type, TYPE) \
- MakeValue(typename WCharHelper<Type, Char>::Supported value) { \
- set_string(value); \
- } \
- static uint64_t type(Type) { return Arg::TYPE; }
-
- FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING)
- FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING)
- FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING)
- FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING)
-
- FMT_MAKE_VALUE(void *, pointer, POINTER)
- FMT_MAKE_VALUE(const void *, pointer, POINTER)
-
- template <typename T>
- MakeValue(const T &value,
- typename EnableIf<Not<
- ConvertToInt<T>::value>::value, int>::type = 0)
- {
- custom.value = &value;
- custom.format = &format_custom_arg<T>;
- }
-
- template <typename T>
- MakeValue(const T &value,
- typename EnableIf<ConvertToInt<T>::value, int>::type = 0)
- {
- int_value = value;
- }
-
- template <typename T>
- static uint64_t type(const T &)
- {
- return ConvertToInt<T>::value ? Arg::INT : Arg::CUSTOM;
- }
-
- // Additional template param `Char_` is needed here because make_type always
- // uses char.
- template <typename Char_>
- MakeValue(const NamedArg<Char_> &value)
- {
- pointer = &value;
- }
-
- template <typename Char_>
- static uint64_t type(const NamedArg<Char_> &)
- {
- return Arg::NAMED_ARG;
- }
-};
-
-template <typename Formatter>
-class MakeArg: public Arg
-{
-public:
- MakeArg()
- {
- type = Arg::NONE;
- }
-
- template <typename T>
- MakeArg(const T &value)
- : Arg(MakeValue<Formatter>(value))
- {
- type = static_cast<Arg::Type>(MakeValue<Formatter>::type(value));
- }
-};
-
-template <typename Char>
-struct NamedArg: Arg
-{
- BasicStringRef<Char> name;
-
- template <typename T>
- NamedArg(BasicStringRef<Char> argname, const T &value)
- : Arg(MakeArg< BasicFormatter<Char> >(value)), name(argname)
- {}
-};
-
-#define FMT_DISPATCH(call) static_cast<Impl*>(this)->call
-
-// An argument visitor.
-// To use ArgVisitor define a subclass that implements some or all of the
-// visit methods with the same signatures as the methods in ArgVisitor,
-// for example, visit_int(int).
-// Specify the subclass name as the Impl template parameter. Then calling
-// ArgVisitor::visit for some argument will dispatch to a visit method
-// specific to the argument type. For example, if the argument type is
-// double then visit_double(double) method of a subclass will be called.
-// If the subclass doesn't contain a method with this signature, then
-// a corresponding method of ArgVisitor will be called.
-//
-// Example:
-// class MyArgVisitor : public ArgVisitor<MyArgVisitor, void> {
-// public:
-// void visit_int(int value) { print("{}", value); }
-// void visit_double(double value) { print("{}", value ); }
-// };
-//
-// ArgVisitor uses the curiously recurring template pattern:
-// http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern
-template <typename Impl, typename Result>
-class ArgVisitor
-{
-public:
- void report_unhandled_arg()
- {}
-
- Result visit_unhandled_arg()
- {
- FMT_DISPATCH(report_unhandled_arg());
- return Result();
- }
-
- Result visit_int(int value)
- {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_long_long(LongLong value)
- {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_uint(unsigned value)
- {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_ulong_long(ULongLong value)
- {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_bool(bool value)
- {
- return FMT_DISPATCH(visit_any_int(value));
- }
- Result visit_char(int value)
- {
- return FMT_DISPATCH(visit_any_int(value));
- }
- template <typename T>
- Result visit_any_int(T)
- {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
-
- Result visit_double(double value)
- {
- return FMT_DISPATCH(visit_any_double(value));
- }
- Result visit_long_double(long double value)
- {
- return FMT_DISPATCH(visit_any_double(value));
- }
- template <typename T>
- Result visit_any_double(T)
- {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
-
- Result visit_cstring(const char *)
- {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
- Result visit_string(Arg::StringValue<char>)
- {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
- Result visit_wstring(Arg::StringValue<wchar_t>)
- {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
- Result visit_pointer(const void *)
- {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
- Result visit_custom(Arg::CustomValue)
- {
- return FMT_DISPATCH(visit_unhandled_arg());
- }
-
- Result visit(const Arg &arg)
- {
- switch (arg.type)
- {
- default:
- FMT_ASSERT(false, "invalid argument type");
- return Result();
- case Arg::INT:
- return FMT_DISPATCH(visit_int(arg.int_value));
- case Arg::UINT:
- return FMT_DISPATCH(visit_uint(arg.uint_value));
- case Arg::LONG_LONG:
- return FMT_DISPATCH(visit_long_long(arg.long_long_value));
- case Arg::ULONG_LONG:
- return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value));
- case Arg::BOOL:
- return FMT_DISPATCH(visit_bool(arg.int_value != 0));
- case Arg::CHAR:
- return FMT_DISPATCH(visit_char(arg.int_value));
- case Arg::DOUBLE:
- return FMT_DISPATCH(visit_double(arg.double_value));
- case Arg::LONG_DOUBLE:
- return FMT_DISPATCH(visit_long_double(arg.long_double_value));
- case Arg::CSTRING:
- return FMT_DISPATCH(visit_cstring(arg.string.value));
- case Arg::STRING:
- return FMT_DISPATCH(visit_string(arg.string));
- case Arg::WSTRING:
- return FMT_DISPATCH(visit_wstring(arg.wstring));
- case Arg::POINTER:
- return FMT_DISPATCH(visit_pointer(arg.pointer));
- case Arg::CUSTOM:
- return FMT_DISPATCH(visit_custom(arg.custom));
- }
- }
-};
-
-class RuntimeError: public std::runtime_error
-{
-protected:
- RuntimeError(): std::runtime_error("")
- {}
-};
-
-template <typename Char>
-class PrintfArgFormatter;
-
-template <typename Char>
-class ArgMap;
-} // namespace internal
-
-/** An argument list. */
-class ArgList
-{
-private:
- // To reduce compiled code size per formatting function call, types of first
- // MAX_PACKED_ARGS arguments are passed in the types_ field.
- uint64_t types_;
- union
- {
- // If the number of arguments is less than MAX_PACKED_ARGS, the argument
- // values are stored in values_, otherwise they are stored in args_.
- // This is done to reduce compiled code size as storing larger objects
- // may require more code (at least on x86-64) even if the same amount of
- // data is actually copied to stack. It saves ~10% on the bloat test.
- const internal::Value *values_;
- const internal::Arg *args_;
- };
-
- internal::Arg::Type type(unsigned index) const
- {
- unsigned shift = index * 4;
- uint64_t mask = 0xf;
- return static_cast<internal::Arg::Type>(
- (types_ & (mask << shift)) >> shift);
- }
-
- template <typename Char>
- friend class internal::ArgMap;
-
-public:
- // Maximum number of arguments with packed types.
- enum
- {
- MAX_PACKED_ARGS = 16
- };
-
- ArgList(): types_(0)
- {}
-
- ArgList(ULongLong types, const internal::Value *values)
- : types_(types), values_(values)
- {}
- ArgList(ULongLong types, const internal::Arg *args)
- : types_(types), args_(args)
- {}
-
- /** Returns the argument at specified index. */
- internal::Arg operator[](unsigned index) const
- {
- using internal::Arg;
- Arg arg;
- bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE;
- if (index < MAX_PACKED_ARGS)
- {
- Arg::Type arg_type = type(index);
- internal::Value &val = arg;
- if (arg_type != Arg::NONE)
- val = use_values ? values_[index] : args_[index];
- arg.type = arg_type;
- return arg;
- }
- if (use_values)
- {
- // The index is greater than the number of arguments that can be stored
- // in values, so return a "none" argument.
- arg.type = Arg::NONE;
- return arg;
- }
- for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i)
- {
- if (args_[i].type == Arg::NONE)
- return args_[i];
- }
- return args_[index];
- }
-};
-
-enum Alignment
-{
- ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC
-};
-
-// Flags.
-enum
-{
- SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8,
- CHAR_FLAG = 0x10 // Argument has char type - used in error reporting.
-};
-
-// An empty format specifier.
-struct EmptySpec
-{};
-
-// A type specifier.
-template <char TYPE>
-struct TypeSpec: EmptySpec
-{
- Alignment align() const
- {
- return ALIGN_DEFAULT;
- }
- unsigned width() const
- {
- return 0;
- }
- int precision() const
- {
- return -1;
- }
- bool flag(unsigned) const
- {
- return false;
- }
- char type() const
- {
- return TYPE;
- }
- char fill() const
- {
- return ' ';
- }
-};
-
-// A width specifier.
-struct WidthSpec
-{
- unsigned width_;
- // Fill is always wchar_t and cast to char if necessary to avoid having
- // two specialization of WidthSpec and its subclasses.
- wchar_t fill_;
-
- WidthSpec(unsigned width, wchar_t fill): width_(width), fill_(fill)
- {}
-
- unsigned width() const
- {
- return width_;
- }
- wchar_t fill() const
- {
- return fill_;
- }
-};
-
-// An alignment specifier.
-struct AlignSpec: WidthSpec
-{
- Alignment align_;
-
- AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT)
- : WidthSpec(width, fill), align_(align)
- {}
-
- Alignment align() const
- {
- return align_;
- }
-
- int precision() const
- {
- return -1;
- }
-};
-
-// An alignment and type specifier.
-template <char TYPE>
-struct AlignTypeSpec: AlignSpec
-{
- AlignTypeSpec(unsigned width, wchar_t fill): AlignSpec(width, fill)
- {}
-
- bool flag(unsigned) const
- {
- return false;
- }
- char type() const
- {
- return TYPE;
- }
-};
-
-// A full format specifier.
-struct FormatSpec: AlignSpec
-{
- unsigned flags_;
- int precision_;
- char type_;
-
- FormatSpec(
- unsigned width = 0, char type = 0, wchar_t fill = ' ')
- : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type)
- {}
-
- bool flag(unsigned f) const
- {
- return (flags_ & f) != 0;
- }
- int precision() const
- {
- return precision_;
- }
- char type() const
- {
- return type_;
- }
-};
-
-// An integer format specifier.
-template <typename T, typename SpecT = TypeSpec<0>, typename Char = char>
-class IntFormatSpec: public SpecT
-{
-private:
- T value_;
-
-public:
- IntFormatSpec(T val, const SpecT &spec = SpecT())
- : SpecT(spec), value_(val)
- {}
-
- T value() const
- {
- return value_;
- }
-};
-
-// A string format specifier.
-template <typename Char>
-class StrFormatSpec: public AlignSpec
-{
-private:
- const Char *str_;
-
-public:
- template <typename FillChar>
- StrFormatSpec(const Char *str, unsigned width, FillChar fill)
- : AlignSpec(width, fill), str_(str)
- {
- internal::CharTraits<Char>::convert(FillChar());
- }
-
- const Char *str() const
- {
- return str_;
- }
-};
-
-/**
-Returns an integer format specifier to format the value in base 2.
-*/
-IntFormatSpec<int, TypeSpec<'b'> > bin(int value);
-
-/**
-Returns an integer format specifier to format the value in base 8.
-*/
-IntFormatSpec<int, TypeSpec<'o'> > oct(int value);
-
-/**
-Returns an integer format specifier to format the value in base 16 using
-lower-case letters for the digits above 9.
-*/
-IntFormatSpec<int, TypeSpec<'x'> > hex(int value);
-
-/**
-Returns an integer formatter format specifier to format in base 16 using
-upper-case letters for the digits above 9.
-*/
-IntFormatSpec<int, TypeSpec<'X'> > hexu(int value);
-
-/**
-\rst
-Returns an integer format specifier to pad the formatted argument with the
-fill character to the specified width using the default (right) numeric
-alignment.
-
-**Example**::
-
-MemoryWriter out;
-out << pad(hex(0xcafe), 8, '0');
-// out.str() == "0000cafe"
-
-\endrst
-*/
-template <char TYPE_CODE, typename Char>
-IntFormatSpec<int, AlignTypeSpec<TYPE_CODE>, Char> pad(
- int value, unsigned width, Char fill = ' ');
-
-#define FMT_DEFINE_INT_FORMATTERS(TYPE) \
-inline IntFormatSpec<TYPE, TypeSpec<'b'> > bin(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'b'> >(value, TypeSpec<'b'>()); \
-} \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'o'> > oct(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'o'> >(value, TypeSpec<'o'>()); \
-} \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'x'> > hex(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'x'> >(value, TypeSpec<'x'>()); \
-} \
- \
-inline IntFormatSpec<TYPE, TypeSpec<'X'> > hexu(TYPE value) { \
- return IntFormatSpec<TYPE, TypeSpec<'X'> >(value, TypeSpec<'X'>()); \
-} \
- \
-template <char TYPE_CODE> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> > pad( \
- IntFormatSpec<TYPE, TypeSpec<TYPE_CODE> > f, unsigned width) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> >( \
- f.value(), AlignTypeSpec<TYPE_CODE>(width, ' ')); \
-} \
- \
-/* For compatibility with older compilers we provide two overloads for pad, */ \
-/* one that takes a fill character and one that doesn't. In the future this */ \
-/* can be replaced with one overload making the template argument Char */ \
-/* default to char (C++11). */ \
-template <char TYPE_CODE, typename Char> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char> pad( \
- IntFormatSpec<TYPE, TypeSpec<TYPE_CODE>, Char> f, \
- unsigned width, Char fill) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char>( \
- f.value(), AlignTypeSpec<TYPE_CODE>(width, fill)); \
-} \
- \
-inline IntFormatSpec<TYPE, AlignTypeSpec<0> > pad( \
- TYPE value, unsigned width) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<0> >( \
- value, AlignTypeSpec<0>(width, ' ')); \
-} \
- \
-template <typename Char> \
-inline IntFormatSpec<TYPE, AlignTypeSpec<0>, Char> pad( \
- TYPE value, unsigned width, Char fill) { \
- return IntFormatSpec<TYPE, AlignTypeSpec<0>, Char>( \
- value, AlignTypeSpec<0>(width, fill)); \
-}
-
-FMT_DEFINE_INT_FORMATTERS(int)
-FMT_DEFINE_INT_FORMATTERS(long)
-FMT_DEFINE_INT_FORMATTERS(unsigned)
-FMT_DEFINE_INT_FORMATTERS(unsigned long)
-FMT_DEFINE_INT_FORMATTERS(LongLong)
-FMT_DEFINE_INT_FORMATTERS(ULongLong)
-
-/**
-\rst
-Returns a string formatter that pads the formatted argument with the fill
-character to the specified width using the default (left) string alignment.
-
-**Example**::
-
-std::string s = str(MemoryWriter() << pad("abc", 8));
-// s == "abc "
-
-\endrst
-*/
-template <typename Char>
-inline StrFormatSpec<Char> pad(
- const Char *str, unsigned width, Char fill = ' ')
-{
- return StrFormatSpec<Char>(str, width, fill);
-}
-
-inline StrFormatSpec<wchar_t> pad(
- const wchar_t *str, unsigned width, char fill = ' ')
-{
- return StrFormatSpec<wchar_t>(str, width, fill);
-}
-
-namespace internal
-{
-
-template <typename Char>
-class ArgMap
-{
-private:
- typedef std::vector<std::pair<fmt::BasicStringRef<Char>, internal::Arg> > MapType;
- typedef typename MapType::value_type Pair;
-
- MapType map_;
-
-public:
- FMT_API void init(const ArgList &args);
-
- const internal::Arg* find(const fmt::BasicStringRef<Char> &name) const
- {
- // The list is unsorted, so just return the first matching name.
- for (typename MapType::const_iterator it = map_.begin(), end = map_.end();
- it != end; ++it)
- {
- if (it->first == name)
- return &it->second;
- }
- return 0;
- }
-};
-
-template <typename Impl, typename Char>
-class ArgFormatterBase: public ArgVisitor<Impl, void>
-{
-private:
- BasicWriter<Char> &writer_;
- FormatSpec &spec_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(ArgFormatterBase);
-
- void write_pointer(const void *p)
- {
- spec_.flags_ = HASH_FLAG;
- spec_.type_ = 'x';
- writer_.write_int(reinterpret_cast<uintptr_t>(p), spec_);
- }
-
-protected:
- BasicWriter<Char> &writer()
- {
- return writer_;
- }
- FormatSpec &spec()
- {
- return spec_;
- }
-
- void write(bool value)
- {
- const char *str_value = value ? "true" : "false";
- Arg::StringValue<char> str = { str_value, std::strlen(str_value) };
- writer_.write_str(str, spec_);
- }
-
- void write(const char *value)
- {
- Arg::StringValue<char> str = { value, value != 0 ? std::strlen(value) : 0 };
- writer_.write_str(str, spec_);
- }
-
-public:
- ArgFormatterBase(BasicWriter<Char> &w, FormatSpec &s)
- : writer_(w), spec_(s)
- {}
-
- template <typename T>
- void visit_any_int(T value)
- {
- writer_.write_int(value, spec_);
- }
-
- template <typename T>
- void visit_any_double(T value)
- {
- writer_.write_double(value, spec_);
- }
-
- void visit_bool(bool value)
- {
- if (spec_.type_)
- return visit_any_int(value);
- write(value);
- }
-
- void visit_char(int value)
- {
- if (spec_.type_ && spec_.type_ != 'c')
- {
- spec_.flags_ |= CHAR_FLAG;
- writer_.write_int(value, spec_);
- return;
- }
- if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0)
- FMT_THROW(FormatError("invalid format specifier for char"));
- typedef typename BasicWriter<Char>::CharPtr CharPtr;
- Char fill = internal::CharTraits<Char>::cast(spec_.fill());
- CharPtr out = CharPtr();
- const unsigned CHAR_WIDTH = 1;
- if (spec_.width_ > CHAR_WIDTH)
- {
- out = writer_.grow_buffer(spec_.width_);
- if (spec_.align_ == ALIGN_RIGHT)
- {
- std::uninitialized_fill_n(out, spec_.width_ - CHAR_WIDTH, fill);
- out += spec_.width_ - CHAR_WIDTH;
- }
- else if (spec_.align_ == ALIGN_CENTER)
- {
- out = writer_.fill_padding(out, spec_.width_,
- internal::check(CHAR_WIDTH), fill);
- }
- else
- {
- std::uninitialized_fill_n(out + CHAR_WIDTH,
- spec_.width_ - CHAR_WIDTH, fill);
- }
- }
- else
- {
- out = writer_.grow_buffer(CHAR_WIDTH);
- }
- *out = internal::CharTraits<Char>::cast(value);
- }
-
- void visit_cstring(const char *value)
- {
- if (spec_.type_ == 'p')
- return write_pointer(value);
- write(value);
- }
-
- void visit_string(Arg::StringValue<char> value)
- {
- writer_.write_str(value, spec_);
- }
-
- using ArgVisitor<Impl, void>::visit_wstring;
-
- void visit_wstring(Arg::StringValue<Char> value)
- {
- writer_.write_str(value, spec_);
- }
-
- void visit_pointer(const void *value)
- {
- if (spec_.type_ && spec_.type_ != 'p')
- report_unknown_type(spec_.type_, "pointer");
- write_pointer(value);
- }
-};
-
-// An argument formatter.
-template <typename Char>
-class BasicArgFormatter:
- public ArgFormatterBase<BasicArgFormatter<Char>, Char>
-{
-private:
- BasicFormatter<Char> &formatter_;
- const Char *format_;
-
-public:
- BasicArgFormatter(BasicFormatter<Char> &f, FormatSpec &s, const Char *fmt)
- : ArgFormatterBase<BasicArgFormatter<Char>, Char>(f.writer(), s),
- formatter_(f), format_(fmt)
- {}
-
- void visit_custom(Arg::CustomValue c)
- {
- c.format(&formatter_, c.value, &format_);
- }
-};
-
-class FormatterBase
-{
-private:
- ArgList args_;
- int next_arg_index_;
-
- // Returns the argument with specified index.
- FMT_API Arg do_get_arg(unsigned arg_index, const char *&error);
-
-protected:
- const ArgList &args() const
- {
- return args_;
- }
-
- explicit FormatterBase(const ArgList &args)
- {
- args_ = args;
- next_arg_index_ = 0;
- }
-
- // Returns the next argument.
- Arg next_arg(const char *&error)
- {
- if (next_arg_index_ >= 0)
- return do_get_arg(internal::to_unsigned(next_arg_index_++), error);
- error = "cannot switch from manual to automatic argument indexing";
- return Arg();
- }
-
- // Checks if manual indexing is used and returns the argument with
- // specified index.
- Arg get_arg(unsigned arg_index, const char *&error)
- {
- return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg();
- }
-
- bool check_no_auto_index(const char *&error)
- {
- if (next_arg_index_ > 0)
- {
- error = "cannot switch from automatic to manual argument indexing";
- return false;
- }
- next_arg_index_ = -1;
- return true;
- }
-
- template <typename Char>
- void write(BasicWriter<Char> &w, const Char *start, const Char *end)
- {
- if (start != end)
- w << BasicStringRef<Char>(start, internal::to_unsigned(end - start));
- }
-};
-
-// A printf formatter.
-template <typename Char>
-class PrintfFormatter: private FormatterBase
-{
-private:
- void parse_flags(FormatSpec &spec, const Char *&s);
-
- // Returns the argument with specified index or, if arg_index is equal
- // to the maximum unsigned value, the next argument.
- Arg get_arg(const Char *s,
- unsigned arg_index = (std::numeric_limits<unsigned>::max)());
-
- // Parses argument index, flags and width and returns the argument index.
- unsigned parse_header(const Char *&s, FormatSpec &spec);
-
-public:
- explicit PrintfFormatter(const ArgList &args): FormatterBase(args)
- {}
- FMT_API void format(BasicWriter<Char> &writer,
- BasicCStringRef<Char> format_str);
-};
-} // namespace internal
-
-/** This template formats data and writes the output to a writer. */
-template <typename CharType, typename ArgFormatter>
-class BasicFormatter: private internal::FormatterBase
-{
-public:
- /** The character type for the output. */
- typedef CharType Char;
-
-private:
- BasicWriter<Char> &writer_;
- internal::ArgMap<Char> map_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter);
-
- using internal::FormatterBase::get_arg;
-
- // Checks if manual indexing is used and returns the argument with
- // specified name.
- internal::Arg get_arg(BasicStringRef<Char> arg_name, const char *&error);
-
- // Parses argument index and returns corresponding argument.
- internal::Arg parse_arg_index(const Char *&s);
-
- // Parses argument name and returns corresponding argument.
- internal::Arg parse_arg_name(const Char *&s);
-
-public:
- /**
- \rst
- Constructs a ``BasicFormatter`` object. References to the arguments and
- the writer are stored in the formatter object so make sure they have
- appropriate lifetimes.
- \endrst
- */
- BasicFormatter(const ArgList &args, BasicWriter<Char> &w)
- : internal::FormatterBase(args), writer_(w)
- {}
-
- /** Returns a reference to the writer associated with this formatter. */
- BasicWriter<Char> &writer()
- {
- return writer_;
- }
-
- /** Formats stored arguments and writes the output to the writer. */
- void format(BasicCStringRef<Char> format_str);
-
- // Formats a single argument and advances format_str, a format string pointer.
- const Char *format(const Char *&format_str, const internal::Arg &arg);
-};
-
-// Generates a comma-separated list with results of applying f to
-// numbers 0..n-1.
-# define FMT_GEN(n, f) FMT_GEN##n(f)
-# define FMT_GEN1(f) f(0)
-# define FMT_GEN2(f) FMT_GEN1(f), f(1)
-# define FMT_GEN3(f) FMT_GEN2(f), f(2)
-# define FMT_GEN4(f) FMT_GEN3(f), f(3)
-# define FMT_GEN5(f) FMT_GEN4(f), f(4)
-# define FMT_GEN6(f) FMT_GEN5(f), f(5)
-# define FMT_GEN7(f) FMT_GEN6(f), f(6)
-# define FMT_GEN8(f) FMT_GEN7(f), f(7)
-# define FMT_GEN9(f) FMT_GEN8(f), f(8)
-# define FMT_GEN10(f) FMT_GEN9(f), f(9)
-# define FMT_GEN11(f) FMT_GEN10(f), f(10)
-# define FMT_GEN12(f) FMT_GEN11(f), f(11)
-# define FMT_GEN13(f) FMT_GEN12(f), f(12)
-# define FMT_GEN14(f) FMT_GEN13(f), f(13)
-# define FMT_GEN15(f) FMT_GEN14(f), f(14)
-
-namespace internal
-{
-inline uint64_t make_type()
-{
- return 0;
-}
-
-template <typename T>
-inline uint64_t make_type(const T &arg)
-{
- return MakeValue< BasicFormatter<char> >::type(arg);
-}
-
-template <unsigned N, bool/*IsPacked*/ = (N < ArgList::MAX_PACKED_ARGS)>
- struct ArgArray;
-
-template <unsigned N>
-struct ArgArray<N, true/*IsPacked*/>
-{
- typedef Value Type[N > 0 ? N : 1];
-
-template <typename Formatter, typename T>
-static Value make(const T &value)
-{
- Value result = MakeValue<Formatter>(value);
- // Workaround a bug in Apple LLVM version 4.2 (clang-425.0.28) of clang:
- // https://github.com/cppformat/cppformat/issues/276
- (void)result.custom.format;
- return result;
-}
- };
-
-template <unsigned N>
-struct ArgArray<N, false/*IsPacked*/>
-{
- typedef Arg Type[N + 1]; // +1 for the list end Arg::NONE
-
- template <typename Formatter, typename T>
- static Arg make(const T &value)
- {
- return MakeArg<Formatter>(value);
- }
-};
-
-#if FMT_USE_VARIADIC_TEMPLATES
-template <typename Arg, typename... Args>
-inline uint64_t make_type(const Arg &first, const Args & ... tail)
-{
- return make_type(first) | (make_type(tail...) << 4);
-}
-
-#else
-
-struct ArgType
-{
- uint64_t type;
-
- ArgType(): type(0)
- {}
-
- template <typename T>
- ArgType(const T &arg) : type(make_type(arg))
- {}
-};
-
-# define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType()
-
-inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT))
-{
- return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) |
- (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) |
- (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) |
- (t12.type << 48) | (t13.type << 52) | (t14.type << 56);
-}
-#endif
-
-template <class Char>
-class FormatBuf: public std::basic_streambuf<Char>
-{
-private:
- typedef typename std::basic_streambuf<Char>::int_type int_type;
- typedef typename std::basic_streambuf<Char>::traits_type traits_type;
-
- Buffer<Char> &buffer_;
- Char *start_;
-
-public:
- FormatBuf(Buffer<Char> &buffer): buffer_(buffer), start_(&buffer[0])
- {
- this->setp(start_, start_ + buffer_.capacity());
- }
-
- int_type overflow(int_type ch = traits_type::eof())
- {
- if (!traits_type::eq_int_type(ch, traits_type::eof()))
- {
- size_t size = this->size();
- buffer_.resize(size);
- buffer_.reserve(size * 2);
-
- start_ = &buffer_[0];
- start_[size] = traits_type::to_char_type(ch);
- this->setp(start_ + size + 1, start_ + size * 2);
- }
- return ch;
- }
-
- size_t size() const
- {
- return to_unsigned(this->pptr() - start_);
- }
-};
-} // namespace internal
-
-# define FMT_MAKE_TEMPLATE_ARG(n) typename T##n
-# define FMT_MAKE_ARG_TYPE(n) T##n
-# define FMT_MAKE_ARG(n) const T##n &v##n
-# define FMT_ASSIGN_char(n) \
- arr[n] = fmt::internal::MakeValue< fmt::BasicFormatter<char> >(v##n)
-# define FMT_ASSIGN_wchar_t(n) \
- arr[n] = fmt::internal::MakeValue< fmt::BasicFormatter<wchar_t> >(v##n)
-
-#if FMT_USE_VARIADIC_TEMPLATES
-// Defines a variadic function returning void.
-# define FMT_VARIADIC_VOID(func, arg_type) \
- template <typename... Args> \
- void func(arg_type arg0, const Args & ... args) { \
- typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
- typename ArgArray::Type array{ \
- ArgArray::template make<fmt::BasicFormatter<Char> >(args)...}; \
- func(arg0, fmt::ArgList(fmt::internal::make_type(args...), array)); \
- }
-
-// Defines a variadic constructor.
-# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
- template <typename... Args> \
- ctor(arg0_type arg0, arg1_type arg1, const Args & ... args) { \
- typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
- typename ArgArray::Type array{ \
- ArgArray::template make<fmt::BasicFormatter<Char> >(args)...}; \
- func(arg0, arg1, fmt::ArgList(fmt::internal::make_type(args...), array)); \
- }
-
-#else
-
-# define FMT_MAKE_REF(n) \
- fmt::internal::MakeValue< fmt::BasicFormatter<Char> >(v##n)
-# define FMT_MAKE_REF2(n) v##n
-
-// Defines a wrapper for a function taking one argument of type arg_type
-// and n additional arguments of arbitrary types.
-# define FMT_WRAP1(func, arg_type, n) \
- template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
- inline void func(arg_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
- const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
- func(arg1, fmt::ArgList( \
- fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
- }
-
-// Emulates a variadic function returning void on a pre-C++11 compiler.
-# define FMT_VARIADIC_VOID(func, arg_type) \
- inline void func(arg_type arg) { func(arg, fmt::ArgList()); } \
- FMT_WRAP1(func, arg_type, 1) FMT_WRAP1(func, arg_type, 2) \
- FMT_WRAP1(func, arg_type, 3) FMT_WRAP1(func, arg_type, 4) \
- FMT_WRAP1(func, arg_type, 5) FMT_WRAP1(func, arg_type, 6) \
- FMT_WRAP1(func, arg_type, 7) FMT_WRAP1(func, arg_type, 8) \
- FMT_WRAP1(func, arg_type, 9) FMT_WRAP1(func, arg_type, 10)
-
-# define FMT_CTOR(ctor, func, arg0_type, arg1_type, n) \
- template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
- ctor(arg0_type arg0, arg1_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
- const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
- func(arg0, arg1, fmt::ArgList( \
- fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
- }
-
-// Emulates a variadic constructor on a pre-C++11 compiler.
-# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 1) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 2) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 3) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 4) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 5) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 6) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 7) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 8) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 9) \
- FMT_CTOR(ctor, func, arg0_type, arg1_type, 10)
-#endif
-
-// Generates a comma-separated list with results of applying f to pairs
-// (argument, index).
-#define FMT_FOR_EACH1(f, x0) f(x0, 0)
-#define FMT_FOR_EACH2(f, x0, x1) \
- FMT_FOR_EACH1(f, x0), f(x1, 1)
-#define FMT_FOR_EACH3(f, x0, x1, x2) \
- FMT_FOR_EACH2(f, x0 ,x1), f(x2, 2)
-#define FMT_FOR_EACH4(f, x0, x1, x2, x3) \
- FMT_FOR_EACH3(f, x0, x1, x2), f(x3, 3)
-#define FMT_FOR_EACH5(f, x0, x1, x2, x3, x4) \
- FMT_FOR_EACH4(f, x0, x1, x2, x3), f(x4, 4)
-#define FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5) \
- FMT_FOR_EACH5(f, x0, x1, x2, x3, x4), f(x5, 5)
-#define FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6) \
- FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5), f(x6, 6)
-#define FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7) \
- FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6), f(x7, 7)
-#define FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8) \
- FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7), f(x8, 8)
-#define FMT_FOR_EACH10(f, x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) \
- FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8), f(x9, 9)
-
-/**
-An error returned by an operating system or a language runtime,
-for example a file opening error.
-*/
-class SystemError: public internal::RuntimeError
-{
-private:
- void init(int err_code, CStringRef format_str, ArgList args);
-
-protected:
- int error_code_;
-
- typedef char Char; // For FMT_VARIADIC_CTOR.
-
- SystemError()
- {}
-
-public:
- /**
- \rst
- Constructs a :class:`fmt::SystemError` object with the description
- of the form
-
- .. parsed-literal::
- *<message>*: *<system-message>*
-
- where *<message>* is the formatted message and *<system-message>* is
- the system message corresponding to the error code.
- *error_code* is a system error code as given by ``errno``.
- If *error_code* is not a valid error code such as -1, the system message
- may look like "Unknown error -1" and is platform-dependent.
-
- **Example**::
-
- // This throws a SystemError with the description
- // cannot open file 'madeup': No such file or directory
- // or similar (system message may vary).
- const char *filename = "madeup";
- std::FILE *file = std::fopen(filename, "r");
- if (!file)
- throw fmt::SystemError(errno, "cannot open file '{}'", filename);
- \endrst
- */
- SystemError(int error_code, CStringRef message)
- {
- init(error_code, message, ArgList());
- }
- FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef)
-
- int error_code() const
- {
- return error_code_;
- }
-};
-
-/**
-\rst
-This template provides operations for formatting and writing data into
-a character stream. The output is stored in a buffer provided by a subclass
-such as :class:`fmt::BasicMemoryWriter`.
-
-You can use one of the following typedefs for common character types:
-
-+---------+----------------------+
-| Type | Definition |
-+=========+======================+
-| Writer | BasicWriter<char> |
-+---------+----------------------+
-| WWriter | BasicWriter<wchar_t> |
-+---------+----------------------+
-
-\endrst
-*/
-template <typename Char>
-class BasicWriter
-{
-private:
- // Output buffer.
- Buffer<Char> &buffer_;
-
- FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter);
-
- typedef typename internal::CharTraits<Char>::CharPtr CharPtr;
-
-#if FMT_SECURE_SCL
- // Returns pointer value.
- static Char *get(CharPtr p)
- {
- return p.base();
- }
-#else
- static Char *get(Char *p)
- {
- return p;
- }
-#endif
-
- // Fills the padding around the content and returns the pointer to the
- // content area.
- static CharPtr fill_padding(CharPtr buffer,
- unsigned total_size, std::size_t content_size, wchar_t fill);
-
- // Grows the buffer by n characters and returns a pointer to the newly
- // allocated area.
- CharPtr grow_buffer(std::size_t n)
- {
- std::size_t size = buffer_.size();
- buffer_.resize(size + n);
- return internal::make_ptr(&buffer_[size], n);
- }
-
- // Writes an unsigned decimal integer.
- template <typename UInt>
- Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0)
- {
- unsigned num_digits = internal::count_digits(value);
- Char *ptr = get(grow_buffer(prefix_size + num_digits));
- internal::format_decimal(ptr + prefix_size, value, num_digits);
- return ptr;
- }
-
- // Writes a decimal integer.
- template <typename Int>
- void write_decimal(Int value)
- {
- typedef typename internal::IntTraits<Int>::MainType MainType;
- MainType abs_value = static_cast<MainType>(value);
- if (internal::is_negative(value))
- {
- abs_value = 0 - abs_value;
- *write_unsigned_decimal(abs_value, 1) = '-';
- }
- else
- {
- write_unsigned_decimal(abs_value, 0);
- }
- }
-
- // Prepare a buffer for integer formatting.
- CharPtr prepare_int_buffer(unsigned num_digits,
- const EmptySpec &, const char *prefix, unsigned prefix_size)
- {
- unsigned size = prefix_size + num_digits;
- CharPtr p = grow_buffer(size);
- std::uninitialized_copy(prefix, prefix + prefix_size, p);
- return p + size - 1;
- }
-
- template <typename Spec>
- CharPtr prepare_int_buffer(unsigned num_digits,
- const Spec &spec, const char *prefix, unsigned prefix_size);
-
- // Formats an integer.
- template <typename T, typename Spec>
- void write_int(T value, Spec spec);
-
- // Formats a floating-point number (double or long double).
- template <typename T>
- void write_double(T value, const FormatSpec &spec);
-
- // Writes a formatted string.
- template <typename StrChar>
- CharPtr write_str(const StrChar *s, std::size_t size, const AlignSpec &spec);
-
- template <typename StrChar>
- void write_str(const internal::Arg::StringValue<StrChar> &str,
- const FormatSpec &spec);
-
- // This following methods are private to disallow writing wide characters
- // and strings to a char stream. If you want to print a wide string as a
- // pointer as std::ostream does, cast it to const void*.
- // Do not implement!
- void operator<<(typename internal::WCharHelper<wchar_t, Char>::Unsupported);
- void operator<<(
- typename internal::WCharHelper<const wchar_t *, Char>::Unsupported);
-
- // Appends floating-point length specifier to the format string.
- // The second argument is only used for overload resolution.
- void append_float_length(Char *&format_ptr, long double)
- {
- *format_ptr++ = 'L';
- }
-
- template<typename T>
- void append_float_length(Char *&, T)
- {}
-
- template <typename Impl, typename Char_>
- friend class internal::ArgFormatterBase;
-
- friend class internal::PrintfArgFormatter<Char>;
-
-protected:
- /**
- Constructs a ``BasicWriter`` object.
- */
- explicit BasicWriter(Buffer<Char> &b): buffer_(b)
- {}
-
-public:
- /**
- \rst
- Destroys a ``BasicWriter`` object.
- \endrst
- */
- virtual ~BasicWriter()
- {}
-
- /**
- Returns the total number of characters written.
- */
- std::size_t size() const
- {
- return buffer_.size();
- }
-
- /**
- Returns a pointer to the output buffer content. No terminating null
- character is appended.
- */
- const Char *data() const FMT_NOEXCEPT
- {
- return &buffer_[0];
- }
-
- /**
- Returns a pointer to the output buffer content with terminating null
- character appended.
- */
- const Char *c_str() const
- {
- std::size_t size = buffer_.size();
- buffer_.reserve(size + 1);
- buffer_[size] = '\0';
- return &buffer_[0];
- }
-
- /**
- \rst
- Returns the content of the output buffer as an `std::string`.
- \endrst
- */
- std::basic_string<Char> str() const
- {
- return std::basic_string<Char>(&buffer_[0], buffer_.size());
- }
-
- /**
- \rst
- Writes formatted data.
-
- *args* is an argument list representing arbitrary arguments.
-
- **Example**::
-
- MemoryWriter out;
- out.write("Current point:\n");
- out.write("({:+f}, {:+f})", -3.14, 3.14);
-
- This will write the following output to the ``out`` object:
-
- .. code-block:: none
-
- Current point:
- (-3.140000, +3.140000)
-
- The output can be accessed using :func:`data()`, :func:`c_str` or
- :func:`str` methods.
-
- See also :ref:`syntax`.
- \endrst
- */
- void write(BasicCStringRef<Char> format, ArgList args)
- {
- BasicFormatter<Char>(args, *this).format(format);
- }
- FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
-
- BasicWriter &operator<<(int value)
- {
- write_decimal(value);
- return *this;
- }
- BasicWriter &operator<<(unsigned value)
- {
- return *this << IntFormatSpec<unsigned>(value);
- }
- BasicWriter &operator<<(long value)
- {
- write_decimal(value);
- return *this;
- }
- BasicWriter &operator<<(unsigned long value)
- {
- return *this << IntFormatSpec<unsigned long>(value);
- }
- BasicWriter &operator<<(LongLong value)
- {
- write_decimal(value);
- return *this;
- }
-
- /**
- \rst
- Formats *value* and writes it to the stream.
- \endrst
- */
- BasicWriter &operator<<(ULongLong value)
- {
- return *this << IntFormatSpec<ULongLong>(value);
- }
-
- BasicWriter &operator<<(double value)
- {
- write_double(value, FormatSpec());
- return *this;
- }
-
- /**
- \rst
- Formats *value* using the general format for floating-point numbers
- (``'g'``) and writes it to the stream.
- \endrst
- */
- BasicWriter &operator<<(long double value)
- {
- write_double(value, FormatSpec());
- return *this;
- }
-
- /**
- Writes a character to the stream.
- */
- BasicWriter &operator<<(char value)
- {
- buffer_.push_back(value);
- return *this;
- }
-
- BasicWriter &operator<<(
- typename internal::WCharHelper<wchar_t, Char>::Supported value)
- {
- buffer_.push_back(value);
- return *this;
- }
-
- /**
- \rst
- Writes *value* to the stream.
- \endrst
- */
- BasicWriter &operator<<(fmt::BasicStringRef<Char> value)
- {
- const Char *str = value.data();
- buffer_.append(str, str + value.size());
- return *this;
- }
-
- BasicWriter &operator<<(
- typename internal::WCharHelper<StringRef, Char>::Supported value)
- {
- const char *str = value.data();
- buffer_.append(str, str + value.size());
- return *this;
- }
-
- template <typename T, typename Spec, typename FillChar>
- BasicWriter &operator<<(IntFormatSpec<T, Spec, FillChar> spec)
- {
- internal::CharTraits<Char>::convert(FillChar());
- write_int(spec.value(), spec);
- return *this;
- }
-
- template <typename StrChar>
- BasicWriter &operator<<(const StrFormatSpec<StrChar> &spec)
- {
- const StrChar *s = spec.str();
- write_str(s, std::char_traits<Char>::length(s), spec);
- return *this;
- }
-
- void clear() FMT_NOEXCEPT
- {
- buffer_.clear();
- }
-};
-
-template <typename Char>
-template <typename StrChar>
-typename BasicWriter<Char>::CharPtr BasicWriter<Char>::write_str(
- const StrChar *s, std::size_t size, const AlignSpec &spec)
-{
- CharPtr out = CharPtr();
- if (spec.width() > size)
- {
- out = grow_buffer(spec.width());
- Char fill = internal::CharTraits<Char>::cast(spec.fill());
- if (spec.align() == ALIGN_RIGHT)
- {
- std::uninitialized_fill_n(out, spec.width() - size, fill);
- out += spec.width() - size;
- }
- else if (spec.align() == ALIGN_CENTER)
- {
- out = fill_padding(out, spec.width(), size, fill);
- }
- else
- {
- std::uninitialized_fill_n(out + size, spec.width() - size, fill);
- }
- }
- else
- {
- out = grow_buffer(size);
- }
- std::uninitialized_copy(s, s + size, out);
- return out;
-}
-
-template <typename Char>
-template <typename StrChar>
-void BasicWriter<Char>::write_str(
- const internal::Arg::StringValue<StrChar> &s, const FormatSpec &spec)
-{
- // Check if StrChar is convertible to Char.
- internal::CharTraits<Char>::convert(StrChar());
- if (spec.type_ && spec.type_ != 's')
- internal::report_unknown_type(spec.type_, "string");
- const StrChar *str_value = s.value;
- std::size_t str_size = s.size;
- if (str_size == 0)
- {
- if (!str_value)
- {
- FMT_THROW(FormatError("string pointer is null"));
- return;
- }
- }
- std::size_t precision = static_cast<std::size_t>(spec.precision_);
- if (spec.precision_ >= 0 && precision < str_size)
- str_size = precision;
- write_str(str_value, str_size, spec);
-}
-
-template <typename Char>
-typename BasicWriter<Char>::CharPtr
-BasicWriter<Char>::fill_padding(
- CharPtr buffer, unsigned total_size,
- std::size_t content_size, wchar_t fill)
-{
- std::size_t padding = total_size - content_size;
- std::size_t left_padding = padding / 2;
- Char fill_char = internal::CharTraits<Char>::cast(fill);
- std::uninitialized_fill_n(buffer, left_padding, fill_char);
- buffer += left_padding;
- CharPtr content = buffer;
- std::uninitialized_fill_n(buffer + content_size,
- padding - left_padding, fill_char);
- return content;
-}
-
-template <typename Char>
-template <typename Spec>
-typename BasicWriter<Char>::CharPtr
-BasicWriter<Char>::prepare_int_buffer(
- unsigned num_digits, const Spec &spec,
- const char *prefix, unsigned prefix_size)
-{
- unsigned width = spec.width();
- Alignment align = spec.align();
- Char fill = internal::CharTraits<Char>::cast(spec.fill());
- if (spec.precision() > static_cast<int>(num_digits))
- {
- // Octal prefix '0' is counted as a digit, so ignore it if precision
- // is specified.
- if (prefix_size > 0 && prefix[prefix_size - 1] == '0')
- --prefix_size;
- unsigned number_size =
- prefix_size + internal::to_unsigned(spec.precision());
- AlignSpec subspec(number_size, '0', ALIGN_NUMERIC);
- if (number_size >= width)
- return prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
- buffer_.reserve(width);
- unsigned fill_size = width - number_size;
- if (align != ALIGN_LEFT)
- {
- CharPtr p = grow_buffer(fill_size);
- std::uninitialized_fill(p, p + fill_size, fill);
- }
- CharPtr result = prepare_int_buffer(
- num_digits, subspec, prefix, prefix_size);
- if (align == ALIGN_LEFT)
- {
- CharPtr p = grow_buffer(fill_size);
- std::uninitialized_fill(p, p + fill_size, fill);
- }
- return result;
- }
- unsigned size = prefix_size + num_digits;
- if (width <= size)
- {
- CharPtr p = grow_buffer(size);
- std::uninitialized_copy(prefix, prefix + prefix_size, p);
- return p + size - 1;
- }
- CharPtr p = grow_buffer(width);
- CharPtr end = p + width;
- if (align == ALIGN_LEFT)
- {
- std::uninitialized_copy(prefix, prefix + prefix_size, p);
- p += size;
- std::uninitialized_fill(p, end, fill);
- }
- else if (align == ALIGN_CENTER)
- {
- p = fill_padding(p, width, size, fill);
- std::uninitialized_copy(prefix, prefix + prefix_size, p);
- p += size;
- }
- else
- {
- if (align == ALIGN_NUMERIC)
- {
- if (prefix_size != 0)
- {
- p = std::uninitialized_copy(prefix, prefix + prefix_size, p);
- size -= prefix_size;
- }
- }
- else
- {
- std::uninitialized_copy(prefix, prefix + prefix_size, end - size);
- }
- std::uninitialized_fill(p, end - size, fill);
- p = end;
- }
- return p - 1;
-}
-
-template <typename Char>
-template <typename T, typename Spec>
-void BasicWriter<Char>::write_int(T value, Spec spec)
-{
- unsigned prefix_size = 0;
- typedef typename internal::IntTraits<T>::MainType UnsignedType;
- UnsignedType abs_value = static_cast<UnsignedType>(value);
- char prefix[4] = "";
- if (internal::is_negative(value))
- {
- prefix[0] = '-';
- ++prefix_size;
- abs_value = 0 - abs_value;
- }
- else if (spec.flag(SIGN_FLAG))
- {
- prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' ';
- ++prefix_size;
- }
- switch (spec.type())
- {
- case 0:
- case 'd':
- {
- unsigned num_digits = internal::count_digits(abs_value);
- CharPtr p = prepare_int_buffer(
- num_digits, spec, prefix, prefix_size) + 1 - num_digits;
- internal::format_decimal(get(p), abs_value, num_digits);
- break;
- }
- case 'x':
- case 'X':
- {
- UnsignedType n = abs_value;
- if (spec.flag(HASH_FLAG))
- {
- prefix[prefix_size++] = '0';
- prefix[prefix_size++] = spec.type();
- }
- unsigned num_digits = 0;
- do
- {
- ++num_digits;
- }
- while ((n >>= 4) != 0);
- Char *p = get(prepare_int_buffer(
- num_digits, spec, prefix, prefix_size));
- n = abs_value;
- const char *digits = spec.type() == 'x' ?
- "0123456789abcdef" : "0123456789ABCDEF";
- do
- {
- *p-- = digits[n & 0xf];
- }
- while ((n >>= 4) != 0);
- break;
- }
- case 'b':
- case 'B':
- {
- UnsignedType n = abs_value;
- if (spec.flag(HASH_FLAG))
- {
- prefix[prefix_size++] = '0';
- prefix[prefix_size++] = spec.type();
- }
- unsigned num_digits = 0;
- do
- {
- ++num_digits;
- }
- while ((n >>= 1) != 0);
- Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
- n = abs_value;
- do
- {
- *p-- = static_cast<Char>('0' + (n & 1));
- }
- while ((n >>= 1) != 0);
- break;
- }
- case 'o':
- {
- UnsignedType n = abs_value;
- if (spec.flag(HASH_FLAG))
- prefix[prefix_size++] = '0';
- unsigned num_digits = 0;
- do
- {
- ++num_digits;
- }
- while ((n >>= 3) != 0);
- Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
- n = abs_value;
- do
- {
- *p-- = static_cast<Char>('0' + (n & 7));
- }
- while ((n >>= 3) != 0);
- break;
- }
- default:
- internal::report_unknown_type(
- spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer");
- break;
- }
-}
-
-template <typename Char>
-template <typename T>
-void BasicWriter<Char>::write_double(T value, const FormatSpec &spec)
-{
- // Check type.
- char type = spec.type();
- bool upper = false;
- switch (type)
- {
- case 0:
- type = 'g';
- break;
- case 'e':
- case 'f':
- case 'g':
- case 'a':
- break;
- case 'F':
-#ifdef _MSC_VER
- // MSVC's printf doesn't support 'F'.
- type = 'f';
-#endif
- // Fall through.
- case 'E':
- case 'G':
- case 'A':
- upper = true;
- break;
- default:
- internal::report_unknown_type(type, "double");
- break;
- }
-
- char sign = 0;
- // Use isnegative instead of value < 0 because the latter is always
- // false for NaN.
- if (internal::FPUtil::isnegative(static_cast<double>(value)))
- {
- sign = '-';
- value = -value;
- }
- else if (spec.flag(SIGN_FLAG))
- {
- sign = spec.flag(PLUS_FLAG) ? '+' : ' ';
- }
-
- if (internal::FPUtil::isnotanumber(value))
- {
- // Format NaN ourselves because sprintf's output is not consistent
- // across platforms.
- std::size_t nan_size = 4;
- const char *nan = upper ? " NAN" : " nan";
- if (!sign)
- {
- --nan_size;
- ++nan;
- }
- CharPtr out = write_str(nan, nan_size, spec);
- if (sign)
- *out = sign;
- return;
- }
-
- if (internal::FPUtil::isinfinity(value))
- {
- // Format infinity ourselves because sprintf's output is not consistent
- // across platforms.
- std::size_t inf_size = 4;
- const char *inf = upper ? " INF" : " inf";
- if (!sign)
- {
- --inf_size;
- ++inf;
- }
- CharPtr out = write_str(inf, inf_size, spec);
- if (sign)
- *out = sign;
- return;
- }
-
- std::size_t offset = buffer_.size();
- unsigned width = spec.width();
- if (sign)
- {
- buffer_.reserve(buffer_.size() + (width > 1u ? width : 1u));
- if (width > 0)
- --width;
- ++offset;
- }
-
- // Build format string.
- enum
- {
- MAX_FORMAT_SIZE = 10
- }; // longest format: %#-*.*Lg
- Char format[MAX_FORMAT_SIZE];
- Char *format_ptr = format;
- *format_ptr++ = '%';
- unsigned width_for_sprintf = width;
- if (spec.flag(HASH_FLAG))
- *format_ptr++ = '#';
- if (spec.align() == ALIGN_CENTER)
- {
- width_for_sprintf = 0;
- }
- else
- {
- if (spec.align() == ALIGN_LEFT)
- *format_ptr++ = '-';
- if (width != 0)
- *format_ptr++ = '*';
- }
- if (spec.precision() >= 0)
- {
- *format_ptr++ = '.';
- *format_ptr++ = '*';
- }
-
- append_float_length(format_ptr, value);
- *format_ptr++ = type;
- *format_ptr = '\0';
-
- // Format using snprintf.
- Char fill = internal::CharTraits<Char>::cast(spec.fill());
- unsigned n = 0;
- Char *start = 0;
- for (;;)
- {
- std::size_t buffer_size = buffer_.capacity() - offset;
-#ifdef _MSC_VER
- // MSVC's vsnprintf_s doesn't work with zero size, so reserve
- // space for at least one extra character to make the size non-zero.
- // Note that the buffer's capacity will increase by more than 1.
- if (buffer_size == 0)
- {
- buffer_.reserve(offset + 1);
- buffer_size = buffer_.capacity() - offset;
- }
-#endif
- start = &buffer_[offset];
- int result = internal::CharTraits<Char>::format_float(
- start, buffer_size, format, width_for_sprintf, spec.precision(), value);
- if (result >= 0)
- {
- n = internal::to_unsigned(result);
- if (offset + n < buffer_.capacity())
- break; // The buffer is large enough - continue with formatting.
- buffer_.reserve(offset + n + 1);
- }
- else
- {
- // If result is negative we ask to increase the capacity by at least 1,
- // but as std::vector, the buffer grows exponentially.
- buffer_.reserve(buffer_.capacity() + 1);
- }
- }
- if (sign)
- {
- if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) ||
- *start != ' ')
- {
- *(start - 1) = sign;
- sign = 0;
- }
- else
- {
- *(start - 1) = fill;
- }
- ++n;
- }
- if (spec.align() == ALIGN_CENTER && spec.width() > n)
- {
- width = spec.width();
- CharPtr p = grow_buffer(width);
- std::memmove(get(p) + (width - n) / 2, get(p), n * sizeof(Char));
- fill_padding(p, spec.width(), n, fill);
- return;
- }
- if (spec.fill() != ' ' || sign)
- {
- while (*start == ' ')
- *start++ = fill;
- if (sign)
- *(start - 1) = sign;
- }
- grow_buffer(n);
-}
-
-/**
-\rst
-This class template provides operations for formatting and writing data
-into a character stream. The output is stored in a memory buffer that grows
-dynamically.
-
-You can use one of the following typedefs for common character types
-and the standard allocator:
-
-+---------------+-----------------------------------------------------+
-| Type | Definition |
-+===============+=====================================================+
-| MemoryWriter | BasicMemoryWriter<char, std::allocator<char>> |
-+---------------+-----------------------------------------------------+
-| WMemoryWriter | BasicMemoryWriter<wchar_t, std::allocator<wchar_t>> |
-+---------------+-----------------------------------------------------+
-
-**Example**::
-
-MemoryWriter out;
-out << "The answer is " << 42 << "\n";
-out.write("({:+f}, {:+f})", -3.14, 3.14);
-
-This will write the following output to the ``out`` object:
-
-.. code-block:: none
-
-The answer is 42
-(-3.140000, +3.140000)
-
-The output can be converted to an ``std::string`` with ``out.str()`` or
-accessed as a C string with ``out.c_str()``.
-\endrst
-*/
-template <typename Char, typename Allocator = std::allocator<Char> >
-class BasicMemoryWriter: public BasicWriter<Char>
-{
-private:
- internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE, Allocator> buffer_;
-
-public:
- explicit BasicMemoryWriter(const Allocator& alloc = Allocator())
- : BasicWriter<Char>(buffer_), buffer_(alloc)
- {}
-
-#if FMT_USE_RVALUE_REFERENCES
- /**
- \rst
- Constructs a :class:`fmt::BasicMemoryWriter` object moving the content
- of the other object to it.
- \endrst
- */
- BasicMemoryWriter(BasicMemoryWriter &&other)
- : BasicWriter<Char>(buffer_), buffer_(std::move(other.buffer_))
- {}
-
- /**
- \rst
- Moves the content of the other ``BasicMemoryWriter`` object to this one.
- \endrst
- */
- BasicMemoryWriter &operator=(BasicMemoryWriter &&other)
- {
- buffer_ = std::move(other.buffer_);
- return *this;
- }
-#endif
-};
-
-typedef BasicMemoryWriter<char> MemoryWriter;
-typedef BasicMemoryWriter<wchar_t> WMemoryWriter;
-
-/**
-\rst
-This class template provides operations for formatting and writing data
-into a fixed-size array. For writing into a dynamically growing buffer
-use :class:`fmt::BasicMemoryWriter`.
-
-Any write method will throw ``std::runtime_error`` if the output doesn't fit
-into the array.
-
-You can use one of the following typedefs for common character types:
-
-+--------------+---------------------------+
-| Type | Definition |
-+==============+===========================+
-| ArrayWriter | BasicArrayWriter<char> |
-+--------------+---------------------------+
-| WArrayWriter | BasicArrayWriter<wchar_t> |
-+--------------+---------------------------+
-\endrst
-*/
-template <typename Char>
-class BasicArrayWriter: public BasicWriter<Char>
-{
-private:
- internal::FixedBuffer<Char> buffer_;
-
-public:
- /**
- \rst
- Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
- given size.
- \endrst
- */
- BasicArrayWriter(Char *array, std::size_t size)
- : BasicWriter<Char>(buffer_), buffer_(array, size)
- {}
-
- /**
- \rst
- Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
- size known at compile time.
- \endrst
- */
- template <std::size_t SIZE>
- explicit BasicArrayWriter(Char(&array)[SIZE])
- : BasicWriter<Char>(buffer_), buffer_(array, SIZE)
- {}
-};
-
-typedef BasicArrayWriter<char> ArrayWriter;
-typedef BasicArrayWriter<wchar_t> WArrayWriter;
-
-// Formats a value.
-template <typename Char, typename T>
-void format(BasicFormatter<Char> &f, const Char *&format_str, const T &value)
-{
- internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE> buffer;
-
- internal::FormatBuf<Char> format_buf(buffer);
- std::basic_ostream<Char> output(&format_buf);
- output << value;
-
- BasicStringRef<Char> str(&buffer[0], format_buf.size());
- typedef internal::MakeArg< BasicFormatter<Char> > MakeArg;
- format_str = f.format(format_str, MakeArg(str));
-}
-
-// Reports a system error without throwing an exception.
-// Can be used to report errors from destructors.
-FMT_API void report_system_error(int error_code,
- StringRef message) FMT_NOEXCEPT;
-
-#if FMT_USE_WINDOWS_H
-
-/** A Windows error. */
-class WindowsError: public SystemError
-{
-private:
- FMT_API void init(int error_code, CStringRef format_str, ArgList args);
-
-public:
- /**
- \rst
- Constructs a :class:`fmt::WindowsError` object with the description
- of the form
-
- .. parsed-literal::
- *<message>*: *<system-message>*
-
- where *<message>* is the formatted message and *<system-message>* is the
- system message corresponding to the error code.
- *error_code* is a Windows error code as given by ``GetLastError``.
- If *error_code* is not a valid error code such as -1, the system message
- will look like "error -1".
-
- **Example**::
-
- // This throws a WindowsError with the description
- // cannot open file 'madeup': The system cannot find the file specified.
- // or similar (system message may vary).
- const char *filename = "madeup";
- LPOFSTRUCT of = LPOFSTRUCT();
- HFILE file = OpenFile(filename, &of, OF_READ);
- if (file == HFILE_ERROR) {
- throw fmt::WindowsError(GetLastError(),
- "cannot open file '{}'", filename);
- }
- \endrst
- */
- WindowsError(int error_code, CStringRef message)
- {
- init(error_code, message, ArgList());
- }
- FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef)
-};
-
-// Reports a Windows error without throwing an exception.
-// Can be used to report errors from destructors.
-FMT_API void report_windows_error(int error_code,
- StringRef message) FMT_NOEXCEPT;
-
-#endif
-
-enum Color
-{
- BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE
-};
-
-/**
-Formats a string and prints it to stdout using ANSI escape sequences
-to specify color (experimental).
-Example:
-print_colored(fmt::RED, "Elapsed time: {0:.2f} seconds", 1.23);
-*/
-FMT_API void print_colored(Color c, CStringRef format, ArgList args);
-
-/**
-\rst
-Formats arguments and returns the result as a string.
-
-**Example**::
-
-std::string message = format("The answer is {}", 42);
-\endrst
-*/
-inline std::string format(CStringRef format_str, ArgList args)
-{
- MemoryWriter w;
- w.write(format_str, args);
- return w.str();
-}
-
-inline std::wstring format(WCStringRef format_str, ArgList args)
-{
- WMemoryWriter w;
- w.write(format_str, args);
- return w.str();
-}
-
-/**
-\rst
-Prints formatted data to the file *f*.
-
-**Example**::
-
-print(stderr, "Don't {}!", "panic");
-\endrst
-*/
-FMT_API void print(std::FILE *f, CStringRef format_str, ArgList args);
-
-/**
-\rst
-Prints formatted data to ``stdout``.
-
-**Example**::
-
-print("Elapsed time: {0:.2f} seconds", 1.23);
-\endrst
-*/
-FMT_API void print(CStringRef format_str, ArgList args);
-
-template <typename Char>
-void printf(BasicWriter<Char> &w, BasicCStringRef<Char> format, ArgList args)
-{
- internal::PrintfFormatter<Char>(args).format(w, format);
-}
-
-/**
-\rst
-Formats arguments and returns the result as a string.
-
-**Example**::
-
-std::string message = fmt::sprintf("The answer is %d", 42);
-\endrst
-*/
-inline std::string sprintf(CStringRef format, ArgList args)
-{
- MemoryWriter w;
- printf(w, format, args);
- return w.str();
-}
-
-inline std::wstring sprintf(WCStringRef format, ArgList args)
-{
- WMemoryWriter w;
- printf(w, format, args);
- return w.str();
-}
-
-/**
-\rst
-Prints formatted data to the file *f*.
-
-**Example**::
-
-fmt::fprintf(stderr, "Don't %s!", "panic");
-\endrst
-*/
-FMT_API int fprintf(std::FILE *f, CStringRef format, ArgList args);
-
-/**
-\rst
-Prints formatted data to ``stdout``.
-
-**Example**::
-
-fmt::printf("Elapsed time: %.2f seconds", 1.23);
-\endrst
-*/
-inline int printf(CStringRef format, ArgList args)
-{
- return fprintf(stdout, format, args);
-}
-
-/**
-Fast integer formatter.
-*/
-class FormatInt
-{
-private:
- // Buffer should be large enough to hold all digits (digits10 + 1),
- // a sign and a null character.
- enum
- {
- BUFFER_SIZE = std::numeric_limits<ULongLong>::digits10 + 3
- };
- mutable char buffer_[BUFFER_SIZE];
- char *str_;
-
- // Formats value in reverse and returns the number of digits.
- char *format_decimal(ULongLong value)
- {
- char *buffer_end = buffer_ + BUFFER_SIZE - 1;
- while (value >= 100)
- {
- // Integer division is slow so do it for a group of two digits instead
- // of for every digit. The idea comes from the talk by Alexandrescu
- // "Three Optimization Tips for C++". See speed-test for a comparison.
- unsigned index = static_cast<unsigned>((value % 100) * 2);
- value /= 100;
- *--buffer_end = internal::Data::DIGITS[index + 1];
- *--buffer_end = internal::Data::DIGITS[index];
- }
- if (value < 10)
- {
- *--buffer_end = static_cast<char>('0' + value);
- return buffer_end;
- }
- unsigned index = static_cast<unsigned>(value * 2);
- *--buffer_end = internal::Data::DIGITS[index + 1];
- *--buffer_end = internal::Data::DIGITS[index];
- return buffer_end;
- }
-
- void FormatSigned(LongLong value)
- {
- ULongLong abs_value = static_cast<ULongLong>(value);
- bool negative = value < 0;
- if (negative)
- abs_value = 0 - abs_value;
- str_ = format_decimal(abs_value);
- if (negative)
- *--str_ = '-';
- }
-
-public:
- explicit FormatInt(int value)
- {
- FormatSigned(value);
- }
- explicit FormatInt(long value)
- {
- FormatSigned(value);
- }
- explicit FormatInt(LongLong value)
- {
- FormatSigned(value);
- }
- explicit FormatInt(unsigned value): str_(format_decimal(value))
- {}
- explicit FormatInt(unsigned long value): str_(format_decimal(value))
- {}
- explicit FormatInt(ULongLong value): str_(format_decimal(value))
- {}
-
- /** Returns the number of characters written to the output buffer. */
- std::size_t size() const
- {
- return internal::to_unsigned(buffer_ - str_ + BUFFER_SIZE - 1);
- }
-
- /**
- Returns a pointer to the output buffer content. No terminating null
- character is appended.
- */
- const char *data() const
- {
- return str_;
- }
-
- /**
- Returns a pointer to the output buffer content with terminating null
- character appended.
- */
- const char *c_str() const
- {
- buffer_[BUFFER_SIZE - 1] = '\0';
- return str_;
- }
-
- /**
- \rst
- Returns the content of the output buffer as an ``std::string``.
- \endrst
- */
- std::string str() const
- {
- return std::string(str_, size());
- }
-};
-
-// Formats a decimal integer value writing into buffer and returns
-// a pointer to the end of the formatted string. This function doesn't
-// write a terminating null character.
-template <typename T>
-inline void format_decimal(char *&buffer, T value)
-{
- typedef typename internal::IntTraits<T>::MainType MainType;
- MainType abs_value = static_cast<MainType>(value);
- if (internal::is_negative(value))
- {
- *buffer++ = '-';
- abs_value = 0 - abs_value;
- }
- if (abs_value < 100)
- {
- if (abs_value < 10)
- {
- *buffer++ = static_cast<char>('0' + abs_value);
- return;
- }
- unsigned index = static_cast<unsigned>(abs_value * 2);
- *buffer++ = internal::Data::DIGITS[index];
- *buffer++ = internal::Data::DIGITS[index + 1];
- return;
- }
- unsigned num_digits = internal::count_digits(abs_value);
- internal::format_decimal(buffer, abs_value, num_digits);
- buffer += num_digits;
-}
-
-/**
-\rst
-Returns a named argument for formatting functions.
-
-**Example**::
-
-print("Elapsed time: {s:.2f} seconds", arg("s", 1.23));
-
-\endrst
-*/
-template <typename T>
-inline internal::NamedArg<char> arg(StringRef name, const T &arg)
-{
- return internal::NamedArg<char>(name, arg);
-}
-
-template <typename T>
-inline internal::NamedArg<wchar_t> arg(WStringRef name, const T &arg)
-{
- return internal::NamedArg<wchar_t>(name, arg);
-}
-
-// The following two functions are deleted intentionally to disable
-// nested named arguments as in ``format("{}", arg("a", arg("b", 42)))``.
-template <typename Char>
-void arg(StringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
-template <typename Char>
-void arg(WStringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
-}
-
-#if FMT_GCC_VERSION
-// Use the system_header pragma to suppress warnings about variadic macros
-// because suppressing -Wvariadic-macros with the diagnostic pragma doesn't
-// work. It is used at the end because we want to suppress as little warnings
-// as possible.
-# pragma GCC system_header
-#endif
-
-// This is used to work around VC++ bugs in handling variadic macros.
-#define FMT_EXPAND(args) args
-
-// Returns the number of arguments.
-// Based on https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s.
-#define FMT_NARG(...) FMT_NARG_(__VA_ARGS__, FMT_RSEQ_N())
-#define FMT_NARG_(...) FMT_EXPAND(FMT_ARG_N(__VA_ARGS__))
-#define FMT_ARG_N(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
-#define FMT_RSEQ_N() 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
-
-#define FMT_CONCAT(a, b) a##b
-#define FMT_FOR_EACH_(N, f, ...) \
- FMT_EXPAND(FMT_CONCAT(FMT_FOR_EACH, N)(f, __VA_ARGS__))
-#define FMT_FOR_EACH(f, ...) \
- FMT_EXPAND(FMT_FOR_EACH_(FMT_NARG(__VA_ARGS__), f, __VA_ARGS__))
-
-#define FMT_ADD_ARG_NAME(type, index) type arg##index
-#define FMT_GET_ARG_NAME(type, index) arg##index
-
-#if FMT_USE_VARIADIC_TEMPLATES
-# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \
- template <typename... Args> \
- ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \
- const Args & ... args) { \
- typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
- typename ArgArray::Type array{ \
- ArgArray::template make<fmt::BasicFormatter<Char> >(args)...}; \
- call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), \
- fmt::ArgList(fmt::internal::make_type(args...), array)); \
- }
-#else
-// Defines a wrapper for a function taking __VA_ARGS__ arguments
-// and n additional arguments of arbitrary types.
-# define FMT_WRAP(Char, ReturnType, func, call, n, ...) \
- template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
- inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \
- FMT_GEN(n, FMT_MAKE_ARG)) { \
- fmt::internal::ArgArray<n>::Type arr; \
- FMT_GEN(n, FMT_ASSIGN_##Char); \
- call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList( \
- fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), arr)); \
- }
-
-# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \
- inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__)) { \
- call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList()); \
- } \
- FMT_WRAP(Char, ReturnType, func, call, 1, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 2, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 3, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 4, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 5, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 6, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 7, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 8, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 9, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 10, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 11, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 12, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 13, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 14, __VA_ARGS__) \
- FMT_WRAP(Char, ReturnType, func, call, 15, __VA_ARGS__)
-#endif // FMT_USE_VARIADIC_TEMPLATES
-
-/**
-\rst
-Defines a variadic function with the specified return type, function name
-and argument types passed as variable arguments to this macro.
-
-**Example**::
-
-void print_error(const char *file, int line, const char *format,
-fmt::ArgList args) {
-fmt::print("{}: {}: ", file, line);
-fmt::print(format, args);
-}
-FMT_VARIADIC(void, print_error, const char *, int, const char *)
-
-``FMT_VARIADIC`` is used for compatibility with legacy C++ compilers that
-don't implement variadic templates. You don't have to use this macro if
-you don't need legacy compiler support and can use variadic templates
-directly::
-
-template <typename... Args>
-void print_error(const char *file, int line, const char *format,
-const Args & ... args) {
-fmt::print("{}: {}: ", file, line);
-fmt::print(format, args...);
-}
-\endrst
-*/
-#define FMT_VARIADIC(ReturnType, func, ...) \
- FMT_VARIADIC_(char, ReturnType, func, return func, __VA_ARGS__)
-
-#define FMT_VARIADIC_W(ReturnType, func, ...) \
- FMT_VARIADIC_(wchar_t, ReturnType, func, return func, __VA_ARGS__)
-
-#define FMT_CAPTURE_ARG_(id, index) ::fmt::arg(#id, id)
-
-#define FMT_CAPTURE_ARG_W_(id, index) ::fmt::arg(L###id, id)
-
-/**
-\rst
-Convenient macro to capture the arguments' names and values into several
-``fmt::arg(name, value)``.
-
-**Example**::
-
-int x = 1, y = 2;
-print("point: ({x}, {y})", FMT_CAPTURE(x, y));
-// same as:
-// print("point: ({x}, {y})", arg("x", x), arg("y", y));
-
-\endrst
-*/
-#define FMT_CAPTURE(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_, __VA_ARGS__)
-
-#define FMT_CAPTURE_W(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_W_, __VA_ARGS__)
-
-namespace fmt
-{
-FMT_VARIADIC(std::string, format, CStringRef)
-FMT_VARIADIC_W(std::wstring, format, WCStringRef)
-FMT_VARIADIC(void, print, CStringRef)
-FMT_VARIADIC(void, print, std::FILE *, CStringRef)
-
-FMT_VARIADIC(void, print_colored, Color, CStringRef)
-FMT_VARIADIC(std::string, sprintf, CStringRef)
-FMT_VARIADIC_W(std::wstring, sprintf, WCStringRef)
-FMT_VARIADIC(int, printf, CStringRef)
-FMT_VARIADIC(int, fprintf, std::FILE *, CStringRef)
-
-#if FMT_USE_IOSTREAMS
-/**
-\rst
-Prints formatted data to the stream *os*.
-
-**Example**::
-
-print(cerr, "Don't {}!", "panic");
-\endrst
-*/
-FMT_API void print(std::ostream &os, CStringRef format_str, ArgList args);
-FMT_VARIADIC(void, print, std::ostream &, CStringRef)
-
-/**
-\rst
-Prints formatted data to the stream *os*.
-
-**Example**::
-
-fprintf(cerr, "Don't %s!", "panic");
-\endrst
-*/
-FMT_API int fprintf(std::ostream &os, CStringRef format_str, ArgList args);
-FMT_VARIADIC(int, fprintf, std::ostream &, CStringRef)
-#endif
-
-namespace internal
-{
-template <typename Char>
-inline bool is_name_start(Char c)
-{
- return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
-}
-
-// Parses an unsigned integer advancing s to the end of the parsed input.
-// This function assumes that the first character of s is a digit.
-template <typename Char>
-unsigned parse_nonnegative_int(const Char *&s)
-{
- assert('0' <= *s && *s <= '9');
- unsigned value = 0;
- do
- {
- unsigned new_value = value * 10 + (*s++ - '0');
- // Check if value wrapped around.
- if (new_value < value)
- {
- value = (std::numeric_limits<unsigned>::max)();
- break;
- }
- value = new_value;
- }
- while ('0' <= *s && *s <= '9');
- // Convert to unsigned to prevent a warning.
- unsigned max_int = (std::numeric_limits<int>::max)();
- if (value > max_int)
- FMT_THROW(FormatError("number is too big"));
- return value;
-}
-
-inline void require_numeric_argument(const Arg &arg, char spec)
-{
- if (arg.type > Arg::LAST_NUMERIC_TYPE)
- {
- std::string message =
- fmt::format("format specifier '{}' requires numeric argument", spec);
- FMT_THROW(fmt::FormatError(message));
- }
-}
-
-template <typename Char>
-void check_sign(const Char *&s, const Arg &arg)
-{
- char sign = static_cast<char>(*s);
- require_numeric_argument(arg, sign);
- if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG)
- {
- FMT_THROW(FormatError(fmt::format(
- "format specifier '{}' requires signed argument", sign)));
- }
- ++s;
-}
-} // namespace internal
-
-template <typename Char, typename AF>
-inline internal::Arg BasicFormatter<Char, AF>::get_arg(
- BasicStringRef<Char> arg_name, const char *&error)
-{
- if (check_no_auto_index(error))
- {
- map_.init(args());
- const internal::Arg *arg = map_.find(arg_name);
- if (arg)
- return *arg;
- error = "argument not found";
- }
- return internal::Arg();
-}
-
-template <typename Char, typename AF>
-inline internal::Arg BasicFormatter<Char, AF>::parse_arg_index(const Char *&s)
-{
- const char *error = 0;
- internal::Arg arg = *s < '0' || *s > '9' ?
- next_arg(error) : get_arg(internal::parse_nonnegative_int(s), error);
- if (error)
- {
- FMT_THROW(FormatError(
- *s != '}' && *s != ':' ? "invalid format string" : error));
- }
- return arg;
-}
-
-template <typename Char, typename AF>
-inline internal::Arg BasicFormatter<Char, AF>::parse_arg_name(const Char *&s)
-{
- assert(internal::is_name_start(*s));
- const Char *start = s;
- Char c;
- do
- {
- c = *++s;
- }
- while (internal::is_name_start(c) || ('0' <= c && c <= '9'));
- const char *error = 0;
- internal::Arg arg = get_arg(BasicStringRef<Char>(start, s - start), error);
- if (error)
- FMT_THROW(FormatError(error));
- return arg;
-}
-
-template <typename Char, typename ArgFormatter>
-const Char *BasicFormatter<Char, ArgFormatter>::format(
- const Char *&format_str, const internal::Arg &arg)
-{
- using internal::Arg;
- const Char *s = format_str;
- FormatSpec spec;
- if (*s == ':')
- {
- if (arg.type == Arg::CUSTOM)
- {
- arg.custom.format(this, arg.custom.value, &s);
- return s;
- }
- ++s;
- // Parse fill and alignment.
- if (Char c = *s)
- {
- const Char *p = s + 1;
- spec.align_ = ALIGN_DEFAULT;
- do
- {
- switch (*p)
- {
- case '<':
- spec.align_ = ALIGN_LEFT;
- break;
- case '>':
- spec.align_ = ALIGN_RIGHT;
- break;
- case '=':
- spec.align_ = ALIGN_NUMERIC;
- break;
- case '^':
- spec.align_ = ALIGN_CENTER;
- break;
- }
- if (spec.align_ != ALIGN_DEFAULT)
- {
- if (p != s)
- {
- if (c == '}') break;
- if (c == '{')
- FMT_THROW(FormatError("invalid fill character '{'"));
- s += 2;
- spec.fill_ = c;
- }
- else ++s;
- if (spec.align_ == ALIGN_NUMERIC)
- require_numeric_argument(arg, '=');
- break;
- }
- }
- while (--p >= s);
- }
-
- // Parse sign.
- switch (*s)
- {
- case '+':
- check_sign(s, arg);
- spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
- break;
- case '-':
- check_sign(s, arg);
- spec.flags_ |= MINUS_FLAG;
- break;
- case ' ':
- check_sign(s, arg);
- spec.flags_ |= SIGN_FLAG;
- break;
- }
-
- if (*s == '#')
- {
- require_numeric_argument(arg, '#');
- spec.flags_ |= HASH_FLAG;
- ++s;
- }
-
- // Parse zero flag.
- if (*s == '0')
- {
- require_numeric_argument(arg, '0');
- spec.align_ = ALIGN_NUMERIC;
- spec.fill_ = '0';
- ++s;
- }
-
- // Parse width.
- if ('0' <= *s && *s <= '9')
- {
- spec.width_ = internal::parse_nonnegative_int(s);
- }
- else if (*s == '{')
- {
- ++s;
- Arg width_arg = internal::is_name_start(*s) ?
- parse_arg_name(s) : parse_arg_index(s);
- if (*s++ != '}')
- FMT_THROW(FormatError("invalid format string"));
- ULongLong value = 0;
- switch (width_arg.type)
- {
- case Arg::INT:
- if (width_arg.int_value < 0)
- FMT_THROW(FormatError("negative width"));
- value = width_arg.int_value;
- break;
- case Arg::UINT:
- value = width_arg.uint_value;
- break;
- case Arg::LONG_LONG:
- if (width_arg.long_long_value < 0)
- FMT_THROW(FormatError("negative width"));
- value = width_arg.long_long_value;
- break;
- case Arg::ULONG_LONG:
- value = width_arg.ulong_long_value;
- break;
- default:
- FMT_THROW(FormatError("width is not integer"));
- }
- if (value >(std::numeric_limits<int>::max)())
- FMT_THROW(FormatError("number is too big"));
- spec.width_ = static_cast<int>(value);
- }
-
- // Parse precision.
- if (*s == '.')
- {
- ++s;
- spec.precision_ = 0;
- if ('0' <= *s && *s <= '9')
- {
- spec.precision_ = internal::parse_nonnegative_int(s);
- }
- else if (*s == '{')
- {
- ++s;
- Arg precision_arg = internal::is_name_start(*s) ?
- parse_arg_name(s) : parse_arg_index(s);
- if (*s++ != '}')
- FMT_THROW(FormatError("invalid format string"));
- ULongLong value = 0;
- switch (precision_arg.type)
- {
- case Arg::INT:
- if (precision_arg.int_value < 0)
- FMT_THROW(FormatError("negative precision"));
- value = precision_arg.int_value;
- break;
- case Arg::UINT:
- value = precision_arg.uint_value;
- break;
- case Arg::LONG_LONG:
- if (precision_arg.long_long_value < 0)
- FMT_THROW(FormatError("negative precision"));
- value = precision_arg.long_long_value;
- break;
- case Arg::ULONG_LONG:
- value = precision_arg.ulong_long_value;
- break;
- default:
- FMT_THROW(FormatError("precision is not integer"));
- }
- if (value >(std::numeric_limits<int>::max)())
- FMT_THROW(FormatError("number is too big"));
- spec.precision_ = static_cast<int>(value);
- }
- else
- {
- FMT_THROW(FormatError("missing precision specifier"));
- }
- if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER)
- {
- FMT_THROW(FormatError(
- fmt::format("precision not allowed in {} format specifier",
- arg.type == Arg::POINTER ? "pointer" : "integer")));
- }
- }
-
- // Parse type.
- if (*s != '}' && *s)
- spec.type_ = static_cast<char>(*s++);
- }
-
- if (*s++ != '}')
- FMT_THROW(FormatError("missing '}' in format string"));
-
- // Format argument.
- ArgFormatter(*this, spec, s - 1).visit(arg);
- return s;
-}
-
-template <typename Char, typename AF>
-void BasicFormatter<Char, AF>::format(BasicCStringRef<Char> format_str)
-{
- const Char *s = format_str.c_str();
- const Char *start = s;
- while (*s)
- {
- Char c = *s++;
- if (c != '{' && c != '}') continue;
- if (*s == c)
- {
- write(writer_, start, s);
- start = ++s;
- continue;
- }
- if (c == '}')
- FMT_THROW(FormatError("unmatched '}' in format string"));
- write(writer_, start, s - 1);
- internal::Arg arg = internal::is_name_start(*s) ?
- parse_arg_name(s) : parse_arg_index(s);
- start = s = format(s, arg);
- }
- write(writer_, start, s);
-}
-} // namespace fmt
-
-#if FMT_USE_USER_DEFINED_LITERALS
-namespace fmt
-{
-namespace internal
-{
-
-template <typename Char>
-struct UdlFormat
-{
- const Char *str;
-
- template <typename... Args>
- auto operator()(Args && ... args) const
- -> decltype(format(str, std::forward<Args>(args)...))
- {
- return format(str, std::forward<Args>(args)...);
- }
-};
-
-template <typename Char>
-struct UdlArg
-{
- const Char *str;
-
- template <typename T>
- NamedArg<Char> operator=(T &&value) const
- {
- return { str, std::forward<T>(value) };
- }
-};
-
-} // namespace internal
-
-inline namespace literals
-{
-
-/**
-\rst
-C++11 literal equivalent of :func:`fmt::format`.
-
-**Example**::
-
-using namespace fmt::literals;
-std::string message = "The answer is {}"_format(42);
-\endrst
-*/
-inline internal::UdlFormat<char>
-operator"" _format(const char *s, std::size_t)
-{
- return { s };
-}
-inline internal::UdlFormat<wchar_t>
-operator"" _format(const wchar_t *s, std::size_t)
-{
- return { s };
-}
-
-/**
-\rst
-C++11 literal equivalent of :func:`fmt::arg`.
-
-**Example**::
-
-using namespace fmt::literals;
-print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
-\endrst
-*/
-inline internal::UdlArg<char>
-operator"" _a(const char *s, std::size_t)
-{
- return { s };
-}
-inline internal::UdlArg<wchar_t>
-operator"" _a(const wchar_t *s, std::size_t)
-{
- return { s };
-}
-
-} // inline namespace literals
-} // namespace fmt
-#endif // FMT_USE_USER_DEFINED_LITERALS
-
-// Restore warnings.
-#if FMT_GCC_VERSION >= 406
-# pragma GCC diagnostic pop
-#endif
-
-#if defined(__clang__) && !defined(__INTEL_COMPILER)
-# pragma clang diagnostic pop
-#endif
-
-#ifdef FMT_HEADER_ONLY
-# include "format.cc"
-#endif
-
-#endif // FMT_FORMAT_H_
-
diff --git a/include/spdlog/details/log_msg.h b/include/spdlog/details/log_msg.h
index 52bd956a..a5511cc4 100644
--- a/include/spdlog/details/log_msg.h
+++ b/include/spdlog/details/log_msg.h
@@ -6,7 +6,7 @@
#pragma once
#include <spdlog/common.h>
-#include <spdlog/details/format.h>
+#include <spdlog/fmt/format.h>
#include <spdlog/details/os.h>
#include <string>
diff --git a/include/spdlog/details/pattern_formatter_impl.h b/include/spdlog/details/pattern_formatter_impl.h
index f960e726..8d9127df 100644
--- a/include/spdlog/details/pattern_formatter_impl.h
+++ b/include/spdlog/details/pattern_formatter_impl.h
@@ -8,7 +8,7 @@
#include <spdlog/formatter.h>
#include <spdlog/details/log_msg.h>
#include <spdlog/details/os.h>
-#include <spdlog/details/format.h>
+#include <spdlog/fmt/format.h>
#include <chrono>
#include <ctime>
diff --git a/include/spdlog/fmt/format.cc b/include/spdlog/fmt/format.cc
new file mode 100644
index 00000000..548ecf10
--- /dev/null
+++ b/include/spdlog/fmt/format.cc
@@ -0,0 +1,559 @@
+/*
+ Formatting library for C++
+
+ Copyright (c) 2012 - 2016, Victor Zverovich
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+// The next 2 lines where commented out by spdlog
+//#include "fmt/format.h"
+//#include "fmt/printf.h"
+
+#include <string.h>
+
+#include <cctype>
+#include <cerrno>
+#include <climits>
+#include <cmath>
+#include <cstdarg>
+#include <cstddef> // for std::ptrdiff_t
+
+#if defined(_WIN32) && defined(__MINGW32__)
+# include <cstring>
+#endif
+
+#if FMT_USE_WINDOWS_H
+# if defined(NOMINMAX) || defined(FMT_WIN_MINMAX)
+# include <windows.h>
+# else
+# define NOMINMAX
+# include <windows.h>
+# undef NOMINMAX
+# endif
+#endif
+
+using fmt::internal::Arg;
+
+#if FMT_EXCEPTIONS
+# define FMT_TRY try
+# define FMT_CATCH(x) catch (x)
+#else
+# define FMT_TRY if (true)
+# define FMT_CATCH(x) if (false)
+#endif
+
+#ifdef _MSC_VER
+# pragma warning(push)
+# pragma warning(disable: 4127) // conditional expression is constant
+# pragma warning(disable: 4702) // unreachable code
+// Disable deprecation warning for strerror. The latter is not called but
+// MSVC fails to detect it.
+# pragma warning(disable: 4996)
+#endif
+
+// Dummy implementations of strerror_r and strerror_s called if corresponding
+// system functions are not available.
+static inline fmt::internal::Null<> strerror_r(int, char *, ...) {
+ return fmt::internal::Null<>();
+}
+static inline fmt::internal::Null<> strerror_s(char *, std::size_t, ...) {
+ return fmt::internal::Null<>();
+}
+
+namespace fmt {
+
+FMT_FUNC internal::RuntimeError::~RuntimeError() throw() {}
+FMT_FUNC FormatError::~FormatError() throw() {}
+FMT_FUNC SystemError::~SystemError() throw() {}
+
+namespace {
+
+#ifndef _MSC_VER
+# define FMT_SNPRINTF snprintf
+#else // _MSC_VER
+inline int fmt_snprintf(char *buffer, size_t size, const char *format, ...) {
+ va_list args;
+ va_start(args, format);
+ int result = vsnprintf_s(buffer, size, _TRUNCATE, format, args);
+ va_end(args);
+ return result;
+}
+# define FMT_SNPRINTF fmt_snprintf
+#endif // _MSC_VER
+
+#if defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
+# define FMT_SWPRINTF snwprintf
+#else
+# define FMT_SWPRINTF swprintf
+#endif // defined(_WIN32) && defined(__MINGW32__) && !defined(__NO_ISOCEXT)
+
+const char RESET_COLOR[] = "\x1b[0m";
+
+typedef void (*FormatFunc)(Writer &, int, StringRef);
+
+// Portable thread-safe version of strerror.
+// Sets buffer to point to a string describing the error code.
+// This can be either a pointer to a string stored in buffer,
+// or a pointer to some static immutable string.
+// Returns one of the following values:
+// 0 - success
+// ERANGE - buffer is not large enough to store the error message
+// other - failure
+// Buffer should be at least of size 1.
+int safe_strerror(
+ int error_code, char *&buffer, std::size_t buffer_size) FMT_NOEXCEPT {
+ FMT_ASSERT(buffer != 0 && buffer_size != 0, "invalid buffer");
+
+ class StrError {
+ private:
+ int error_code_;
+ char *&buffer_;
+ std::size_t buffer_size_;
+
+ // A noop assignment operator to avoid bogus warnings.
+ void operator=(const StrError &) {}
+
+ // Handle the result of XSI-compliant version of strerror_r.
+ int handle(int result) {
+ // glibc versions before 2.13 return result in errno.
+ return result == -1 ? errno : result;
+ }
+
+ // Handle the result of GNU-specific version of strerror_r.
+ int handle(char *message) {
+ // If the buffer is full then the message is probably truncated.
+ if (message == buffer_ && strlen(buffer_) == buffer_size_ - 1)
+ return ERANGE;
+ buffer_ = message;
+ return 0;
+ }
+
+ // Handle the case when strerror_r is not available.
+ int handle(internal::Null<>) {
+ return fallback(strerror_s(buffer_, buffer_size_, error_code_));
+ }
+
+ // Fallback to strerror_s when strerror_r is not available.
+ int fallback(int result) {
+ // If the buffer is full then the message is probably truncated.
+ return result == 0 && strlen(buffer_) == buffer_size_ - 1 ?
+ ERANGE : result;
+ }
+
+ // Fallback to strerror if strerror_r and strerror_s are not available.
+ int fallback(internal::Null<>) {
+ errno = 0;
+ buffer_ = strerror(error_code_);
+ return errno;
+ }
+
+ public:
+ StrError(int err_code, char *&buf, std::size_t buf_size)
+ : error_code_(err_code), buffer_(buf), buffer_size_(buf_size) {}
+
+ int run() {
+ strerror_r(0, 0, ""); // Suppress a warning about unused strerror_r.
+ return handle(strerror_r(error_code_, buffer_, buffer_size_));
+ }
+ };
+ return StrError(error_code, buffer, buffer_size).run();
+}
+
+void format_error_code(Writer &out, int error_code,
+ StringRef message) FMT_NOEXCEPT {
+ // Report error code making sure that the output fits into
+ // INLINE_BUFFER_SIZE to avoid dynamic memory allocation and potential
+ // bad_alloc.
+ out.clear();
+ static const char SEP[] = ": ";
+ static const char ERROR_STR[] = "error ";
+ // Subtract 2 to account for terminating null characters in SEP and ERROR_STR.
+ std::size_t error_code_size = sizeof(SEP) + sizeof(ERROR_STR) - 2;
+ typedef internal::IntTraits<int>::MainType MainType;
+ MainType abs_value = static_cast<MainType>(error_code);
+ if (internal::is_negative(error_code)) {
+ abs_value = 0 - abs_value;
+ ++error_code_size;
+ }
+ error_code_size += internal::count_digits(abs_value);
+ if (message.size() <= internal::INLINE_BUFFER_SIZE - error_code_size)
+ out << message << SEP;
+ out << ERROR_STR << error_code;
+ assert(out.size() <= internal::INLINE_BUFFER_SIZE);
+}
+
+void report_error(FormatFunc func, int error_code,
+ StringRef message) FMT_NOEXCEPT {
+ MemoryWriter full_message;
+ func(full_message, error_code, message);
+ // Use Writer::data instead of Writer::c_str to avoid potential memory
+ // allocation.
+ std::fwrite(full_message.data(), full_message.size(), 1, stderr);
+ std::fputc('\n', stderr);
+}
+} // namespace
+
+namespace internal {
+
+// This method is used to preserve binary compatibility with fmt 3.0.
+// It can be removed in 4.0.
+FMT_FUNC void format_system_error(
+ Writer &out, int error_code, StringRef message) FMT_NOEXCEPT {
+ fmt::format_system_error(out, error_code, message);
+}
+} // namespace internal
+
+FMT_FUNC void SystemError::init(
+ int err_code, CStringRef format_str, ArgList args) {
+ error_code_ = err_code;
+ MemoryWriter w;
+ format_system_error(w, err_code, format(format_str, args));
+ std::runtime_error &base = *this;
+ base = std::runtime_error(w.str());
+}
+
+template <typename T>
+int internal::CharTraits<char>::format_float(
+ char *buffer, std::size_t size, const char *format,
+ unsigned width, int precision, T value) {
+ if (width == 0) {
+ return precision < 0 ?
+ FMT_SNPRINTF(buffer, size, format, value) :
+ FMT_SNPRINTF(buffer, size, format, precision, value);
+ }
+ return precision < 0 ?
+ FMT_SNPRINTF(buffer, size, format, width, value) :
+ FMT_SNPRINTF(buffer, size, format, width, precision, value);
+}
+
+template <typename T>
+int internal::CharTraits<wchar_t>::format_float(
+ wchar_t *buffer, std::size_t size, const wchar_t *format,
+ unsigned width, int precision, T value) {
+ if (width == 0) {
+ return precision < 0 ?
+ FMT_SWPRINTF(buffer, size, format, value) :
+ FMT_SWPRINTF(buffer, size, format, precision, value);
+ }
+ return precision < 0 ?
+ FMT_SWPRINTF(buffer, size, format, width, value) :
+ FMT_SWPRINTF(buffer, size, format, width, precision, value);
+}
+
+template <typename T>
+const char internal::BasicData<T>::DIGITS[] =
+ "0001020304050607080910111213141516171819"
+ "2021222324252627282930313233343536373839"
+ "4041424344454647484950515253545556575859"
+ "6061626364656667686970717273747576777879"
+ "8081828384858687888990919293949596979899";
+
+#define FMT_POWERS_OF_10(factor) \
+ factor * 10, \
+ factor * 100, \
+ factor * 1000, \
+ factor * 10000, \
+ factor * 100000, \
+ factor * 1000000, \
+ factor * 10000000, \
+ factor * 100000000, \
+ factor * 1000000000
+
+template <typename T>
+const uint32_t internal::BasicData<T>::POWERS_OF_10_32[] = {
+ 0, FMT_POWERS_OF_10(1)
+};
+
+template <typename T>
+const uint64_t internal::BasicData<T>::POWERS_OF_10_64[] = {
+ 0,
+ FMT_POWERS_OF_10(1),
+ FMT_POWERS_OF_10(ULongLong(1000000000)),
+ // Multiply several constants instead of using a single long long constant
+ // to avoid warnings about C++98 not supporting long long.
+ ULongLong(1000000000) * ULongLong(1000000000) * 10
+};
+
+FMT_FUNC void internal::report_unknown_type(char code, const char *type) {
+ (void)type;
+ if (std::isprint(static_cast<unsigned char>(code))) {
+ FMT_THROW(FormatError(
+ format("unknown format code '{}' for {}", code, type)));
+ }
+ FMT_THROW(FormatError(
+ format("unknown format code '\\x{:02x}' for {}",
+ static_cast<unsigned>(code), type)));
+}
+
+#if FMT_USE_WINDOWS_H
+
+FMT_FUNC internal::UTF8ToUTF16::UTF8ToUTF16(StringRef s) {
+ static const char ERROR_MSG[] = "cannot convert string from UTF-8 to UTF-16";
+ if (s.size() > INT_MAX)
+ FMT_THROW(WindowsError(ERROR_INVALID_PARAMETER, ERROR_MSG));
+ int s_size = static_cast<int>(s.size());
+ int length = MultiByteToWideChar(
+ CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, 0, 0);
+ if (length == 0)
+ FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
+ buffer_.resize(length + 1);
+ length = MultiByteToWideChar(
+ CP_UTF8, MB_ERR_INVALID_CHARS, s.data(), s_size, &buffer_[0], length);
+ if (length == 0)
+ FMT_THROW(WindowsError(GetLastError(), ERROR_MSG));
+ buffer_[length] = 0;
+}
+
+FMT_FUNC internal::UTF16ToUTF8::UTF16ToUTF8(WStringRef s) {
+ if (int error_code = convert(s)) {
+ FMT_THROW(WindowsError(error_code,
+ "cannot convert string from UTF-16 to UTF-8"));
+ }
+}
+
+FMT_FUNC int internal::UTF16ToUTF8::convert(WStringRef s) {
+ if (s.size() > INT_MAX)
+ return ERROR_INVALID_PARAMETER;
+ int s_size = static_cast<int>(s.size());
+ int length = WideCharToMultiByte(CP_UTF8, 0, s.data(), s_size, 0, 0, 0, 0);
+ if (length == 0)
+ return GetLastError();
+ buffer_.resize(length + 1);
+ length = WideCharToMultiByte(
+ CP_UTF8, 0, s.data(), s_size, &buffer_[0], length, 0, 0);
+ if (length == 0)
+ return GetLastError();
+ buffer_[length] = 0;
+ return 0;
+}
+
+FMT_FUNC void WindowsError::init(
+ int err_code, CStringRef format_str, ArgList args) {
+ error_code_ = err_code;
+ MemoryWriter w;
+ internal::format_windows_error(w, err_code, format(format_str, args));
+ std::runtime_error &base = *this;
+ base = std::runtime_error(w.str());
+}
+
+FMT_FUNC void internal::format_windows_error(
+ Writer &out, int error_code, StringRef message) FMT_NOEXCEPT {
+ FMT_TRY {
+ MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer;
+ buffer.resize(INLINE_BUFFER_SIZE);
+ for (;;) {
+ wchar_t *system_message = &buffer[0];
+ int result = FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS,
+ 0, error_code, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+ system_message, static_cast<uint32_t>(buffer.size()), 0);
+ if (result != 0) {
+ UTF16ToUTF8 utf8_message;
+ if (utf8_message.convert(system_message) == ERROR_SUCCESS) {
+ out << message << ": " << utf8_message;
+ return;
+ }
+ break;
+ }
+ if (GetLastError() != ERROR_INSUFFICIENT_BUFFER)
+ break; // Can't get error message, report error code instead.
+ buffer.resize(buffer.size() * 2);
+ }
+ } FMT_CATCH(...) {}
+ fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32.
+}
+
+#endif // FMT_USE_WINDOWS_H
+
+FMT_FUNC void format_system_error(
+ Writer &out, int error_code, StringRef message) FMT_NOEXCEPT {
+ FMT_TRY {
+ internal::MemoryBuffer<char, internal::INLINE_BUFFER_SIZE> buffer;
+ buffer.resize(internal::INLINE_BUFFER_SIZE);
+ for (;;) {
+ char *system_message = &buffer[0];
+ int result = safe_strerror(error_code, system_message, buffer.size());
+ if (result == 0) {
+ out << message << ": " << system_message;
+ return;
+ }
+ if (result != ERANGE)
+ break; // Can't get error message, report error code instead.
+ buffer.resize(buffer.size() * 2);
+ }
+ } FMT_CATCH(...) {}
+ fmt::format_error_code(out, error_code, message); // 'fmt::' is for bcc32.
+}
+
+template <typename Char>
+void internal::ArgMap<Char>::init(const ArgList &args) {
+ if (!map_.empty())
+ return;
+ typedef internal::NamedArg<Char> NamedArg;
+ const NamedArg *named_arg = 0;
+ bool use_values =
+ args.type(ArgList::MAX_PACKED_ARGS - 1) == internal::Arg::NONE;
+ if (use_values) {
+ for (unsigned i = 0;/*nothing*/; ++i) {
+ internal::Arg::Type arg_type = args.type(i);
+ switch (arg_type) {
+ case internal::Arg::NONE:
+ return;
+ case internal::Arg::NAMED_ARG:
+ named_arg = static_cast<const NamedArg*>(args.values_[i].pointer);
+ map_.push_back(Pair(named_arg->name, *named_arg));
+ break;
+ default:
+ /*nothing*/;
+ }
+ }
+ return;
+ }
+ for (unsigned i = 0; i != ArgList::MAX_PACKED_ARGS; ++i) {
+ internal::Arg::Type arg_type = args.type(i);
+ if (arg_type == internal::Arg::NAMED_ARG) {
+ named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
+ map_.push_back(Pair(named_arg->name, *named_arg));
+ }
+ }
+ for (unsigned i = ArgList::MAX_PACKED_ARGS;/*nothing*/; ++i) {
+ switch (args.args_[i].type) {
+ case internal::Arg::NONE:
+ return;
+ case internal::Arg::NAMED_ARG:
+ named_arg = static_cast<const NamedArg*>(args.args_[i].pointer);
+ map_.push_back(Pair(named_arg->name, *named_arg));
+ break;
+ default:
+ /*nothing*/;
+ }
+ }
+}
+
+template <typename Char>
+void internal::FixedBuffer<Char>::grow(std::size_t) {
+ FMT_THROW(std::runtime_error("buffer overflow"));
+}
+
+FMT_FUNC Arg internal::FormatterBase::do_get_arg(
+ unsigned arg_index, const char *&error) {
+ Arg arg = args_[arg_index];
+ switch (arg.type) {
+ case Arg::NONE:
+ error = "argument index out of range";
+ break;
+ case Arg::NAMED_ARG:
+ arg = *static_cast<const internal::Arg*>(arg.pointer);
+ break;
+ default:
+ /*nothing*/;
+ }
+ return arg;
+}
+
+FMT_FUNC void report_system_error(
+ int error_code, fmt::StringRef message) FMT_NOEXCEPT {
+ // 'fmt::' is for bcc32.
+ report_error(format_system_error, error_code, message);
+}
+
+#if FMT_USE_WINDOWS_H
+FMT_FUNC void report_windows_error(
+ int error_code, fmt::StringRef message) FMT_NOEXCEPT {
+ // 'fmt::' is for bcc32.
+ report_error(internal::format_windows_error, error_code, message);
+}
+#endif
+
+FMT_FUNC void print(std::FILE *f, CStringRef format_str, ArgList args) {
+ MemoryWriter w;
+ w.write(format_str, args);
+ std::fwrite(w.data(), 1, w.size(), f);
+}
+
+FMT_FUNC void print(CStringRef format_str, ArgList args) {
+ print(stdout, format_str, args);
+}
+
+FMT_FUNC void print_colored(Color c, CStringRef format, ArgList args) {
+ char escape[] = "\x1b[30m";
+ escape[3] = static_cast<char>('0' + c);
+ std::fputs(escape, stdout);
+ print(format, args);
+ std::fputs(RESET_COLOR, stdout);
+}
+
+template <typename Char>
+void printf(BasicWriter<Char> &w, BasicCStringRef<Char> format, ArgList args);
+
+FMT_FUNC int fprintf(std::FILE *f, CStringRef format, ArgList args) {
+ MemoryWriter w;
+ printf(w, format, args);
+ std::size_t size = w.size();
+ return std::fwrite(w.data(), 1, size, f) < size ? -1 : static_cast<int>(size);
+}
+
+#ifndef FMT_HEADER_ONLY
+
+template struct internal::BasicData<void>;
+
+// Explicit instantiations for char.
+
+template void internal::FixedBuffer<char>::grow(std::size_t);
+
+template void internal::ArgMap<char>::init(const ArgList &args);
+
+template void internal::PrintfFormatter<char>::format(
+ BasicWriter<char> &writer, CStringRef format);
+
+template int internal::CharTraits<char>::format_float(
+ char *buffer, std::size_t size, const char *format,
+ unsigned width, int precision, double value);
+
+template int internal::CharTraits<char>::format_float(
+ char *buffer, std::size_t size, const char *format,
+ unsigned width, int precision, long double value);
+
+// Explicit instantiations for wchar_t.
+
+template void internal::FixedBuffer<wchar_t>::grow(std::size_t);
+
+template void internal::ArgMap<wchar_t>::init(const ArgList &args);
+
+template void internal::PrintfFormatter<wchar_t>::format(
+ BasicWriter<wchar_t> &writer, WCStringRef format);
+
+template int internal::CharTraits<wchar_t>::format_float(
+ wchar_t *buffer, std::size_t size, const wchar_t *format,
+ unsigned width, int precision, double value);
+
+template int internal::CharTraits<wchar_t>::format_float(
+ wchar_t *buffer, std::size_t size, const wchar_t *format,
+ unsigned width, int precision, long double value);
+
+#endif // FMT_HEADER_ONLY
+
+} // namespace fmt
+
+#ifdef _MSC_VER
+# pragma warning(pop)
+#endif \ No newline at end of file
diff --git a/include/spdlog/fmt/format.h b/include/spdlog/fmt/format.h
new file mode 100644
index 00000000..dff5a4b3
--- /dev/null
+++ b/include/spdlog/fmt/format.h
@@ -0,0 +1,4369 @@
+/*
+Formatting library for C++
+
+Copyright (c) 2012 - 2016, Victor Zverovich
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions and the following disclaimer in the documentation
+and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#ifndef FMT_FORMAT_H_
+#define FMT_FORMAT_H_
+
+#include <cassert>
+#include <clocale>
+#include <cmath>
+#include <cstdio>
+#include <cstring>
+#include <limits>
+#include <memory>
+#include <stdexcept>
+#include <string>
+#include <vector>
+#include <utility>
+
+// Next 4 lines were added by spdlog for header only usage and w/o windows.h
+#define FMT_HEADER_ONLY
+#if !defined (FMT_USE_WINDOWS_H)
+#define FMT_USE_WINDOWS_H 0
+#endif
+
+#ifdef _SECURE_SCL
+# define FMT_SECURE_SCL _SECURE_SCL
+#else
+# define FMT_SECURE_SCL 0
+#endif
+
+#if FMT_SECURE_SCL
+# include <iterator>
+#endif
+
+#ifdef _MSC_VER
+# define FMT_MSC_VER _MSC_VER
+#else
+# define FMT_MSC_VER 0
+#endif
+
+#if FMT_MSC_VER && FMT_MSC_VER <= 1500
+typedef unsigned __int32 uint32_t;
+typedef unsigned __int64 uint64_t;
+typedef __int64 intmax_t;
+#else
+#include <stdint.h>
+#endif
+
+#if !defined(FMT_HEADER_ONLY) && defined(_WIN32)
+# ifdef FMT_EXPORT
+# define FMT_API __declspec(dllexport)
+# elif defined(FMT_SHARED)
+# define FMT_API __declspec(dllimport)
+# endif
+#endif
+#ifndef FMT_API
+# define FMT_API
+#endif
+
+#ifdef __GNUC__
+# define FMT_GCC_VERSION (__GNUC__ * 100 + __GNUC_MINOR__)
+# define FMT_GCC_EXTENSION __extension__
+# if FMT_GCC_VERSION >= 406
+# pragma GCC diagnostic push
+// Disable the warning about "long long" which is sometimes reported even
+// when using __extension__.
+# pragma GCC diagnostic ignored "-Wlong-long"
+// Disable the warning about declaration shadowing because it affects too
+// many valid cases.
+# pragma GCC diagnostic ignored "-Wshadow"
+// Disable the warning about implicit conversions that may change the sign of
+// an integer; silencing it otherwise would require many explicit casts.
+# pragma GCC diagnostic ignored "-Wsign-conversion"
+# endif
+# if __cplusplus >= 201103L || defined __GXX_EXPERIMENTAL_CXX0X__
+# define FMT_HAS_GXX_CXX11 1
+# endif
+#else
+# define FMT_GCC_EXTENSION
+#endif
+
+#if defined(__INTEL_COMPILER)
+# define FMT_ICC_VERSION __INTEL_COMPILER
+#elif defined(__ICL)
+# define FMT_ICC_VERSION __ICL
+#endif
+
+#if defined(__clang__) && !defined(FMT_ICC_VERSION)
+# pragma clang diagnostic push
+# pragma clang diagnostic ignored "-Wdocumentation-unknown-command"
+# pragma clang diagnostic ignored "-Wpadded"
+#endif
+
+#ifdef __GNUC_LIBSTD__
+# define FMT_GNUC_LIBSTD_VERSION (__GNUC_LIBSTD__ * 100 + __GNUC_LIBSTD_MINOR__)
+#endif
+
+#ifdef __has_feature
+# define FMT_HAS_FEATURE(x) __has_feature(x)
+#else
+# define FMT_HAS_FEATURE(x) 0
+#endif
+
+#ifdef __has_builtin
+# define FMT_HAS_BUILTIN(x) __has_builtin(x)
+#else
+# define FMT_HAS_BUILTIN(x) 0
+#endif
+
+#ifdef __has_cpp_attribute
+# define FMT_HAS_CPP_ATTRIBUTE(x) __has_cpp_attribute(x)
+#else
+# define FMT_HAS_CPP_ATTRIBUTE(x) 0
+#endif
+
+#ifndef FMT_USE_VARIADIC_TEMPLATES
+// Variadic templates are available in GCC since version 4.4
+// (http://gcc.gnu.org/projects/cxx0x.html) and in Visual C++
+// since version 2013.
+# define FMT_USE_VARIADIC_TEMPLATES \
+ (FMT_HAS_FEATURE(cxx_variadic_templates) || \
+ (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1800)
+#endif
+
+#ifndef FMT_USE_RVALUE_REFERENCES
+// Don't use rvalue references when compiling with clang and an old libstdc++
+// as the latter doesn't provide std::move.
+# if defined(FMT_GNUC_LIBSTD_VERSION) && FMT_GNUC_LIBSTD_VERSION <= 402
+# define FMT_USE_RVALUE_REFERENCES 0
+# else
+# define FMT_USE_RVALUE_REFERENCES \
+ (FMT_HAS_FEATURE(cxx_rvalue_references) || \
+ (FMT_GCC_VERSION >= 403 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1600)
+# endif
+#endif
+
+#if FMT_USE_RVALUE_REFERENCES
+# include <utility> // for std::move
+#endif
+
+// Check if exceptions are disabled.
+#if defined(__GNUC__) && !defined(__EXCEPTIONS)
+# define FMT_EXCEPTIONS 0
+#endif
+#if FMT_MSC_VER && !_HAS_EXCEPTIONS
+# define FMT_EXCEPTIONS 0
+#endif
+#ifndef FMT_EXCEPTIONS
+# define FMT_EXCEPTIONS 1
+#endif
+
+#ifndef FMT_THROW
+# if FMT_EXCEPTIONS
+# define FMT_THROW(x) throw x
+# else
+# define FMT_THROW(x) assert(false)
+# endif
+#endif
+
+// Define FMT_USE_NOEXCEPT to make fmt use noexcept (C++11 feature).
+#ifndef FMT_USE_NOEXCEPT
+# define FMT_USE_NOEXCEPT 0
+#endif
+
+#ifndef FMT_NOEXCEPT
+# if FMT_EXCEPTIONS
+# if FMT_USE_NOEXCEPT || FMT_HAS_FEATURE(cxx_noexcept) || \
+ (FMT_GCC_VERSION >= 408 && FMT_HAS_GXX_CXX11) || \
+ FMT_MSC_VER >= 1900
+# define FMT_NOEXCEPT noexcept
+# else
+# define FMT_NOEXCEPT throw()
+# endif
+# else
+# define FMT_NOEXCEPT
+# endif
+#endif
+
+// A macro to disallow the copy constructor and operator= functions
+// This should be used in the private: declarations for a class
+#ifndef FMT_USE_DELETED_FUNCTIONS
+# define FMT_USE_DELETED_FUNCTIONS 0
+#endif
+
+#if FMT_USE_DELETED_FUNCTIONS || FMT_HAS_FEATURE(cxx_deleted_functions) || \
+ (FMT_GCC_VERSION >= 404 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1800
+# define FMT_DELETED_OR_UNDEFINED = delete
+# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
+ TypeName(const TypeName&) = delete; \
+ TypeName& operator=(const TypeName&) = delete
+#else
+# define FMT_DELETED_OR_UNDEFINED
+# define FMT_DISALLOW_COPY_AND_ASSIGN(TypeName) \
+ TypeName(const TypeName&); \
+ TypeName& operator=(const TypeName&)
+#endif
+
+#ifndef FMT_USE_USER_DEFINED_LITERALS
+// All compilers which support UDLs also support variadic templates. This
+// makes the fmt::literals implementation easier. However, an explicit check
+// for variadic templates is added here just in case.
+// For Intel's compiler both it and the system gcc/msc must support UDLs.
+# define FMT_USE_USER_DEFINED_LITERALS \
+ FMT_USE_VARIADIC_TEMPLATES && FMT_USE_RVALUE_REFERENCES && \
+ (FMT_HAS_FEATURE(cxx_user_literals) || \
+ (FMT_GCC_VERSION >= 407 && FMT_HAS_GXX_CXX11) || FMT_MSC_VER >= 1900) && \
+ (!defined(FMT_ICC_VERSION) || FMT_ICC_VERSION >= 1500)
+#endif
+
+#ifndef FMT_ASSERT
+# define FMT_ASSERT(condition, message) assert((condition) && message)
+#endif
+
+#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clz)
+# define FMT_BUILTIN_CLZ(n) __builtin_clz(n)
+#endif
+
+#if FMT_GCC_VERSION >= 400 || FMT_HAS_BUILTIN(__builtin_clzll)
+# define FMT_BUILTIN_CLZLL(n) __builtin_clzll(n)
+#endif
+
+// Some compilers masquerade as both MSVC and GCC-likes or
+// otherwise support __builtin_clz and __builtin_clzll, so
+// only define FMT_BUILTIN_CLZ using the MSVC intrinsics
+// if the clz and clzll builtins are not available.
+#if FMT_MSC_VER && !defined(FMT_BUILTIN_CLZLL)
+# include <intrin.h> // _BitScanReverse, _BitScanReverse64
+
+namespace fmt {
+ namespace internal {
+# pragma intrinsic(_BitScanReverse)
+ inline uint32_t clz(uint32_t x)
+ {
+ unsigned long r = 0;
+ _BitScanReverse(&r, x);
+
+ assert(x != 0);
+ // Static analysis complains about using uninitialized data
+ // "r", but the only way that can happen is if "x" is 0,
+ // which the callers guarantee to not happen.
+# pragma warning(suppress: 6102)
+ return 31 - r;
+ }
+# define FMT_BUILTIN_CLZ(n) fmt::internal::clz(n)
+
+# ifdef _WIN64
+# pragma intrinsic(_BitScanReverse64)
+# endif
+
+ inline uint32_t clzll(uint64_t x)
+ {
+ unsigned long r = 0;
+# ifdef _WIN64
+ _BitScanReverse64(&r, x);
+# else
+ // Scan the high 32 bits.
+ if (_BitScanReverse(&r, static_cast<uint32_t>(x >> 32)))
+ return 63 - (r + 32);
+
+ // Scan the low 32 bits.
+ _BitScanReverse(&r, static_cast<uint32_t>(x));
+# endif
+
+ assert(x != 0);
+ // Static analysis complains about using uninitialized data
+ // "r", but the only way that can happen is if "x" is 0,
+ // which the callers guarantee to not happen.
+# pragma warning(suppress: 6102)
+ return 63 - r;
+ }
+# define FMT_BUILTIN_CLZLL(n) fmt::internal::clzll(n)
+ }
+}
+#endif
+
+namespace fmt {
+ namespace internal {
+ struct DummyInt
+ {
+ int data[2];
+ operator int() const
+ {
+ return 0;
+ }
+ };
+ typedef std::numeric_limits<fmt::internal::DummyInt> FPUtil;
+
+ // Dummy implementations of system functions such as signbit and ecvt called
+ // if the latter are not available.
+ inline DummyInt signbit(...)
+ {
+ return DummyInt();
+ }
+ inline DummyInt _ecvt_s(...)
+ {
+ return DummyInt();
+ }
+ inline DummyInt isinf(...)
+ {
+ return DummyInt();
+ }
+ inline DummyInt _finite(...)
+ {
+ return DummyInt();
+ }
+ inline DummyInt isnan(...)
+ {
+ return DummyInt();
+ }
+ inline DummyInt _isnan(...)
+ {
+ return DummyInt();
+ }
+
+ // A helper function to suppress bogus "conditional expression is constant"
+ // warnings.
+ template <typename T>
+ inline T const_check(T value)
+ {
+ return value;
+ }
+ }
+} // namespace fmt
+
+namespace std {
+ // Standard permits specialization of std::numeric_limits. This specialization
+ // is used to resolve ambiguity between isinf and std::isinf in glibc:
+ // https://gcc.gnu.org/bugzilla/show_bug.cgi?id=48891
+ // and the same for isnan and signbit.
+ template <>
+ class numeric_limits<fmt::internal::DummyInt>:
+ public std::numeric_limits<int>
+ {
+ public:
+ // Portable version of isinf.
+ template <typename T>
+ static bool isinfinity(T x)
+ {
+ using namespace fmt::internal;
+ // The resolution "priority" is:
+ // isinf macro > std::isinf > ::isinf > fmt::internal::isinf
+ if (const_check(sizeof(isinf(x)) == sizeof(bool) ||
+ sizeof(isinf(x)) == sizeof(int))) {
+ return isinf(x) != 0;
+ }
+ return !_finite(static_cast<double>(x));
+ }
+
+ // Portable version of isnan.
+ template <typename T>
+ static bool isnotanumber(T x)
+ {
+ using namespace fmt::internal;
+ if (const_check(sizeof(isnan(x)) == sizeof(bool) ||
+ sizeof(isnan(x)) == sizeof(int))) {
+ return isnan(x) != 0;
+ }
+ return _isnan(static_cast<double>(x)) != 0;
+ }
+
+ // Portable version of signbit.
+ static bool isnegative(double x)
+ {
+ using namespace fmt::internal;
+ if (const_check(sizeof(signbit(x)) == sizeof(int)))
+ return signbit(x) != 0;
+ if (x < 0) return true;
+ if (!isnotanumber(x)) return false;
+ int dec = 0, sign = 0;
+ char buffer[2]; // The buffer size must be >= 2 or _ecvt_s will fail.
+ _ecvt_s(buffer, sizeof(buffer), x, 0, &dec, &sign);
+ return sign != 0;
+ }
+ };
+} // namespace std
+
+namespace fmt {
+
+ // Fix the warning about long long on older versions of GCC
+ // that don't support the diagnostic pragma.
+ FMT_GCC_EXTENSION typedef long long LongLong;
+ FMT_GCC_EXTENSION typedef unsigned long long ULongLong;
+
+#if FMT_USE_RVALUE_REFERENCES
+ using std::move;
+#endif
+
+ template <typename Char>
+ class BasicWriter;
+
+ typedef BasicWriter<char> Writer;
+ typedef BasicWriter<wchar_t> WWriter;
+
+ template <typename Char>
+ class ArgFormatter;
+
+ template <typename CharType,
+ typename ArgFormatter = fmt::ArgFormatter<CharType> >
+ class BasicFormatter;
+
+ /**
+ \rst
+ A string reference. It can be constructed from a C string or ``std::string``.
+
+ You can use one of the following typedefs for common character types:
+
+ +------------+-------------------------+
+ | Type | Definition |
+ +============+=========================+
+ | StringRef | BasicStringRef<char> |
+ +------------+-------------------------+
+ | WStringRef | BasicStringRef<wchar_t> |
+ +------------+-------------------------+
+
+ This class is most useful as a parameter type to allow passing
+ different types of strings to a function, for example::
+
+ template <typename... Args>
+ std::string format(StringRef format_str, const Args & ... args);
+
+ format("{}", 42);
+ format(std::string("{}"), 42);
+ \endrst
+ */
+ template <typename Char>
+ class BasicStringRef
+ {
+ private:
+ const Char *data_;
+ std::size_t size_;
+
+ public:
+ /** Constructs a string reference object from a C string and a size. */
+ BasicStringRef(const Char *s, std::size_t size): data_(s), size_(size)
+ {}
+
+ /**
+ \rst
+ Constructs a string reference object from a C string computing
+ the size with ``std::char_traits<Char>::length``.
+ \endrst
+ */
+ BasicStringRef(const Char *s)
+ : data_(s), size_(std::char_traits<Char>::length(s))
+ {}
+
+ /**
+ \rst
+ Constructs a string reference from an ``std::string`` object.
+ \endrst
+ */
+ BasicStringRef(const std::basic_string<Char> &s)
+ : data_(s.c_str()), size_(s.size())
+ {}
+
+ /**
+ \rst
+ Converts a string reference to an ``std::string`` object.
+ \endrst
+ */
+ std::basic_string<Char> to_string() const
+ {
+ return std::basic_string<Char>(data_, size_);
+ }
+
+ /** Returns a pointer to the string data. */
+ const Char *data() const
+ {
+ return data_;
+ }
+
+ /** Returns the string size. */
+ std::size_t size() const
+ {
+ return size_;
+ }
+
+ // Lexicographically compare this string reference to other.
+ int compare(BasicStringRef other) const
+ {
+ std::size_t size = size_ < other.size_ ? size_ : other.size_;
+ int result = std::char_traits<Char>::compare(data_, other.data_, size);
+ if (result == 0)
+ result = size_ == other.size_ ? 0 : (size_ < other.size_ ? -1 : 1);
+ return result;
+ }
+
+ friend bool operator==(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) == 0;
+ }
+ friend bool operator!=(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) != 0;
+ }
+ friend bool operator<(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) < 0;
+ }
+ friend bool operator<=(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) <= 0;
+ }
+ friend bool operator>(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) > 0;
+ }
+ friend bool operator>=(BasicStringRef lhs, BasicStringRef rhs)
+ {
+ return lhs.compare(rhs) >= 0;
+ }
+ };
+
+ typedef BasicStringRef<char> StringRef;
+ typedef BasicStringRef<wchar_t> WStringRef;
+
+ /**
+ \rst
+ A reference to a null terminated string. It can be constructed from a C
+ string or ``std::string``.
+
+ You can use one of the following typedefs for common character types:
+
+ +-------------+--------------------------+
+ | Type | Definition |
+ +=============+==========================+
+ | CStringRef | BasicCStringRef<char> |
+ +-------------+--------------------------+
+ | WCStringRef | BasicCStringRef<wchar_t> |
+ +-------------+--------------------------+
+
+ This class is most useful as a parameter type to allow passing
+ different types of strings to a function, for example::
+
+ template <typename... Args>
+ std::string format(CStringRef format_str, const Args & ... args);
+
+ format("{}", 42);
+ format(std::string("{}"), 42);
+ \endrst
+ */
+ template <typename Char>
+ class BasicCStringRef
+ {
+ private:
+ const Char *data_;
+
+ public:
+ /** Constructs a string reference object from a C string. */
+ BasicCStringRef(const Char *s): data_(s)
+ {}
+
+ /**
+ \rst
+ Constructs a string reference from an ``std::string`` object.
+ \endrst
+ */
+ BasicCStringRef(const std::basic_string<Char> &s): data_(s.c_str())
+ {}
+
+ /** Returns the pointer to a C string. */
+ const Char *c_str() const
+ {
+ return data_;
+ }
+ };
+
+ typedef BasicCStringRef<char> CStringRef;
+ typedef BasicCStringRef<wchar_t> WCStringRef;
+
+ /** A formatting error such as invalid format string. */
+ class FormatError: public std::runtime_error
+ {
+ public:
+ explicit FormatError(CStringRef message)
+ : std::runtime_error(message.c_str())
+ {}
+ ~FormatError() throw();
+ };
+
+ namespace internal {
+
+ // MakeUnsigned<T>::Type gives an unsigned type corresponding to integer type T.
+ template <typename T>
+ struct MakeUnsigned
+ {
+ typedef T Type;
+ };
+
+#define FMT_SPECIALIZE_MAKE_UNSIGNED(T, U) \
+ template <> \
+ struct MakeUnsigned<T> { typedef U Type; }
+
+ FMT_SPECIALIZE_MAKE_UNSIGNED(char, unsigned char);
+ FMT_SPECIALIZE_MAKE_UNSIGNED(signed char, unsigned char);
+ FMT_SPECIALIZE_MAKE_UNSIGNED(short, unsigned short);
+ FMT_SPECIALIZE_MAKE_UNSIGNED(int, unsigned);
+ FMT_SPECIALIZE_MAKE_UNSIGNED(long, unsigned long);
+ FMT_SPECIALIZE_MAKE_UNSIGNED(LongLong, ULongLong);
+
+ // Casts nonnegative integer to unsigned.
+ template <typename Int>
+ inline typename MakeUnsigned<Int>::Type to_unsigned(Int value)
+ {
+ FMT_ASSERT(value >= 0, "negative value");
+ return static_cast<typename MakeUnsigned<Int>::Type>(value);
+ }
+
+ // The number of characters to store in the MemoryBuffer object itself
+ // to avoid dynamic memory allocation.
+ enum
+ {
+ INLINE_BUFFER_SIZE = 500
+ };
+
+#if FMT_SECURE_SCL
+ // Use checked iterator to avoid warnings on MSVC.
+ template <typename T>
+ inline stdext::checked_array_iterator<T*> make_ptr(T *ptr, std::size_t size)
+ {
+ return stdext::checked_array_iterator<T*>(ptr, size);
+ }
+#else
+ template <typename T>
+ inline T *make_ptr(T *ptr, std::size_t)
+ {
+ return ptr;
+ }
+#endif
+ } // namespace internal
+
+ /**
+ \rst
+ A buffer supporting a subset of ``std::vector``'s operations.
+ \endrst
+ */
+ template <typename T>
+ class Buffer
+ {
+ private:
+ FMT_DISALLOW_COPY_AND_ASSIGN(Buffer);
+
+ protected:
+ T *ptr_;
+ std::size_t size_;
+ std::size_t capacity_;
+
+ Buffer(T *ptr = 0, std::size_t capacity = 0)
+ : ptr_(ptr), size_(0), capacity_(capacity)
+ {}
+
+ /**
+ \rst
+ Increases the buffer capacity to hold at least *size* elements updating
+ ``ptr_`` and ``capacity_``.
+ \endrst
+ */
+ virtual void grow(std::size_t size) = 0;
+
+ public:
+ virtual ~Buffer()
+ {}
+
+ /** Returns the size of this buffer. */
+ std::size_t size() const
+ {
+ return size_;
+ }
+
+ /** Returns the capacity of this buffer. */
+ std::size_t capacity() const
+ {
+ return capacity_;
+ }
+
+ /**
+ Resizes the buffer. If T is a POD type new elements may not be initialized.
+ */
+ void resize(std::size_t new_size)
+ {
+ if (new_size > capacity_)
+ grow(new_size);
+ size_ = new_size;
+ }
+
+ /**
+ \rst
+ Reserves space to store at least *capacity* elements.
+ \endrst
+ */
+ void reserve(std::size_t capacity)
+ {
+ if (capacity > capacity_)
+ grow(capacity);
+ }
+
+ void clear() FMT_NOEXCEPT
+ {
+ size_ = 0;
+ }
+
+ void push_back(const T &value)
+ {
+ if (size_ == capacity_)
+ grow(size_ + 1);
+ ptr_[size_++] = value;
+ }
+
+ /** Appends data to the end of the buffer. */
+ template <typename U>
+ void append(const U *begin, const U *end);
+
+ T &operator[](std::size_t index)
+ {
+ return ptr_[index];
+ }
+ const T &operator[](std::size_t index) const
+ {
+ return ptr_[index];
+ }
+ };
+
+ template <typename T>
+ template <typename U>
+ void Buffer<T>::append(const U *begin, const U *end)
+ {
+ std::size_t new_size = size_ + internal::to_unsigned(end - begin);
+ if (new_size > capacity_)
+ grow(new_size);
+ std::uninitialized_copy(begin, end,
+ internal::make_ptr(ptr_, capacity_) + size_);
+ size_ = new_size;
+ }
+
+ namespace internal {
+
+ // A memory buffer for trivially copyable/constructible types with the first SIZE
+ // elements stored in the object itself.
+ template <typename T, std::size_t SIZE, typename Allocator = std::allocator<T> >
+ class MemoryBuffer: private Allocator, public Buffer<T>
+ {
+ private:
+ T data_[SIZE];
+
+ // Deallocate memory allocated by the buffer.
+ void deallocate()
+ {
+ if (this->ptr_ != data_) Allocator::deallocate(this->ptr_, this->capacity_);
+ }
+
+ protected:
+ void grow(std::size_t size);
+
+ public:
+ explicit MemoryBuffer(const Allocator &alloc = Allocator())
+ : Allocator(alloc), Buffer<T>(data_, SIZE)
+ {}
+ ~MemoryBuffer()
+ {
+ deallocate();
+ }
+
+#if FMT_USE_RVALUE_REFERENCES
+ private:
+ // Move data from other to this buffer.
+ void move(MemoryBuffer &other)
+ {
+ Allocator &this_alloc = *this, &other_alloc = other;
+ this_alloc = std::move(other_alloc);
+ this->size_ = other.size_;
+ this->capacity_ = other.capacity_;
+ if (other.ptr_ == other.data_) {
+ this->ptr_ = data_;
+ std::uninitialized_copy(other.data_, other.data_ + this->size_,
+ make_ptr(data_, this->capacity_));
+ }
+ else {
+ this->ptr_ = other.ptr_;
+ // Set pointer to the inline array so that delete is not called
+ // when deallocating.
+ other.ptr_ = other.data_;
+ }
+ }
+
+ public:
+ MemoryBuffer(MemoryBuffer &&other)
+ {
+ move(other);
+ }
+
+ MemoryBuffer &operator=(MemoryBuffer &&other)
+ {
+ assert(this != &other);
+ deallocate();
+ move(other);
+ return *this;
+ }
+#endif
+
+ // Returns a copy of the allocator associated with this buffer.
+ Allocator get_allocator() const
+ {
+ return *this;
+ }
+ };
+
+ template <typename T, std::size_t SIZE, typename Allocator>
+ void MemoryBuffer<T, SIZE, Allocator>::grow(std::size_t size)
+ {
+ std::size_t new_capacity = this->capacity_ + this->capacity_ / 2;
+ if (size > new_capacity)
+ new_capacity = size;
+ T *new_ptr = this->allocate(new_capacity);
+ // The following code doesn't throw, so the raw pointer above doesn't leak.
+ std::uninitialized_copy(this->ptr_, this->ptr_ + this->size_,
+ make_ptr(new_ptr, new_capacity));
+ std::size_t old_capacity = this->capacity_;
+ T *old_ptr = this->ptr_;
+ this->capacity_ = new_capacity;
+ this->ptr_ = new_ptr;
+ // deallocate may throw (at least in principle), but it doesn't matter since
+ // the buffer already uses the new storage and will deallocate it in case
+ // of exception.
+ if (old_ptr != data_)
+ Allocator::deallocate(old_ptr, old_capacity);
+ }
+
+ // A fixed-size buffer.
+ template <typename Char>
+ class FixedBuffer: public fmt::Buffer<Char>
+ {
+ public:
+ FixedBuffer(Char *array, std::size_t size): fmt::Buffer<Char>(array, size)
+ {}
+
+ protected:
+ FMT_API void grow(std::size_t size);
+ };
+
+ template <typename Char>
+ class BasicCharTraits
+ {
+ public:
+#if FMT_SECURE_SCL
+ typedef stdext::checked_array_iterator<Char*> CharPtr;
+#else
+ typedef Char *CharPtr;
+#endif
+ static Char cast(int value)
+ {
+ return static_cast<Char>(value);
+ }
+ };
+
+ template <typename Char>
+ class CharTraits;
+
+ template <>
+ class CharTraits<char>: public BasicCharTraits<char>
+ {
+ private:
+ // Conversion from wchar_t to char is not allowed.
+ static char convert(wchar_t);
+
+ public:
+ static char convert(char value)
+ {
+ return value;
+ }
+
+ // Formats a floating-point number.
+ template <typename T>
+ FMT_API static int format_float(char *buffer, std::size_t size,
+ const char *format, unsigned width, int precision, T value);
+ };
+
+ template <>
+ class CharTraits<wchar_t>: public BasicCharTraits<wchar_t>
+ {
+ public:
+ static wchar_t convert(char value)
+ {
+ return value;
+ }
+ static wchar_t convert(wchar_t value)
+ {
+ return value;
+ }
+
+ template <typename T>
+ FMT_API static int format_float(wchar_t *buffer, std::size_t size,
+ const wchar_t *format, unsigned width, int precision, T value);
+ };
+
+ // Checks if a number is negative - used to avoid warnings.
+ template <bool IsSigned>
+ struct SignChecker
+ {
+ template <typename T>
+ static bool is_negative(T value)
+ {
+ return value < 0;
+ }
+ };
+
+ template <>
+ struct SignChecker<false>
+ {
+ template <typename T>
+ static bool is_negative(T)
+ {
+ return false;
+ }
+ };
+
+ // Returns true if value is negative, false otherwise.
+ // Same as (value < 0) but doesn't produce warnings if T is an unsigned type.
+ template <typename T>
+ inline bool is_negative(T value)
+ {
+ return SignChecker<std::numeric_limits<T>::is_signed>::is_negative(value);
+ }
+
+ // Selects uint32_t if FitsIn32Bits is true, uint64_t otherwise.
+ template <bool FitsIn32Bits>
+ struct TypeSelector
+ {
+ typedef uint32_t Type;
+ };
+
+ template <>
+ struct TypeSelector<false>
+ {
+ typedef uint64_t Type;
+ };
+
+ template <typename T>
+ struct IntTraits
+ {
+ // Smallest of uint32_t and uint64_t that is large enough to represent
+ // all values of T.
+ typedef typename
+ TypeSelector<std::numeric_limits<T>::digits <= 32>::Type MainType;
+ };
+
+ FMT_API void report_unknown_type(char code, const char *type);
+
+ // Static data is placed in this class template to allow header-only
+ // configuration.
+ template <typename T = void>
+ struct FMT_API BasicData
+ {
+ static const uint32_t POWERS_OF_10_32[];
+ static const uint64_t POWERS_OF_10_64[];
+ static const char DIGITS[];
+ };
+
+#ifndef FMT_USE_EXTERN_TEMPLATES
+ // Clang doesn't have a feature check for extern templates so we check
+ // for variadic templates which were introduced in the same version.
+# define FMT_USE_EXTERN_TEMPLATES (__clang__ && FMT_USE_VARIADIC_TEMPLATES)
+#endif
+
+#if FMT_USE_EXTERN_TEMPLATES && !defined(FMT_HEADER_ONLY)
+ extern template struct BasicData<void>;
+#endif
+
+ typedef BasicData<> Data;
+
+#ifdef FMT_BUILTIN_CLZLL
+ // Returns the number of decimal digits in n. Leading zeros are not counted
+ // except for n == 0 in which case count_digits returns 1.
+ inline unsigned count_digits(uint64_t n)
+ {
+ // Based on http://graphics.stanford.edu/~seander/bithacks.html#IntegerLog10
+ // and the benchmark https://github.com/localvoid/cxx-benchmark-count-digits.
+ int t = (64 - FMT_BUILTIN_CLZLL(n | 1)) * 1233 >> 12;
+ return to_unsigned(t) - (n < Data::POWERS_OF_10_64[t]) + 1;
+ }
+#else
+ // Fallback version of count_digits used when __builtin_clz is not available.
+ inline unsigned count_digits(uint64_t n)
+ {
+ unsigned count = 1;
+ for (;;) {
+ // Integer division is slow so do it for a group of four digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ if (n < 10) return count;
+ if (n < 100) return count + 1;
+ if (n < 1000) return count + 2;
+ if (n < 10000) return count + 3;
+ n /= 10000u;
+ count += 4;
+ }
+ }
+#endif
+
+#ifdef FMT_BUILTIN_CLZ
+ // Optional version of count_digits for better performance on 32-bit platforms.
+ inline unsigned count_digits(uint32_t n)
+ {
+ int t = (32 - FMT_BUILTIN_CLZ(n | 1)) * 1233 >> 12;
+ return to_unsigned(t) - (n < Data::POWERS_OF_10_32[t]) + 1;
+ }
+#endif
+
+ // A functor that doesn't add a thousands separator.
+ struct NoThousandsSep
+ {
+ template <typename Char>
+ void operator()(Char *)
+ {}
+ };
+
+ // A functor that adds a thousands separator.
+ class ThousandsSep
+ {
+ private:
+ fmt::StringRef sep_;
+
+ // Index of a decimal digit with the least significant digit having index 0.
+ unsigned digit_index_;
+
+ public:
+ explicit ThousandsSep(fmt::StringRef sep): sep_(sep), digit_index_(0)
+ {}
+
+ template <typename Char>
+ void operator()(Char *&buffer)
+ {
+ if (++digit_index_ % 3 != 0)
+ return;
+ buffer -= sep_.size();
+ std::uninitialized_copy(sep_.data(), sep_.data() + sep_.size(),
+ internal::make_ptr(buffer, sep_.size()));
+ }
+ };
+
+ // Formats a decimal unsigned integer value writing into buffer.
+ // thousands_sep is a functor that is called after writing each char to
+ // add a thousands separator if necessary.
+ template <typename UInt, typename Char, typename ThousandsSep>
+ inline void format_decimal(Char *buffer, UInt value, unsigned num_digits,
+ ThousandsSep thousands_sep)
+ {
+ buffer += num_digits;
+ while (value >= 100) {
+ // Integer division is slow so do it for a group of two digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ unsigned index = static_cast<unsigned>((value % 100) * 2);
+ value /= 100;
+ *--buffer = Data::DIGITS[index + 1];
+ thousands_sep(buffer);
+ *--buffer = Data::DIGITS[index];
+ thousands_sep(buffer);
+ }
+ if (value < 10) {
+ *--buffer = static_cast<char>('0' + value);
+ return;
+ }
+ unsigned index = static_cast<unsigned>(value * 2);
+ *--buffer = Data::DIGITS[index + 1];
+ thousands_sep(buffer);
+ *--buffer = Data::DIGITS[index];
+ }
+
+ template <typename UInt, typename Char>
+ inline void format_decimal(Char *buffer, UInt value, unsigned num_digits)
+ {
+ return format_decimal(buffer, value, num_digits, NoThousandsSep());
+ }
+
+#ifndef _WIN32
+# define FMT_USE_WINDOWS_H 0
+#elif !defined(FMT_USE_WINDOWS_H)
+# define FMT_USE_WINDOWS_H 1
+#endif
+
+ // Define FMT_USE_WINDOWS_H to 0 to disable use of windows.h.
+ // All the functionality that relies on it will be disabled too.
+#if FMT_USE_WINDOWS_H
+ // A converter from UTF-8 to UTF-16.
+ // It is only provided for Windows since other systems support UTF-8 natively.
+ class UTF8ToUTF16
+ {
+ private:
+ MemoryBuffer<wchar_t, INLINE_BUFFER_SIZE> buffer_;
+
+ public:
+ FMT_API explicit UTF8ToUTF16(StringRef s);
+ operator WStringRef() const
+ {
+ return WStringRef(&buffer_[0], size());
+ }
+ size_t size() const
+ {
+ return buffer_.size() - 1;
+ }
+ const wchar_t *c_str() const
+ {
+ return &buffer_[0];
+ }
+ std::wstring str() const
+ {
+ return std::wstring(&buffer_[0], size());
+ }
+ };
+
+ // A converter from UTF-16 to UTF-8.
+ // It is only provided for Windows since other systems support UTF-8 natively.
+ class UTF16ToUTF8
+ {
+ private:
+ MemoryBuffer<char, INLINE_BUFFER_SIZE> buffer_;
+
+ public:
+ UTF16ToUTF8()
+ {}
+ FMT_API explicit UTF16ToUTF8(WStringRef s);
+ operator StringRef() const
+ {
+ return StringRef(&buffer_[0], size());
+ }
+ size_t size() const
+ {
+ return buffer_.size() - 1;
+ }
+ const char *c_str() const
+ {
+ return &buffer_[0];
+ }
+ std::string str() const
+ {
+ return std::string(&buffer_[0], size());
+ }
+
+ // Performs conversion returning a system error code instead of
+ // throwing exception on conversion error. This method may still throw
+ // in case of memory allocation error.
+ FMT_API int convert(WStringRef s);
+ };
+
+ FMT_API void format_windows_error(fmt::Writer &out, int error_code,
+ fmt::StringRef message) FMT_NOEXCEPT;
+#endif
+
+ // A formatting argument value.
+ struct Value
+ {
+ template <typename Char>
+ struct StringValue
+ {
+ const Char *value;
+ std::size_t size;
+ };
+
+ typedef void(*FormatFunc)(
+ void *formatter, const void *arg, void *format_str_ptr);
+
+ struct CustomValue
+ {
+ const void *value;
+ FormatFunc format;
+ };
+
+ union
+ {
+ int int_value;
+ unsigned uint_value;
+ LongLong long_long_value;
+ ULongLong ulong_long_value;
+ double double_value;
+ long double long_double_value;
+ const void *pointer;
+ StringValue<char> string;
+ StringValue<signed char> sstring;
+ StringValue<unsigned char> ustring;
+ StringValue<wchar_t> wstring;
+ CustomValue custom;
+ };
+
+ enum Type
+ {
+ NONE, NAMED_ARG,
+ // Integer types should go first,
+ INT, UINT, LONG_LONG, ULONG_LONG, BOOL, CHAR, LAST_INTEGER_TYPE = CHAR,
+ // followed by floating-point types.
+ DOUBLE, LONG_DOUBLE, LAST_NUMERIC_TYPE = LONG_DOUBLE,
+ CSTRING, STRING, WSTRING, POINTER, CUSTOM
+ };
+ };
+
+ // A formatting argument. It is a trivially copyable/constructible type to
+ // allow storage in internal::MemoryBuffer.
+ struct Arg: Value
+ {
+ Type type;
+ };
+
+ template <typename Char>
+ struct NamedArg;
+
+ template <typename T = void>
+ struct Null
+ {};
+
+ // A helper class template to enable or disable overloads taking wide
+ // characters and strings in MakeValue.
+ template <typename T, typename Char>
+ struct WCharHelper
+ {
+ typedef Null<T> Supported;
+ typedef T Unsupported;
+ };
+
+ template <typename T>
+ struct WCharHelper<T, wchar_t>
+ {
+ typedef T Supported;
+ typedef Null<T> Unsupported;
+ };
+
+ typedef char Yes[1];
+ typedef char No[2];
+
+ template <typename T>
+ T &get();
+
+ // These are non-members to workaround an overload resolution bug in bcc32.
+ Yes &convert(fmt::ULongLong);
+ No &convert(...);
+
+ template<typename T, bool ENABLE_CONVERSION>
+ struct ConvertToIntImpl
+ {
+ enum
+ {
+ value = ENABLE_CONVERSION
+ };
+ };
+
+ template<typename T, bool ENABLE_CONVERSION>
+ struct ConvertToIntImpl2
+ {
+ enum
+ {
+ value = false
+ };
+ };
+
+ template<typename T>
+ struct ConvertToIntImpl2<T, true>
+ {
+ enum
+ {
+ // Don't convert numeric types.
+ value = ConvertToIntImpl<T, !std::numeric_limits<T>::is_specialized>::value
+ };
+ };
+
+ template<typename T>
+ struct ConvertToInt
+ {
+ enum
+ {
+ enable_conversion = sizeof(convert(get<T>())) == sizeof(Yes)
+ };
+ enum
+ {
+ value = ConvertToIntImpl2<T, enable_conversion>::value
+ };
+ };
+
+#define FMT_DISABLE_CONVERSION_TO_INT(Type) \
+ template <> \
+ struct ConvertToInt<Type> { enum { value = 0 }; }
+
+ // Silence warnings about convering float to int.
+ FMT_DISABLE_CONVERSION_TO_INT(float);
+ FMT_DISABLE_CONVERSION_TO_INT(double);
+ FMT_DISABLE_CONVERSION_TO_INT(long double);
+
+ template<bool B, class T = void>
+ struct EnableIf
+ {};
+
+ template<class T>
+ struct EnableIf<true, T>
+ {
+ typedef T type;
+ };
+
+ template<bool B, class T, class F>
+ struct Conditional
+ {
+ typedef T type;
+ };
+
+ template<class T, class F>
+ struct Conditional<false, T, F>
+ {
+ typedef F type;
+ };
+
+ // For bcc32 which doesn't understand ! in template arguments.
+ template<bool>
+ struct Not
+ {
+ enum
+ {
+ value = 0
+ };
+ };
+
+ template<>
+ struct Not<false>
+ {
+ enum
+ {
+ value = 1
+ };
+ };
+
+ template<typename T, T> struct LConvCheck
+ {
+ LConvCheck(int)
+ {}
+ };
+
+ // Returns the thousands separator for the current locale.
+ // We check if ``lconv`` contains ``thousands_sep`` because on Android
+ // ``lconv`` is stubbed as an empty struct.
+ template <typename LConv>
+ inline StringRef thousands_sep(
+ LConv *lc, LConvCheck<char *LConv::*, &LConv::thousands_sep> = 0)
+ {
+ return lc->thousands_sep;
+ }
+
+ inline fmt::StringRef thousands_sep(...)
+ {
+ return "";
+ }
+
+ // Makes an Arg object from any type.
+ template <typename Formatter>
+ class MakeValue: public Arg
+ {
+ public:
+ typedef typename Formatter::Char Char;
+
+ private:
+ // The following two methods are private to disallow formatting of
+ // arbitrary pointers. If you want to output a pointer cast it to
+ // "void *" or "const void *". In particular, this forbids formatting
+ // of "[const] volatile char *" which is printed as bool by iostreams.
+ // Do not implement!
+ template <typename T>
+ MakeValue(const T *value);
+ template <typename T>
+ MakeValue(T *value);
+
+ // The following methods are private to disallow formatting of wide
+ // characters and strings into narrow strings as in
+ // fmt::format("{}", L"test");
+ // To fix this, use a wide format string: fmt::format(L"{}", L"test").
+#if !FMT_MSC_VER || defined(_NATIVE_WCHAR_T_DEFINED)
+ MakeValue(typename WCharHelper<wchar_t, Char>::Unsupported);
+#endif
+ MakeValue(typename WCharHelper<wchar_t *, Char>::Unsupported);
+ MakeValue(typename WCharHelper<const wchar_t *, Char>::Unsupported);
+ MakeValue(typename WCharHelper<const std::wstring &, Char>::Unsupported);
+ MakeValue(typename WCharHelper<WStringRef, Char>::Unsupported);
+
+ void set_string(StringRef str)
+ {
+ string.value = str.data();
+ string.size = str.size();
+ }
+
+ void set_string(WStringRef str)
+ {
+ wstring.value = str.data();
+ wstring.size = str.size();
+ }
+
+ // Formats an argument of a custom type, such as a user-defined class.
+ template <typename T>
+ static void format_custom_arg(
+ void *formatter, const void *arg, void *format_str_ptr)
+ {
+ format(*static_cast<Formatter*>(formatter),
+ *static_cast<const Char**>(format_str_ptr),
+ *static_cast<const T*>(arg));
+ }
+
+ public:
+ MakeValue()
+ {}
+
+#define FMT_MAKE_VALUE_(Type, field, TYPE, rhs) \
+ MakeValue(Type value) { field = rhs; } \
+ static uint64_t type(Type) { return Arg::TYPE; }
+
+#define FMT_MAKE_VALUE(Type, field, TYPE) \
+ FMT_MAKE_VALUE_(Type, field, TYPE, value)
+
+ FMT_MAKE_VALUE(bool, int_value, BOOL)
+ FMT_MAKE_VALUE(short, int_value, INT)
+ FMT_MAKE_VALUE(unsigned short, uint_value, UINT)
+ FMT_MAKE_VALUE(int, int_value, INT)
+ FMT_MAKE_VALUE(unsigned, uint_value, UINT)
+
+ MakeValue(long value)
+ {
+ // To minimize the number of types we need to deal with, long is
+ // translated either to int or to long long depending on its size.
+ if (const_check(sizeof(long) == sizeof(int)))
+ int_value = static_cast<int>(value);
+ else
+ long_long_value = value;
+ }
+ static uint64_t type(long)
+ {
+ return sizeof(long) == sizeof(int) ? Arg::INT : Arg::LONG_LONG;
+ }
+
+ MakeValue(unsigned long value)
+ {
+ if (const_check(sizeof(unsigned long) == sizeof(unsigned)))
+ uint_value = static_cast<unsigned>(value);
+ else
+ ulong_long_value = value;
+ }
+ static uint64_t type(unsigned long)
+ {
+ return sizeof(unsigned long) == sizeof(unsigned) ?
+ Arg::UINT : Arg::ULONG_LONG;
+ }
+
+ FMT_MAKE_VALUE(LongLong, long_long_value, LONG_LONG)
+ FMT_MAKE_VALUE(ULongLong, ulong_long_value, ULONG_LONG)
+ FMT_MAKE_VALUE(float, double_value, DOUBLE)
+ FMT_MAKE_VALUE(double, double_value, DOUBLE)
+ FMT_MAKE_VALUE(long double, long_double_value, LONG_DOUBLE)
+ FMT_MAKE_VALUE(signed char, int_value, INT)
+ FMT_MAKE_VALUE(unsigned char, uint_value, UINT)
+ FMT_MAKE_VALUE(char, int_value, CHAR)
+
+#if !defined(_MSC_VER) || defined(_NATIVE_WCHAR_T_DEFINED)
+ MakeValue(typename WCharHelper<wchar_t, Char>::Supported value)
+ {
+ int_value = value;
+ }
+ static uint64_t type(wchar_t)
+ {
+ return Arg::CHAR;
+ }
+#endif
+
+#define FMT_MAKE_STR_VALUE(Type, TYPE) \
+ MakeValue(Type value) { set_string(value); } \
+ static uint64_t type(Type) { return Arg::TYPE; }
+
+ FMT_MAKE_VALUE(char *, string.value, CSTRING)
+ FMT_MAKE_VALUE(const char *, string.value, CSTRING)
+ FMT_MAKE_VALUE(const signed char *, sstring.value, CSTRING)
+ FMT_MAKE_VALUE(const unsigned char *, ustring.value, CSTRING)
+ FMT_MAKE_STR_VALUE(const std::string &, STRING)
+ FMT_MAKE_STR_VALUE(StringRef, STRING)
+ FMT_MAKE_VALUE_(CStringRef, string.value, CSTRING, value.c_str())
+
+#define FMT_MAKE_WSTR_VALUE(Type, TYPE) \
+ MakeValue(typename WCharHelper<Type, Char>::Supported value) { \
+ set_string(value); \
+ } \
+ static uint64_t type(Type) { return Arg::TYPE; }
+
+ FMT_MAKE_WSTR_VALUE(wchar_t *, WSTRING)
+ FMT_MAKE_WSTR_VALUE(const wchar_t *, WSTRING)
+ FMT_MAKE_WSTR_VALUE(const std::wstring &, WSTRING)
+ FMT_MAKE_WSTR_VALUE(WStringRef, WSTRING)
+
+ FMT_MAKE_VALUE(void *, pointer, POINTER)
+ FMT_MAKE_VALUE(const void *, pointer, POINTER)
+
+ template <typename T>
+ MakeValue(const T &value,
+ typename EnableIf<Not<
+ ConvertToInt<T>::value>::value, int>::type = 0)
+ {
+ custom.value = &value;
+ custom.format = &format_custom_arg<T>;
+ }
+
+ template <typename T>
+ MakeValue(const T &value,
+ typename EnableIf<ConvertToInt<T>::value, int>::type = 0)
+ {
+ int_value = value;
+ }
+
+ template <typename T>
+ static uint64_t type(const T &)
+ {
+ return ConvertToInt<T>::value ? Arg::INT : Arg::CUSTOM;
+ }
+
+ // Additional template param `Char_` is needed here because make_type always
+ // uses char.
+ template <typename Char_>
+ MakeValue(const NamedArg<Char_> &value)
+ {
+ pointer = &value;
+ }
+
+ template <typename Char_>
+ static uint64_t type(const NamedArg<Char_> &)
+ {
+ return Arg::NAMED_ARG;
+ }
+ };
+
+ template <typename Formatter>
+ class MakeArg: public Arg
+ {
+ public:
+ MakeArg()
+ {
+ type = Arg::NONE;
+ }
+
+ template <typename T>
+ MakeArg(const T &value)
+ : Arg(MakeValue<Formatter>(value))
+ {
+ type = static_cast<Arg::Type>(MakeValue<Formatter>::type(value));
+ }
+ };
+
+ template <typename Char>
+ struct NamedArg: Arg
+ {
+ BasicStringRef<Char> name;
+
+ template <typename T>
+ NamedArg(BasicStringRef<Char> argname, const T &value)
+ : Arg(MakeArg< BasicFormatter<Char> >(value)), name(argname)
+ {}
+ };
+
+ class RuntimeError: public std::runtime_error
+ {
+ protected:
+ RuntimeError(): std::runtime_error("")
+ {}
+ ~RuntimeError() throw();
+ };
+
+ template <typename Impl, typename Char>
+ class BasicPrintfArgFormatter;
+
+ template <typename Char>
+ class ArgMap;
+ } // namespace internal
+
+ /** An argument list. */
+ class ArgList
+ {
+ private:
+ // To reduce compiled code size per formatting function call, types of first
+ // MAX_PACKED_ARGS arguments are passed in the types_ field.
+ uint64_t types_;
+ union
+ {
+ // If the number of arguments is less than MAX_PACKED_ARGS, the argument
+ // values are stored in values_, otherwise they are stored in args_.
+ // This is done to reduce compiled code size as storing larger objects
+ // may require more code (at least on x86-64) even if the same amount of
+ // data is actually copied to stack. It saves ~10% on the bloat test.
+ const internal::Value *values_;
+ const internal::Arg *args_;
+ };
+
+ internal::Arg::Type type(unsigned index) const
+ {
+ unsigned shift = index * 4;
+ uint64_t mask = 0xf;
+ return static_cast<internal::Arg::Type>(
+ (types_ & (mask << shift)) >> shift);
+ }
+
+ template <typename Char>
+ friend class internal::ArgMap;
+
+ public:
+ // Maximum number of arguments with packed types.
+ enum
+ {
+ MAX_PACKED_ARGS = 16
+ };
+
+ ArgList(): types_(0)
+ {}
+
+ ArgList(ULongLong types, const internal::Value *values)
+ : types_(types), values_(values)
+ {}
+ ArgList(ULongLong types, const internal::Arg *args)
+ : types_(types), args_(args)
+ {}
+
+ /** Returns the argument at specified index. */
+ internal::Arg operator[](unsigned index) const
+ {
+ using internal::Arg;
+ Arg arg;
+ bool use_values = type(MAX_PACKED_ARGS - 1) == Arg::NONE;
+ if (index < MAX_PACKED_ARGS) {
+ Arg::Type arg_type = type(index);
+ internal::Value &val = arg;
+ if (arg_type != Arg::NONE)
+ val = use_values ? values_[index] : args_[index];
+ arg.type = arg_type;
+ return arg;
+ }
+ if (use_values) {
+ // The index is greater than the number of arguments that can be stored
+ // in values, so return a "none" argument.
+ arg.type = Arg::NONE;
+ return arg;
+ }
+ for (unsigned i = MAX_PACKED_ARGS; i <= index; ++i) {
+ if (args_[i].type == Arg::NONE)
+ return args_[i];
+ }
+ return args_[index];
+ }
+ };
+
+#define FMT_DISPATCH(call) static_cast<Impl*>(this)->call
+
+ /**
+ \rst
+ An argument visitor based on the `curiously recurring template pattern
+ <http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern>`_.
+
+ To use `~fmt::ArgVisitor` define a subclass that implements some or all of the
+ visit methods with the same signatures as the methods in `~fmt::ArgVisitor`,
+ for example, `~fmt::ArgVisitor::visit_int()`.
+ Pass the subclass as the *Impl* template parameter. Then calling
+ `~fmt::ArgVisitor::visit` for some argument will dispatch to a visit method
+ specific to the argument type. For example, if the argument type is
+ ``double`` then the `~fmt::ArgVisitor::visit_double()` method of a subclass
+ will be called. If the subclass doesn't contain a method with this signature,
+ then a corresponding method of `~fmt::ArgVisitor` will be called.
+
+ **Example**::
+
+ class MyArgVisitor : public fmt::ArgVisitor<MyArgVisitor, void> {
+ public:
+ void visit_int(int value) { fmt::print("{}", value); }
+ void visit_double(double value) { fmt::print("{}", value ); }
+ };
+ \endrst
+ */
+ template <typename Impl, typename Result>
+ class ArgVisitor
+ {
+ private:
+ typedef internal::Arg Arg;
+
+ public:
+ void report_unhandled_arg()
+ {}
+
+ Result visit_unhandled_arg()
+ {
+ FMT_DISPATCH(report_unhandled_arg());
+ return Result();
+ }
+
+ /** Visits an ``int`` argument. **/
+ Result visit_int(int value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits a ``long long`` argument. **/
+ Result visit_long_long(LongLong value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits an ``unsigned`` argument. **/
+ Result visit_uint(unsigned value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits an ``unsigned long long`` argument. **/
+ Result visit_ulong_long(ULongLong value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits a ``bool`` argument. **/
+ Result visit_bool(bool value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits a ``char`` or ``wchar_t`` argument. **/
+ Result visit_char(int value)
+ {
+ return FMT_DISPATCH(visit_any_int(value));
+ }
+
+ /** Visits an argument of any integral type. **/
+ template <typename T>
+ Result visit_any_int(T)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a ``double`` argument. **/
+ Result visit_double(double value)
+ {
+ return FMT_DISPATCH(visit_any_double(value));
+ }
+
+ /** Visits a ``long double`` argument. **/
+ Result visit_long_double(long double value)
+ {
+ return FMT_DISPATCH(visit_any_double(value));
+ }
+
+ /** Visits a ``double`` or ``long double`` argument. **/
+ template <typename T>
+ Result visit_any_double(T)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a null-terminated C string (``const char *``) argument. **/
+ Result visit_cstring(const char *)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a string argument. **/
+ Result visit_string(Arg::StringValue<char>)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a wide string argument. **/
+ Result visit_wstring(Arg::StringValue<wchar_t>)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits a pointer argument. **/
+ Result visit_pointer(const void *)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /** Visits an argument of a custom (user-defined) type. **/
+ Result visit_custom(Arg::CustomValue)
+ {
+ return FMT_DISPATCH(visit_unhandled_arg());
+ }
+
+ /**
+ \rst
+ Visits an argument dispatching to the appropriate visit method based on
+ the argument type. For example, if the argument type is ``double`` then
+ the `~fmt::ArgVisitor::visit_double()` method of the *Impl* class will be
+ called.
+ \endrst
+ */
+ Result visit(const Arg &arg)
+ {
+ switch (arg.type) {
+ case Arg::NONE:
+ case Arg::NAMED_ARG:
+ FMT_ASSERT(false, "invalid argument type");
+ break;
+ case Arg::INT:
+ return FMT_DISPATCH(visit_int(arg.int_value));
+ case Arg::UINT:
+ return FMT_DISPATCH(visit_uint(arg.uint_value));
+ case Arg::LONG_LONG:
+ return FMT_DISPATCH(visit_long_long(arg.long_long_value));
+ case Arg::ULONG_LONG:
+ return FMT_DISPATCH(visit_ulong_long(arg.ulong_long_value));
+ case Arg::BOOL:
+ return FMT_DISPATCH(visit_bool(arg.int_value != 0));
+ case Arg::CHAR:
+ return FMT_DISPATCH(visit_char(arg.int_value));
+ case Arg::DOUBLE:
+ return FMT_DISPATCH(visit_double(arg.double_value));
+ case Arg::LONG_DOUBLE:
+ return FMT_DISPATCH(visit_long_double(arg.long_double_value));
+ case Arg::CSTRING:
+ return FMT_DISPATCH(visit_cstring(arg.string.value));
+ case Arg::STRING:
+ return FMT_DISPATCH(visit_string(arg.string));
+ case Arg::WSTRING:
+ return FMT_DISPATCH(visit_wstring(arg.wstring));
+ case Arg::POINTER:
+ return FMT_DISPATCH(visit_pointer(arg.pointer));
+ case Arg::CUSTOM:
+ return FMT_DISPATCH(visit_custom(arg.custom));
+ }
+ return Result();
+ }
+ };
+
+ enum Alignment
+ {
+ ALIGN_DEFAULT, ALIGN_LEFT, ALIGN_RIGHT, ALIGN_CENTER, ALIGN_NUMERIC
+ };
+
+ // Flags.
+ enum
+ {
+ SIGN_FLAG = 1, PLUS_FLAG = 2, MINUS_FLAG = 4, HASH_FLAG = 8,
+ CHAR_FLAG = 0x10 // Argument has char type - used in error reporting.
+ };
+
+ // An empty format specifier.
+ struct EmptySpec
+ {};
+
+ // A type specifier.
+ template <char TYPE>
+ struct TypeSpec: EmptySpec
+ {
+ Alignment align() const
+ {
+ return ALIGN_DEFAULT;
+ }
+ unsigned width() const
+ {
+ return 0;
+ }
+ int precision() const
+ {
+ return -1;
+ }
+ bool flag(unsigned) const
+ {
+ return false;
+ }
+ char type() const
+ {
+ return TYPE;
+ }
+ char fill() const
+ {
+ return ' ';
+ }
+ };
+
+ // A width specifier.
+ struct WidthSpec
+ {
+ unsigned width_;
+ // Fill is always wchar_t and cast to char if necessary to avoid having
+ // two specialization of WidthSpec and its subclasses.
+ wchar_t fill_;
+
+ WidthSpec(unsigned width, wchar_t fill): width_(width), fill_(fill)
+ {}
+
+ unsigned width() const
+ {
+ return width_;
+ }
+ wchar_t fill() const
+ {
+ return fill_;
+ }
+ };
+
+ // An alignment specifier.
+ struct AlignSpec: WidthSpec
+ {
+ Alignment align_;
+
+ AlignSpec(unsigned width, wchar_t fill, Alignment align = ALIGN_DEFAULT)
+ : WidthSpec(width, fill), align_(align)
+ {}
+
+ Alignment align() const
+ {
+ return align_;
+ }
+
+ int precision() const
+ {
+ return -1;
+ }
+ };
+
+ // An alignment and type specifier.
+ template <char TYPE>
+ struct AlignTypeSpec: AlignSpec
+ {
+ AlignTypeSpec(unsigned width, wchar_t fill): AlignSpec(width, fill)
+ {}
+
+ bool flag(unsigned) const
+ {
+ return false;
+ }
+ char type() const
+ {
+ return TYPE;
+ }
+ };
+
+ // A full format specifier.
+ struct FormatSpec: AlignSpec
+ {
+ unsigned flags_;
+ int precision_;
+ char type_;
+
+ FormatSpec(
+ unsigned width = 0, char type = 0, wchar_t fill = ' ')
+ : AlignSpec(width, fill), flags_(0), precision_(-1), type_(type)
+ {}
+
+ bool flag(unsigned f) const
+ {
+ return (flags_ & f) != 0;
+ }
+ int precision() const
+ {
+ return precision_;
+ }
+ char type() const
+ {
+ return type_;
+ }
+ };
+
+ // An integer format specifier.
+ template <typename T, typename SpecT = TypeSpec<0>, typename Char = char>
+ class IntFormatSpec: public SpecT
+ {
+ private:
+ T value_;
+
+ public:
+ IntFormatSpec(T val, const SpecT &spec = SpecT())
+ : SpecT(spec), value_(val)
+ {}
+
+ T value() const
+ {
+ return value_;
+ }
+ };
+
+ // A string format specifier.
+ template <typename Char>
+ class StrFormatSpec: public AlignSpec
+ {
+ private:
+ const Char *str_;
+
+ public:
+ template <typename FillChar>
+ StrFormatSpec(const Char *str, unsigned width, FillChar fill)
+ : AlignSpec(width, fill), str_(str)
+ {
+ internal::CharTraits<Char>::convert(FillChar());
+ }
+
+ const Char *str() const
+ {
+ return str_;
+ }
+ };
+
+ /**
+ Returns an integer format specifier to format the value in base 2.
+ */
+ IntFormatSpec<int, TypeSpec<'b'> > bin(int value);
+
+ /**
+ Returns an integer format specifier to format the value in base 8.
+ */
+ IntFormatSpec<int, TypeSpec<'o'> > oct(int value);
+
+ /**
+ Returns an integer format specifier to format the value in base 16 using
+ lower-case letters for the digits above 9.
+ */
+ IntFormatSpec<int, TypeSpec<'x'> > hex(int value);
+
+ /**
+ Returns an integer formatter format specifier to format in base 16 using
+ upper-case letters for the digits above 9.
+ */
+ IntFormatSpec<int, TypeSpec<'X'> > hexu(int value);
+
+ /**
+ \rst
+ Returns an integer format specifier to pad the formatted argument with the
+ fill character to the specified width using the default (right) numeric
+ alignment.
+
+ **Example**::
+
+ MemoryWriter out;
+ out << pad(hex(0xcafe), 8, '0');
+ // out.str() == "0000cafe"
+
+ \endrst
+ */
+ template <char TYPE_CODE, typename Char>
+ IntFormatSpec<int, AlignTypeSpec<TYPE_CODE>, Char> pad(
+ int value, unsigned width, Char fill = ' ');
+
+#define FMT_DEFINE_INT_FORMATTERS(TYPE) \
+inline IntFormatSpec<TYPE, TypeSpec<'b'> > bin(TYPE value) { \
+ return IntFormatSpec<TYPE, TypeSpec<'b'> >(value, TypeSpec<'b'>()); \
+} \
+ \
+inline IntFormatSpec<TYPE, TypeSpec<'o'> > oct(TYPE value) { \
+ return IntFormatSpec<TYPE, TypeSpec<'o'> >(value, TypeSpec<'o'>()); \
+} \
+ \
+inline IntFormatSpec<TYPE, TypeSpec<'x'> > hex(TYPE value) { \
+ return IntFormatSpec<TYPE, TypeSpec<'x'> >(value, TypeSpec<'x'>()); \
+} \
+ \
+inline IntFormatSpec<TYPE, TypeSpec<'X'> > hexu(TYPE value) { \
+ return IntFormatSpec<TYPE, TypeSpec<'X'> >(value, TypeSpec<'X'>()); \
+} \
+ \
+template <char TYPE_CODE> \
+inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> > pad( \
+ IntFormatSpec<TYPE, TypeSpec<TYPE_CODE> > f, unsigned width) { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE> >( \
+ f.value(), AlignTypeSpec<TYPE_CODE>(width, ' ')); \
+} \
+ \
+/* For compatibility with older compilers we provide two overloads for pad, */ \
+/* one that takes a fill character and one that doesn't. In the future this */ \
+/* can be replaced with one overload making the template argument Char */ \
+/* default to char (C++11). */ \
+template <char TYPE_CODE, typename Char> \
+inline IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char> pad( \
+ IntFormatSpec<TYPE, TypeSpec<TYPE_CODE>, Char> f, \
+ unsigned width, Char fill) { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<TYPE_CODE>, Char>( \
+ f.value(), AlignTypeSpec<TYPE_CODE>(width, fill)); \
+} \
+ \
+inline IntFormatSpec<TYPE, AlignTypeSpec<0> > pad( \
+ TYPE value, unsigned width) { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<0> >( \
+ value, AlignTypeSpec<0>(width, ' ')); \
+} \
+ \
+template <typename Char> \
+inline IntFormatSpec<TYPE, AlignTypeSpec<0>, Char> pad( \
+ TYPE value, unsigned width, Char fill) { \
+ return IntFormatSpec<TYPE, AlignTypeSpec<0>, Char>( \
+ value, AlignTypeSpec<0>(width, fill)); \
+}
+
+ FMT_DEFINE_INT_FORMATTERS(int)
+ FMT_DEFINE_INT_FORMATTERS(long)
+ FMT_DEFINE_INT_FORMATTERS(unsigned)
+ FMT_DEFINE_INT_FORMATTERS(unsigned long)
+ FMT_DEFINE_INT_FORMATTERS(LongLong)
+ FMT_DEFINE_INT_FORMATTERS(ULongLong)
+
+ /**
+ \rst
+ Returns a string formatter that pads the formatted argument with the fill
+ character to the specified width using the default (left) string alignment.
+
+ **Example**::
+
+ std::string s = str(MemoryWriter() << pad("abc", 8));
+ // s == "abc "
+
+ \endrst
+ */
+ template <typename Char>
+ inline StrFormatSpec<Char> pad(
+ const Char *str, unsigned width, Char fill = ' ')
+ {
+ return StrFormatSpec<Char>(str, width, fill);
+ }
+
+ inline StrFormatSpec<wchar_t> pad(
+ const wchar_t *str, unsigned width, char fill = ' ')
+ {
+ return StrFormatSpec<wchar_t>(str, width, fill);
+ }
+
+ namespace internal {
+
+ template <typename Char>
+ class ArgMap
+ {
+ private:
+ typedef std::vector<
+ std::pair<fmt::BasicStringRef<Char>, internal::Arg> > MapType;
+ typedef typename MapType::value_type Pair;
+
+ MapType map_;
+
+ public:
+ FMT_API void init(const ArgList &args);
+
+ const internal::Arg* find(const fmt::BasicStringRef<Char> &name) const
+ {
+ // The list is unsorted, so just return the first matching name.
+ for (typename MapType::const_iterator it = map_.begin(), end = map_.end();
+ it != end; ++it) {
+ if (it->first == name)
+ return &it->second;
+ }
+ return 0;
+ }
+ };
+
+ template <typename Impl, typename Char>
+ class ArgFormatterBase: public ArgVisitor<Impl, void>
+ {
+ private:
+ BasicWriter<Char> &writer_;
+ FormatSpec &spec_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(ArgFormatterBase);
+
+ void write_pointer(const void *p)
+ {
+ spec_.flags_ = HASH_FLAG;
+ spec_.type_ = 'x';
+ writer_.write_int(reinterpret_cast<uintptr_t>(p), spec_);
+ }
+
+ protected:
+ BasicWriter<Char> &writer()
+ {
+ return writer_;
+ }
+ FormatSpec &spec()
+ {
+ return spec_;
+ }
+
+ void write(bool value)
+ {
+ const char *str_value = value ? "true" : "false";
+ Arg::StringValue<char> str = { str_value, std::strlen(str_value) };
+ writer_.write_str(str, spec_);
+ }
+
+ void write(const char *value)
+ {
+ Arg::StringValue<char> str = { value, value != 0 ? std::strlen(value) : 0 };
+ writer_.write_str(str, spec_);
+ }
+
+ public:
+ ArgFormatterBase(BasicWriter<Char> &w, FormatSpec &s)
+ : writer_(w), spec_(s)
+ {}
+
+ template <typename T>
+ void visit_any_int(T value)
+ {
+ writer_.write_int(value, spec_);
+ }
+
+ template <typename T>
+ void visit_any_double(T value)
+ {
+ writer_.write_double(value, spec_);
+ }
+
+ void visit_bool(bool value)
+ {
+ if (spec_.type_)
+ return visit_any_int(value);
+ write(value);
+ }
+
+ void visit_char(int value)
+ {
+ if (spec_.type_ && spec_.type_ != 'c') {
+ spec_.flags_ |= CHAR_FLAG;
+ writer_.write_int(value, spec_);
+ return;
+ }
+ if (spec_.align_ == ALIGN_NUMERIC || spec_.flags_ != 0)
+ FMT_THROW(FormatError("invalid format specifier for char"));
+ typedef typename BasicWriter<Char>::CharPtr CharPtr;
+ Char fill = internal::CharTraits<Char>::cast(spec_.fill());
+ CharPtr out = CharPtr();
+ const unsigned CHAR_WIDTH = 1;
+ if (spec_.width_ > CHAR_WIDTH) {
+ out = writer_.grow_buffer(spec_.width_);
+ if (spec_.align_ == ALIGN_RIGHT) {
+ std::uninitialized_fill_n(out, spec_.width_ - CHAR_WIDTH, fill);
+ out += spec_.width_ - CHAR_WIDTH;
+ }
+ else if (spec_.align_ == ALIGN_CENTER) {
+ out = writer_.fill_padding(out, spec_.width_,
+ internal::const_check(CHAR_WIDTH), fill);
+ }
+ else {
+ std::uninitialized_fill_n(out + CHAR_WIDTH,
+ spec_.width_ - CHAR_WIDTH, fill);
+ }
+ }
+ else {
+ out = writer_.grow_buffer(CHAR_WIDTH);
+ }
+ *out = internal::CharTraits<Char>::cast(value);
+ }
+
+ void visit_cstring(const char *value)
+ {
+ if (spec_.type_ == 'p')
+ return write_pointer(value);
+ write(value);
+ }
+
+ void visit_string(Arg::StringValue<char> value)
+ {
+ writer_.write_str(value, spec_);
+ }
+
+ using ArgVisitor<Impl, void>::visit_wstring;
+
+ void visit_wstring(Arg::StringValue<Char> value)
+ {
+ writer_.write_str(value, spec_);
+ }
+
+ void visit_pointer(const void *value)
+ {
+ if (spec_.type_ && spec_.type_ != 'p')
+ report_unknown_type(spec_.type_, "pointer");
+ write_pointer(value);
+ }
+ };
+
+ class FormatterBase
+ {
+ private:
+ ArgList args_;
+ int next_arg_index_;
+
+ // Returns the argument with specified index.
+ FMT_API Arg do_get_arg(unsigned arg_index, const char *&error);
+
+ protected:
+ const ArgList &args() const
+ {
+ return args_;
+ }
+
+ explicit FormatterBase(const ArgList &args)
+ {
+ args_ = args;
+ next_arg_index_ = 0;
+ }
+
+ // Returns the next argument.
+ Arg next_arg(const char *&error)
+ {
+ if (next_arg_index_ >= 0)
+ return do_get_arg(internal::to_unsigned(next_arg_index_++), error);
+ error = "cannot switch from manual to automatic argument indexing";
+ return Arg();
+ }
+
+ // Checks if manual indexing is used and returns the argument with
+ // specified index.
+ Arg get_arg(unsigned arg_index, const char *&error)
+ {
+ return check_no_auto_index(error) ? do_get_arg(arg_index, error) : Arg();
+ }
+
+ bool check_no_auto_index(const char *&error)
+ {
+ if (next_arg_index_ > 0) {
+ error = "cannot switch from automatic to manual argument indexing";
+ return false;
+ }
+ next_arg_index_ = -1;
+ return true;
+ }
+
+ template <typename Char>
+ void write(BasicWriter<Char> &w, const Char *start, const Char *end)
+ {
+ if (start != end)
+ w << BasicStringRef<Char>(start, internal::to_unsigned(end - start));
+ }
+ };
+ } // namespace internal
+
+ /**
+ \rst
+ An argument formatter based on the `curiously recurring template pattern
+ <http://en.wikipedia.org/wiki/Curiously_recurring_template_pattern>`_.
+
+ To use `~fmt::BasicArgFormatter` define a subclass that implements some or
+ all of the visit methods with the same signatures as the methods in
+ `~fmt::ArgVisitor`, for example, `~fmt::ArgVisitor::visit_int()`.
+ Pass the subclass as the *Impl* template parameter. When a formatting
+ function processes an argument, it will dispatch to a visit method
+ specific to the argument type. For example, if the argument type is
+ ``double`` then the `~fmt::ArgVisitor::visit_double()` method of a subclass
+ will be called. If the subclass doesn't contain a method with this signature,
+ then a corresponding method of `~fmt::BasicArgFormatter` or its superclass
+ will be called.
+ \endrst
+ */
+ template <typename Impl, typename Char>
+ class BasicArgFormatter: public internal::ArgFormatterBase<Impl, Char>
+ {
+ private:
+ BasicFormatter<Char, Impl> &formatter_;
+ const Char *format_;
+
+ public:
+ /**
+ \rst
+ Constructs an argument formatter object.
+ *formatter* is a reference to the main formatter object, *spec* contains
+ format specifier information for standard argument types, and *fmt* points
+ to the part of the format string being parsed for custom argument types.
+ \endrst
+ */
+ BasicArgFormatter(BasicFormatter<Char, Impl> &formatter,
+ FormatSpec &spec, const Char *fmt)
+ : internal::ArgFormatterBase<Impl, Char>(formatter.writer(), spec),
+ formatter_(formatter), format_(fmt)
+ {}
+
+ /** Formats argument of a custom (user-defined) type. */
+ void visit_custom(internal::Arg::CustomValue c)
+ {
+ c.format(&formatter_, c.value, &format_);
+ }
+ };
+
+ /** The default argument formatter. */
+ template <typename Char>
+ class ArgFormatter: public BasicArgFormatter<ArgFormatter<Char>, Char>
+ {
+ public:
+ /** Constructs an argument formatter object. */
+ ArgFormatter(BasicFormatter<Char> &formatter,
+ FormatSpec &spec, const Char *fmt)
+ : BasicArgFormatter<ArgFormatter<Char>, Char>(formatter, spec, fmt)
+ {}
+ };
+
+ /** This template formats data and writes the output to a writer. */
+ template <typename CharType, typename ArgFormatter>
+ class BasicFormatter: private internal::FormatterBase
+ {
+ public:
+ /** The character type for the output. */
+ typedef CharType Char;
+
+ private:
+ BasicWriter<Char> &writer_;
+ internal::ArgMap<Char> map_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(BasicFormatter);
+
+ using internal::FormatterBase::get_arg;
+
+ // Checks if manual indexing is used and returns the argument with
+ // specified name.
+ internal::Arg get_arg(BasicStringRef<Char> arg_name, const char *&error);
+
+ // Parses argument index and returns corresponding argument.
+ internal::Arg parse_arg_index(const Char *&s);
+
+ // Parses argument name and returns corresponding argument.
+ internal::Arg parse_arg_name(const Char *&s);
+
+ public:
+ /**
+ \rst
+ Constructs a ``BasicFormatter`` object. References to the arguments and
+ the writer are stored in the formatter object so make sure they have
+ appropriate lifetimes.
+ \endrst
+ */
+ BasicFormatter(const ArgList &args, BasicWriter<Char> &w)
+ : internal::FormatterBase(args), writer_(w)
+ {}
+
+ /** Returns a reference to the writer associated with this formatter. */
+ BasicWriter<Char> &writer()
+ {
+ return writer_;
+ }
+
+ /** Formats stored arguments and writes the output to the writer. */
+ void format(BasicCStringRef<Char> format_str);
+
+ // Formats a single argument and advances format_str, a format string pointer.
+ const Char *format(const Char *&format_str, const internal::Arg &arg);
+ };
+
+ // Generates a comma-separated list with results of applying f to
+ // numbers 0..n-1.
+# define FMT_GEN(n, f) FMT_GEN##n(f)
+# define FMT_GEN1(f) f(0)
+# define FMT_GEN2(f) FMT_GEN1(f), f(1)
+# define FMT_GEN3(f) FMT_GEN2(f), f(2)
+# define FMT_GEN4(f) FMT_GEN3(f), f(3)
+# define FMT_GEN5(f) FMT_GEN4(f), f(4)
+# define FMT_GEN6(f) FMT_GEN5(f), f(5)
+# define FMT_GEN7(f) FMT_GEN6(f), f(6)
+# define FMT_GEN8(f) FMT_GEN7(f), f(7)
+# define FMT_GEN9(f) FMT_GEN8(f), f(8)
+# define FMT_GEN10(f) FMT_GEN9(f), f(9)
+# define FMT_GEN11(f) FMT_GEN10(f), f(10)
+# define FMT_GEN12(f) FMT_GEN11(f), f(11)
+# define FMT_GEN13(f) FMT_GEN12(f), f(12)
+# define FMT_GEN14(f) FMT_GEN13(f), f(13)
+# define FMT_GEN15(f) FMT_GEN14(f), f(14)
+
+ namespace internal {
+ inline uint64_t make_type()
+ {
+ return 0;
+ }
+
+ template <typename T>
+ inline uint64_t make_type(const T &arg)
+ {
+ return MakeValue< BasicFormatter<char> >::type(arg);
+ }
+
+ template <unsigned N, bool/*IsPacked*/ = (N < ArgList::MAX_PACKED_ARGS)>
+ struct ArgArray;
+
+ template <unsigned N>
+ struct ArgArray<N, true/*IsPacked*/>
+ {
+ typedef Value Type[N > 0 ? N : 1];
+
+ template <typename Formatter, typename T>
+ static Value make(const T &value)
+ {
+#ifdef __clang__
+ Value result = MakeValue<Formatter>(value);
+ // Workaround a bug in Apple LLVM version 4.2 (clang-425.0.28) of clang:
+ // https://github.com/fmtlib/fmt/issues/276
+ (void)result.custom.format;
+ return result;
+#else
+ return MakeValue<Formatter>(value);
+#endif
+ }
+ };
+
+ template <unsigned N>
+ struct ArgArray<N, false/*IsPacked*/>
+ {
+ typedef Arg Type[N + 1]; // +1 for the list end Arg::NONE
+
+ template <typename Formatter, typename T>
+ static Arg make(const T &value)
+ {
+ return MakeArg<Formatter>(value);
+ }
+ };
+
+#if FMT_USE_VARIADIC_TEMPLATES
+ template <typename Arg, typename... Args>
+ inline uint64_t make_type(const Arg &first, const Args & ... tail)
+ {
+ return make_type(first) | (make_type(tail...) << 4);
+ }
+
+#else
+
+ struct ArgType
+ {
+ uint64_t type;
+
+ ArgType(): type(0)
+ {}
+
+ template <typename T>
+ ArgType(const T &arg) : type(make_type(arg))
+ {}
+ };
+
+# define FMT_ARG_TYPE_DEFAULT(n) ArgType t##n = ArgType()
+
+ inline uint64_t make_type(FMT_GEN15(FMT_ARG_TYPE_DEFAULT))
+ {
+ return t0.type | (t1.type << 4) | (t2.type << 8) | (t3.type << 12) |
+ (t4.type << 16) | (t5.type << 20) | (t6.type << 24) | (t7.type << 28) |
+ (t8.type << 32) | (t9.type << 36) | (t10.type << 40) | (t11.type << 44) |
+ (t12.type << 48) | (t13.type << 52) | (t14.type << 56);
+ }
+#endif
+ } // namespace internal
+
+# define FMT_MAKE_TEMPLATE_ARG(n) typename T##n
+# define FMT_MAKE_ARG_TYPE(n) T##n
+# define FMT_MAKE_ARG(n) const T##n &v##n
+# define FMT_ASSIGN_char(n) \
+ arr[n] = fmt::internal::MakeValue< fmt::BasicFormatter<char> >(v##n)
+# define FMT_ASSIGN_wchar_t(n) \
+ arr[n] = fmt::internal::MakeValue< fmt::BasicFormatter<wchar_t> >(v##n)
+
+#if FMT_USE_VARIADIC_TEMPLATES
+ // Defines a variadic function returning void.
+# define FMT_VARIADIC_VOID(func, arg_type) \
+ template <typename... Args> \
+ void func(arg_type arg0, const Args & ... args) { \
+ typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
+ typename ArgArray::Type array{ \
+ ArgArray::template make<fmt::BasicFormatter<Char> >(args)...}; \
+ func(arg0, fmt::ArgList(fmt::internal::make_type(args...), array)); \
+ }
+
+ // Defines a variadic constructor.
+# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
+ template <typename... Args> \
+ ctor(arg0_type arg0, arg1_type arg1, const Args & ... args) { \
+ typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
+ typename ArgArray::Type array{ \
+ ArgArray::template make<fmt::BasicFormatter<Char> >(args)...}; \
+ func(arg0, arg1, fmt::ArgList(fmt::internal::make_type(args...), array)); \
+ }
+
+#else
+
+# define FMT_MAKE_REF(n) \
+ fmt::internal::MakeValue< fmt::BasicFormatter<Char> >(v##n)
+# define FMT_MAKE_REF2(n) v##n
+
+ // Defines a wrapper for a function taking one argument of type arg_type
+ // and n additional arguments of arbitrary types.
+# define FMT_WRAP1(func, arg_type, n) \
+ template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
+ inline void func(arg_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
+ const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
+ func(arg1, fmt::ArgList( \
+ fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
+ }
+
+ // Emulates a variadic function returning void on a pre-C++11 compiler.
+# define FMT_VARIADIC_VOID(func, arg_type) \
+ inline void func(arg_type arg) { func(arg, fmt::ArgList()); } \
+ FMT_WRAP1(func, arg_type, 1) FMT_WRAP1(func, arg_type, 2) \
+ FMT_WRAP1(func, arg_type, 3) FMT_WRAP1(func, arg_type, 4) \
+ FMT_WRAP1(func, arg_type, 5) FMT_WRAP1(func, arg_type, 6) \
+ FMT_WRAP1(func, arg_type, 7) FMT_WRAP1(func, arg_type, 8) \
+ FMT_WRAP1(func, arg_type, 9) FMT_WRAP1(func, arg_type, 10)
+
+# define FMT_CTOR(ctor, func, arg0_type, arg1_type, n) \
+ template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
+ ctor(arg0_type arg0, arg1_type arg1, FMT_GEN(n, FMT_MAKE_ARG)) { \
+ const fmt::internal::ArgArray<n>::Type array = {FMT_GEN(n, FMT_MAKE_REF)}; \
+ func(arg0, arg1, fmt::ArgList( \
+ fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), array)); \
+ }
+
+ // Emulates a variadic constructor on a pre-C++11 compiler.
+# define FMT_VARIADIC_CTOR(ctor, func, arg0_type, arg1_type) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 1) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 2) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 3) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 4) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 5) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 6) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 7) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 8) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 9) \
+ FMT_CTOR(ctor, func, arg0_type, arg1_type, 10)
+#endif
+
+ // Generates a comma-separated list with results of applying f to pairs
+ // (argument, index).
+#define FMT_FOR_EACH1(f, x0) f(x0, 0)
+#define FMT_FOR_EACH2(f, x0, x1) \
+ FMT_FOR_EACH1(f, x0), f(x1, 1)
+#define FMT_FOR_EACH3(f, x0, x1, x2) \
+ FMT_FOR_EACH2(f, x0 ,x1), f(x2, 2)
+#define FMT_FOR_EACH4(f, x0, x1, x2, x3) \
+ FMT_FOR_EACH3(f, x0, x1, x2), f(x3, 3)
+#define FMT_FOR_EACH5(f, x0, x1, x2, x3, x4) \
+ FMT_FOR_EACH4(f, x0, x1, x2, x3), f(x4, 4)
+#define FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5) \
+ FMT_FOR_EACH5(f, x0, x1, x2, x3, x4), f(x5, 5)
+#define FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6) \
+ FMT_FOR_EACH6(f, x0, x1, x2, x3, x4, x5), f(x6, 6)
+#define FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7) \
+ FMT_FOR_EACH7(f, x0, x1, x2, x3, x4, x5, x6), f(x7, 7)
+#define FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8) \
+ FMT_FOR_EACH8(f, x0, x1, x2, x3, x4, x5, x6, x7), f(x8, 8)
+#define FMT_FOR_EACH10(f, x0, x1, x2, x3, x4, x5, x6, x7, x8, x9) \
+ FMT_FOR_EACH9(f, x0, x1, x2, x3, x4, x5, x6, x7, x8), f(x9, 9)
+
+ /**
+ An error returned by an operating system or a language runtime,
+ for example a file opening error.
+ */
+ class SystemError: public internal::RuntimeError
+ {
+ private:
+ void init(int err_code, CStringRef format_str, ArgList args);
+
+ protected:
+ int error_code_;
+
+ typedef char Char; // For FMT_VARIADIC_CTOR.
+
+ SystemError()
+ {}
+
+ public:
+ /**
+ \rst
+ Constructs a :class:`fmt::SystemError` object with a description
+ formatted with `fmt::format_system_error`. *message* and additional
+ arguments passed into the constructor are formatted similarly to
+ `fmt::format`.
+
+ **Example**::
+
+ // This throws a SystemError with the description
+ // cannot open file 'madeup': No such file or directory
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ std::FILE *file = std::fopen(filename, "r");
+ if (!file)
+ throw fmt::SystemError(errno, "cannot open file '{}'", filename);
+ \endrst
+ */
+ SystemError(int error_code, CStringRef message)
+ {
+ init(error_code, message, ArgList());
+ }
+ FMT_VARIADIC_CTOR(SystemError, init, int, CStringRef)
+
+ ~SystemError() throw();
+
+ int error_code() const
+ {
+ return error_code_;
+ }
+ };
+
+ /**
+ \rst
+ Formats an error returned by an operating system or a language runtime,
+ for example a file opening error, and writes it to *out* in the following
+ form:
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the passed message and *<system-message>* is
+ the system message corresponding to the error code.
+ *error_code* is a system error code as given by ``errno``.
+ If *error_code* is not a valid error code such as -1, the system message
+ may look like "Unknown error -1" and is platform-dependent.
+ \endrst
+ */
+ FMT_API void format_system_error(fmt::Writer &out, int error_code,
+ fmt::StringRef message) FMT_NOEXCEPT;
+
+ /**
+ \rst
+ This template provides operations for formatting and writing data into
+ a character stream. The output is stored in a buffer provided by a subclass
+ such as :class:`fmt::BasicMemoryWriter`.
+
+ You can use one of the following typedefs for common character types:
+
+ +---------+----------------------+
+ | Type | Definition |
+ +=========+======================+
+ | Writer | BasicWriter<char> |
+ +---------+----------------------+
+ | WWriter | BasicWriter<wchar_t> |
+ +---------+----------------------+
+
+ \endrst
+ */
+ template <typename Char>
+ class BasicWriter
+ {
+ private:
+ // Output buffer.
+ Buffer<Char> &buffer_;
+
+ FMT_DISALLOW_COPY_AND_ASSIGN(BasicWriter);
+
+ typedef typename internal::CharTraits<Char>::CharPtr CharPtr;
+
+#if FMT_SECURE_SCL
+ // Returns pointer value.
+ static Char *get(CharPtr p)
+ {
+ return p.base();
+ }
+#else
+ static Char *get(Char *p)
+ {
+ return p;
+ }
+#endif
+
+ // Fills the padding around the content and returns the pointer to the
+ // content area.
+ static CharPtr fill_padding(CharPtr buffer,
+ unsigned total_size, std::size_t content_size, wchar_t fill);
+
+ // Grows the buffer by n characters and returns a pointer to the newly
+ // allocated area.
+ CharPtr grow_buffer(std::size_t n)
+ {
+ std::size_t size = buffer_.size();
+ buffer_.resize(size + n);
+ return internal::make_ptr(&buffer_[size], n);
+ }
+
+ // Writes an unsigned decimal integer.
+ template <typename UInt>
+ Char *write_unsigned_decimal(UInt value, unsigned prefix_size = 0)
+ {
+ unsigned num_digits = internal::count_digits(value);
+ Char *ptr = get(grow_buffer(prefix_size + num_digits));
+ internal::format_decimal(ptr + prefix_size, value, num_digits);
+ return ptr;
+ }
+
+ // Writes a decimal integer.
+ template <typename Int>
+ void write_decimal(Int value)
+ {
+ typedef typename internal::IntTraits<Int>::MainType MainType;
+ MainType abs_value = static_cast<MainType>(value);
+ if (internal::is_negative(value)) {
+ abs_value = 0 - abs_value;
+ *write_unsigned_decimal(abs_value, 1) = '-';
+ }
+ else {
+ write_unsigned_decimal(abs_value, 0);
+ }
+ }
+
+ // Prepare a buffer for integer formatting.
+ CharPtr prepare_int_buffer(unsigned num_digits,
+ const EmptySpec &, const char *prefix, unsigned prefix_size)
+ {
+ unsigned size = prefix_size + num_digits;
+ CharPtr p = grow_buffer(size);
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ return p + size - 1;
+ }
+
+ template <typename Spec>
+ CharPtr prepare_int_buffer(unsigned num_digits,
+ const Spec &spec, const char *prefix, unsigned prefix_size);
+
+ // Formats an integer.
+ template <typename T, typename Spec>
+ void write_int(T value, Spec spec);
+
+ // Formats a floating-point number (double or long double).
+ template <typename T>
+ void write_double(T value, const FormatSpec &spec);
+
+ // Writes a formatted string.
+ template <typename StrChar>
+ CharPtr write_str(const StrChar *s, std::size_t size, const AlignSpec &spec);
+
+ template <typename StrChar>
+ void write_str(const internal::Arg::StringValue<StrChar> &str,
+ const FormatSpec &spec);
+
+ // This following methods are private to disallow writing wide characters
+ // and strings to a char stream. If you want to print a wide string as a
+ // pointer as std::ostream does, cast it to const void*.
+ // Do not implement!
+ void operator<<(typename internal::WCharHelper<wchar_t, Char>::Unsupported);
+ void operator<<(
+ typename internal::WCharHelper<const wchar_t *, Char>::Unsupported);
+
+ // Appends floating-point length specifier to the format string.
+ // The second argument is only used for overload resolution.
+ void append_float_length(Char *&format_ptr, long double)
+ {
+ *format_ptr++ = 'L';
+ }
+
+ template<typename T>
+ void append_float_length(Char *&, T)
+ {}
+
+ template <typename Impl, typename Char_>
+ friend class internal::ArgFormatterBase;
+
+ template <typename Impl, typename Char_>
+ friend class internal::BasicPrintfArgFormatter;
+
+ protected:
+ /**
+ Constructs a ``BasicWriter`` object.
+ */
+ explicit BasicWriter(Buffer<Char> &b): buffer_(b)
+ {}
+
+ public:
+ /**
+ \rst
+ Destroys a ``BasicWriter`` object.
+ \endrst
+ */
+ virtual ~BasicWriter()
+ {}
+
+ /**
+ Returns the total number of characters written.
+ */
+ std::size_t size() const
+ {
+ return buffer_.size();
+ }
+
+ /**
+ Returns a pointer to the output buffer content. No terminating null
+ character is appended.
+ */
+ const Char *data() const FMT_NOEXCEPT
+ {
+ return &buffer_[0];
+ }
+
+ /**
+ Returns a pointer to the output buffer content with terminating null
+ character appended.
+ */
+ const Char *c_str() const
+ {
+ std::size_t size = buffer_.size();
+ buffer_.reserve(size + 1);
+ buffer_[size] = '\0';
+ return &buffer_[0];
+ }
+
+ /**
+ \rst
+ Returns the content of the output buffer as an `std::string`.
+ \endrst
+ */
+ std::basic_string<Char> str() const
+ {
+ return std::basic_string<Char>(&buffer_[0], buffer_.size());
+ }
+
+ /**
+ \rst
+ Writes formatted data.
+
+ *args* is an argument list representing arbitrary arguments.
+
+ **Example**::
+
+ MemoryWriter out;
+ out.write("Current point:\n");
+ out.write("({:+f}, {:+f})", -3.14, 3.14);
+
+ This will write the following output to the ``out`` object:
+
+ .. code-block:: none
+
+ Current point:
+ (-3.140000, +3.140000)
+
+ The output can be accessed using :func:`data()`, :func:`c_str` or
+ :func:`str` methods.
+
+ See also :ref:`syntax`.
+ \endrst
+ */
+ void write(BasicCStringRef<Char> format, ArgList args)
+ {
+ BasicFormatter<Char>(args, *this).format(format);
+ }
+ FMT_VARIADIC_VOID(write, BasicCStringRef<Char>)
+
+ BasicWriter &operator<<(int value)
+ {
+ write_decimal(value);
+ return *this;
+ }
+ BasicWriter &operator<<(unsigned value)
+ {
+ return *this << IntFormatSpec<unsigned>(value);
+ }
+ BasicWriter &operator<<(long value)
+ {
+ write_decimal(value);
+ return *this;
+ }
+ BasicWriter &operator<<(unsigned long value)
+ {
+ return *this << IntFormatSpec<unsigned long>(value);
+ }
+ BasicWriter &operator<<(LongLong value)
+ {
+ write_decimal(value);
+ return *this;
+ }
+
+ /**
+ \rst
+ Formats *value* and writes it to the stream.
+ \endrst
+ */
+ BasicWriter &operator<<(ULongLong value)
+ {
+ return *this << IntFormatSpec<ULongLong>(value);
+ }
+
+ BasicWriter &operator<<(double value)
+ {
+ write_double(value, FormatSpec());
+ return *this;
+ }
+
+ /**
+ \rst
+ Formats *value* using the general format for floating-point numbers
+ (``'g'``) and writes it to the stream.
+ \endrst
+ */
+ BasicWriter &operator<<(long double value)
+ {
+ write_double(value, FormatSpec());
+ return *this;
+ }
+
+ /**
+ Writes a character to the stream.
+ */
+ BasicWriter &operator<<(char value)
+ {
+ buffer_.push_back(value);
+ return *this;
+ }
+
+ BasicWriter &operator<<(
+ typename internal::WCharHelper<wchar_t, Char>::Supported value)
+ {
+ buffer_.push_back(value);
+ return *this;
+ }
+
+ /**
+ \rst
+ Writes *value* to the stream.
+ \endrst
+ */
+ BasicWriter &operator<<(fmt::BasicStringRef<Char> value)
+ {
+ const Char *str = value.data();
+ buffer_.append(str, str + value.size());
+ return *this;
+ }
+
+ BasicWriter &operator<<(
+ typename internal::WCharHelper<StringRef, Char>::Supported value)
+ {
+ const char *str = value.data();
+ buffer_.append(str, str + value.size());
+ return *this;
+ }
+
+ template <typename T, typename Spec, typename FillChar>
+ BasicWriter &operator<<(IntFormatSpec<T, Spec, FillChar> spec)
+ {
+ internal::CharTraits<Char>::convert(FillChar());
+ write_int(spec.value(), spec);
+ return *this;
+ }
+
+ template <typename StrChar>
+ BasicWriter &operator<<(const StrFormatSpec<StrChar> &spec)
+ {
+ const StrChar *s = spec.str();
+ write_str(s, std::char_traits<Char>::length(s), spec);
+ return *this;
+ }
+
+ void clear() FMT_NOEXCEPT
+ {
+ buffer_.clear();
+ }
+
+ Buffer<Char> &buffer() FMT_NOEXCEPT
+ {
+ return buffer_;
+ }
+ };
+
+ template <typename Char>
+ template <typename StrChar>
+ typename BasicWriter<Char>::CharPtr BasicWriter<Char>::write_str(
+ const StrChar *s, std::size_t size, const AlignSpec &spec)
+ {
+ CharPtr out = CharPtr();
+ if (spec.width() > size) {
+ out = grow_buffer(spec.width());
+ Char fill = internal::CharTraits<Char>::cast(spec.fill());
+ if (spec.align() == ALIGN_RIGHT) {
+ std::uninitialized_fill_n(out, spec.width() - size, fill);
+ out += spec.width() - size;
+ }
+ else if (spec.align() == ALIGN_CENTER) {
+ out = fill_padding(out, spec.width(), size, fill);
+ }
+ else {
+ std::uninitialized_fill_n(out + size, spec.width() - size, fill);
+ }
+ }
+ else {
+ out = grow_buffer(size);
+ }
+ std::uninitialized_copy(s, s + size, out);
+ return out;
+ }
+
+ template <typename Char>
+ template <typename StrChar>
+ void BasicWriter<Char>::write_str(
+ const internal::Arg::StringValue<StrChar> &s, const FormatSpec &spec)
+ {
+ // Check if StrChar is convertible to Char.
+ internal::CharTraits<Char>::convert(StrChar());
+ if (spec.type_ && spec.type_ != 's')
+ internal::report_unknown_type(spec.type_, "string");
+ const StrChar *str_value = s.value;
+ std::size_t str_size = s.size;
+ if (str_size == 0) {
+ if (!str_value) {
+ FMT_THROW(FormatError("string pointer is null"));
+ return;
+ }
+ }
+ std::size_t precision = static_cast<std::size_t>(spec.precision_);
+ if (spec.precision_ >= 0 && precision < str_size)
+ str_size = precision;
+ write_str(str_value, str_size, spec);
+ }
+
+ template <typename Char>
+ typename BasicWriter<Char>::CharPtr
+ BasicWriter<Char>::fill_padding(
+ CharPtr buffer, unsigned total_size,
+ std::size_t content_size, wchar_t fill)
+ {
+ std::size_t padding = total_size - content_size;
+ std::size_t left_padding = padding / 2;
+ Char fill_char = internal::CharTraits<Char>::cast(fill);
+ std::uninitialized_fill_n(buffer, left_padding, fill_char);
+ buffer += left_padding;
+ CharPtr content = buffer;
+ std::uninitialized_fill_n(buffer + content_size,
+ padding - left_padding, fill_char);
+ return content;
+ }
+
+ template <typename Char>
+ template <typename Spec>
+ typename BasicWriter<Char>::CharPtr
+ BasicWriter<Char>::prepare_int_buffer(
+ unsigned num_digits, const Spec &spec,
+ const char *prefix, unsigned prefix_size)
+ {
+ unsigned width = spec.width();
+ Alignment align = spec.align();
+ Char fill = internal::CharTraits<Char>::cast(spec.fill());
+ if (spec.precision() > static_cast<int>(num_digits)) {
+ // Octal prefix '0' is counted as a digit, so ignore it if precision
+ // is specified.
+ if (prefix_size > 0 && prefix[prefix_size - 1] == '0')
+ --prefix_size;
+ unsigned number_size =
+ prefix_size + internal::to_unsigned(spec.precision());
+ AlignSpec subspec(number_size, '0', ALIGN_NUMERIC);
+ if (number_size >= width)
+ return prepare_int_buffer(num_digits, subspec, prefix, prefix_size);
+ buffer_.reserve(width);
+ unsigned fill_size = width - number_size;
+ if (align != ALIGN_LEFT) {
+ CharPtr p = grow_buffer(fill_size);
+ std::uninitialized_fill(p, p + fill_size, fill);
+ }
+ CharPtr result = prepare_int_buffer(
+ num_digits, subspec, prefix, prefix_size);
+ if (align == ALIGN_LEFT) {
+ CharPtr p = grow_buffer(fill_size);
+ std::uninitialized_fill(p, p + fill_size, fill);
+ }
+ return result;
+ }
+ unsigned size = prefix_size + num_digits;
+ if (width <= size) {
+ CharPtr p = grow_buffer(size);
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ return p + size - 1;
+ }
+ CharPtr p = grow_buffer(width);
+ CharPtr end = p + width;
+ if (align == ALIGN_LEFT) {
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ p += size;
+ std::uninitialized_fill(p, end, fill);
+ }
+ else if (align == ALIGN_CENTER) {
+ p = fill_padding(p, width, size, fill);
+ std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ p += size;
+ }
+ else {
+ if (align == ALIGN_NUMERIC) {
+ if (prefix_size != 0) {
+ p = std::uninitialized_copy(prefix, prefix + prefix_size, p);
+ size -= prefix_size;
+ }
+ }
+ else {
+ std::uninitialized_copy(prefix, prefix + prefix_size, end - size);
+ }
+ std::uninitialized_fill(p, end - size, fill);
+ p = end;
+ }
+ return p - 1;
+ }
+
+ template <typename Char>
+ template <typename T, typename Spec>
+ void BasicWriter<Char>::write_int(T value, Spec spec)
+ {
+ unsigned prefix_size = 0;
+ typedef typename internal::IntTraits<T>::MainType UnsignedType;
+ UnsignedType abs_value = static_cast<UnsignedType>(value);
+ char prefix[4] = "";
+ if (internal::is_negative(value)) {
+ prefix[0] = '-';
+ ++prefix_size;
+ abs_value = 0 - abs_value;
+ }
+ else if (spec.flag(SIGN_FLAG)) {
+ prefix[0] = spec.flag(PLUS_FLAG) ? '+' : ' ';
+ ++prefix_size;
+ }
+ switch (spec.type()) {
+ case 0: case 'd': {
+ unsigned num_digits = internal::count_digits(abs_value);
+ CharPtr p = prepare_int_buffer(num_digits, spec, prefix, prefix_size) + 1;
+ internal::format_decimal(get(p), abs_value, 0);
+ break;
+ }
+ case 'x': case 'X': {
+ UnsignedType n = abs_value;
+ if (spec.flag(HASH_FLAG)) {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = spec.type();
+ }
+ unsigned num_digits = 0;
+ do {
+ ++num_digits;
+ } while ((n >>= 4) != 0);
+ Char *p = get(prepare_int_buffer(
+ num_digits, spec, prefix, prefix_size));
+ n = abs_value;
+ const char *digits = spec.type() == 'x' ?
+ "0123456789abcdef" : "0123456789ABCDEF";
+ do {
+ *p-- = digits[n & 0xf];
+ } while ((n >>= 4) != 0);
+ break;
+ }
+ case 'b': case 'B': {
+ UnsignedType n = abs_value;
+ if (spec.flag(HASH_FLAG)) {
+ prefix[prefix_size++] = '0';
+ prefix[prefix_size++] = spec.type();
+ }
+ unsigned num_digits = 0;
+ do {
+ ++num_digits;
+ } while ((n >>= 1) != 0);
+ Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
+ n = abs_value;
+ do {
+ *p-- = static_cast<Char>('0' + (n & 1));
+ } while ((n >>= 1) != 0);
+ break;
+ }
+ case 'o': {
+ UnsignedType n = abs_value;
+ if (spec.flag(HASH_FLAG))
+ prefix[prefix_size++] = '0';
+ unsigned num_digits = 0;
+ do {
+ ++num_digits;
+ } while ((n >>= 3) != 0);
+ Char *p = get(prepare_int_buffer(num_digits, spec, prefix, prefix_size));
+ n = abs_value;
+ do {
+ *p-- = static_cast<Char>('0' + (n & 7));
+ } while ((n >>= 3) != 0);
+ break;
+ }
+ case 'n': {
+ unsigned num_digits = internal::count_digits(abs_value);
+ fmt::StringRef sep = internal::thousands_sep(std::localeconv());
+ unsigned size = static_cast<unsigned>(
+ num_digits + sep.size() * ((num_digits - 1) / 3));
+ CharPtr p = prepare_int_buffer(size, spec, prefix, prefix_size) + 1;
+ internal::format_decimal(get(p), abs_value, 0, internal::ThousandsSep(sep));
+ break;
+ }
+ default:
+ internal::report_unknown_type(
+ spec.type(), spec.flag(CHAR_FLAG) ? "char" : "integer");
+ break;
+ }
+ }
+
+ template <typename Char>
+ template <typename T>
+ void BasicWriter<Char>::write_double(T value, const FormatSpec &spec)
+ {
+ // Check type.
+ char type = spec.type();
+ bool upper = false;
+ switch (type) {
+ case 0:
+ type = 'g';
+ break;
+ case 'e': case 'f': case 'g': case 'a':
+ break;
+ case 'F':
+#if FMT_MSC_VER
+ // MSVC's printf doesn't support 'F'.
+ type = 'f';
+#endif
+ // Fall through.
+ case 'E': case 'G': case 'A':
+ upper = true;
+ break;
+ default:
+ internal::report_unknown_type(type, "double");
+ break;
+ }
+
+ char sign = 0;
+ // Use isnegative instead of value < 0 because the latter is always
+ // false for NaN.
+ if (internal::FPUtil::isnegative(static_cast<double>(value))) {
+ sign = '-';
+ value = -value;
+ }
+ else if (spec.flag(SIGN_FLAG)) {
+ sign = spec.flag(PLUS_FLAG) ? '+' : ' ';
+ }
+
+ if (internal::FPUtil::isnotanumber(value)) {
+ // Format NaN ourselves because sprintf's output is not consistent
+ // across platforms.
+ std::size_t nan_size = 4;
+ const char *nan = upper ? " NAN" : " nan";
+ if (!sign) {
+ --nan_size;
+ ++nan;
+ }
+ CharPtr out = write_str(nan, nan_size, spec);
+ if (sign)
+ *out = sign;
+ return;
+ }
+
+ if (internal::FPUtil::isinfinity(value)) {
+ // Format infinity ourselves because sprintf's output is not consistent
+ // across platforms.
+ std::size_t inf_size = 4;
+ const char *inf = upper ? " INF" : " inf";
+ if (!sign) {
+ --inf_size;
+ ++inf;
+ }
+ CharPtr out = write_str(inf, inf_size, spec);
+ if (sign)
+ *out = sign;
+ return;
+ }
+
+ std::size_t offset = buffer_.size();
+ unsigned width = spec.width();
+ if (sign) {
+ buffer_.reserve(buffer_.size() + (width > 1u ? width : 1u));
+ if (width > 0)
+ --width;
+ ++offset;
+ }
+
+ // Build format string.
+ enum
+ {
+ MAX_FORMAT_SIZE = 10
+ }; // longest format: %#-*.*Lg
+ Char format[MAX_FORMAT_SIZE];
+ Char *format_ptr = format;
+ *format_ptr++ = '%';
+ unsigned width_for_sprintf = width;
+ if (spec.flag(HASH_FLAG))
+ *format_ptr++ = '#';
+ if (spec.align() == ALIGN_CENTER) {
+ width_for_sprintf = 0;
+ }
+ else {
+ if (spec.align() == ALIGN_LEFT)
+ *format_ptr++ = '-';
+ if (width != 0)
+ *format_ptr++ = '*';
+ }
+ if (spec.precision() >= 0) {
+ *format_ptr++ = '.';
+ *format_ptr++ = '*';
+ }
+
+ append_float_length(format_ptr, value);
+ *format_ptr++ = type;
+ *format_ptr = '\0';
+
+ // Format using snprintf.
+ Char fill = internal::CharTraits<Char>::cast(spec.fill());
+ unsigned n = 0;
+ Char *start = 0;
+ for (;;) {
+ std::size_t buffer_size = buffer_.capacity() - offset;
+#if FMT_MSC_VER
+ // MSVC's vsnprintf_s doesn't work with zero size, so reserve
+ // space for at least one extra character to make the size non-zero.
+ // Note that the buffer's capacity will increase by more than 1.
+ if (buffer_size == 0) {
+ buffer_.reserve(offset + 1);
+ buffer_size = buffer_.capacity() - offset;
+ }
+#endif
+ start = &buffer_[offset];
+ int result = internal::CharTraits<Char>::format_float(
+ start, buffer_size, format, width_for_sprintf, spec.precision(), value);
+ if (result >= 0) {
+ n = internal::to_unsigned(result);
+ if (offset + n < buffer_.capacity())
+ break; // The buffer is large enough - continue with formatting.
+ buffer_.reserve(offset + n + 1);
+ }
+ else {
+ // If result is negative we ask to increase the capacity by at least 1,
+ // but as std::vector, the buffer grows exponentially.
+ buffer_.reserve(buffer_.capacity() + 1);
+ }
+ }
+ if (sign) {
+ if ((spec.align() != ALIGN_RIGHT && spec.align() != ALIGN_DEFAULT) ||
+ *start != ' ') {
+ *(start - 1) = sign;
+ sign = 0;
+ }
+ else {
+ *(start - 1) = fill;
+ }
+ ++n;
+ }
+ if (spec.align() == ALIGN_CENTER && spec.width() > n) {
+ width = spec.width();
+ CharPtr p = grow_buffer(width);
+ std::memmove(get(p) + (width - n) / 2, get(p), n * sizeof(Char));
+ fill_padding(p, spec.width(), n, fill);
+ return;
+ }
+ if (spec.fill() != ' ' || sign) {
+ while (*start == ' ')
+ *start++ = fill;
+ if (sign)
+ *(start - 1) = sign;
+ }
+ grow_buffer(n);
+ }
+
+ /**
+ \rst
+ This class template provides operations for formatting and writing data
+ into a character stream. The output is stored in a memory buffer that grows
+ dynamically.
+
+ You can use one of the following typedefs for common character types
+ and the standard allocator:
+
+ +---------------+-----------------------------------------------------+
+ | Type | Definition |
+ +===============+=====================================================+
+ | MemoryWriter | BasicMemoryWriter<char, std::allocator<char>> |
+ +---------------+-----------------------------------------------------+
+ | WMemoryWriter | BasicMemoryWriter<wchar_t, std::allocator<wchar_t>> |
+ +---------------+-----------------------------------------------------+
+
+ **Example**::
+
+ MemoryWriter out;
+ out << "The answer is " << 42 << "\n";
+ out.write("({:+f}, {:+f})", -3.14, 3.14);
+
+ This will write the following output to the ``out`` object:
+
+ .. code-block:: none
+
+ The answer is 42
+ (-3.140000, +3.140000)
+
+ The output can be converted to an ``std::string`` with ``out.str()`` or
+ accessed as a C string with ``out.c_str()``.
+ \endrst
+ */
+ template <typename Char, typename Allocator = std::allocator<Char> >
+ class BasicMemoryWriter: public BasicWriter<Char>
+ {
+ private:
+ internal::MemoryBuffer<Char, internal::INLINE_BUFFER_SIZE, Allocator> buffer_;
+
+ public:
+ explicit BasicMemoryWriter(const Allocator& alloc = Allocator())
+ : BasicWriter<Char>(buffer_), buffer_(alloc)
+ {}
+
+#if FMT_USE_RVALUE_REFERENCES
+ /**
+ \rst
+ Constructs a :class:`fmt::BasicMemoryWriter` object moving the content
+ of the other object to it.
+ \endrst
+ */
+ BasicMemoryWriter(BasicMemoryWriter &&other)
+ : BasicWriter<Char>(buffer_), buffer_(std::move(other.buffer_))
+ {}
+
+ /**
+ \rst
+ Moves the content of the other ``BasicMemoryWriter`` object to this one.
+ \endrst
+ */
+ BasicMemoryWriter &operator=(BasicMemoryWriter &&other)
+ {
+ buffer_ = std::move(other.buffer_);
+ return *this;
+ }
+#endif
+ };
+
+ typedef BasicMemoryWriter<char> MemoryWriter;
+ typedef BasicMemoryWriter<wchar_t> WMemoryWriter;
+
+ /**
+ \rst
+ This class template provides operations for formatting and writing data
+ into a fixed-size array. For writing into a dynamically growing buffer
+ use :class:`fmt::BasicMemoryWriter`.
+
+ Any write method will throw ``std::runtime_error`` if the output doesn't fit
+ into the array.
+
+ You can use one of the following typedefs for common character types:
+
+ +--------------+---------------------------+
+ | Type | Definition |
+ +==============+===========================+
+ | ArrayWriter | BasicArrayWriter<char> |
+ +--------------+---------------------------+
+ | WArrayWriter | BasicArrayWriter<wchar_t> |
+ +--------------+---------------------------+
+ \endrst
+ */
+ template <typename Char>
+ class BasicArrayWriter: public BasicWriter<Char>
+ {
+ private:
+ internal::FixedBuffer<Char> buffer_;
+
+ public:
+ /**
+ \rst
+ Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
+ given size.
+ \endrst
+ */
+ BasicArrayWriter(Char *array, std::size_t size)
+ : BasicWriter<Char>(buffer_), buffer_(array, size)
+ {}
+
+ /**
+ \rst
+ Constructs a :class:`fmt::BasicArrayWriter` object for *array* of the
+ size known at compile time.
+ \endrst
+ */
+ template <std::size_t SIZE>
+ explicit BasicArrayWriter(Char(&array)[SIZE])
+ : BasicWriter<Char>(buffer_), buffer_(array, SIZE)
+ {}
+ };
+
+ typedef BasicArrayWriter<char> ArrayWriter;
+ typedef BasicArrayWriter<wchar_t> WArrayWriter;
+
+ // Reports a system error without throwing an exception.
+ // Can be used to report errors from destructors.
+ FMT_API void report_system_error(int error_code,
+ StringRef message) FMT_NOEXCEPT;
+
+#if FMT_USE_WINDOWS_H
+
+ /** A Windows error. */
+ class WindowsError: public SystemError
+ {
+ private:
+ FMT_API void init(int error_code, CStringRef format_str, ArgList args);
+
+ public:
+ /**
+ \rst
+ Constructs a :class:`fmt::WindowsError` object with the description
+ of the form
+
+ .. parsed-literal::
+ *<message>*: *<system-message>*
+
+ where *<message>* is the formatted message and *<system-message>* is the
+ system message corresponding to the error code.
+ *error_code* is a Windows error code as given by ``GetLastError``.
+ If *error_code* is not a valid error code such as -1, the system message
+ will look like "error -1".
+
+ **Example**::
+
+ // This throws a WindowsError with the description
+ // cannot open file 'madeup': The system cannot find the file specified.
+ // or similar (system message may vary).
+ const char *filename = "madeup";
+ LPOFSTRUCT of = LPOFSTRUCT();
+ HFILE file = OpenFile(filename, &of, OF_READ);
+ if (file == HFILE_ERROR) {
+ throw fmt::WindowsError(GetLastError(),
+ "cannot open file '{}'", filename);
+ }
+ \endrst
+ */
+ WindowsError(int error_code, CStringRef message)
+ {
+ init(error_code, message, ArgList());
+ }
+ FMT_VARIADIC_CTOR(WindowsError, init, int, CStringRef)
+ };
+
+ // Reports a Windows error without throwing an exception.
+ // Can be used to report errors from destructors.
+ FMT_API void report_windows_error(int error_code,
+ StringRef message) FMT_NOEXCEPT;
+
+#endif
+
+ enum Color
+ {
+ BLACK, RED, GREEN, YELLOW, BLUE, MAGENTA, CYAN, WHITE
+ };
+
+ /**
+ Formats a string and prints it to stdout using ANSI escape sequences
+ to specify color (experimental).
+ Example:
+ print_colored(fmt::RED, "Elapsed time: {0:.2f} seconds", 1.23);
+ */
+ FMT_API void print_colored(Color c, CStringRef format, ArgList args);
+
+ /**
+ \rst
+ Formats arguments and returns the result as a string.
+
+ **Example**::
+
+ std::string message = format("The answer is {}", 42);
+ \endrst
+ */
+ inline std::string format(CStringRef format_str, ArgList args)
+ {
+ MemoryWriter w;
+ w.write(format_str, args);
+ return w.str();
+ }
+
+ inline std::wstring format(WCStringRef format_str, ArgList args)
+ {
+ WMemoryWriter w;
+ w.write(format_str, args);
+ return w.str();
+ }
+
+ /**
+ \rst
+ Prints formatted data to the file *f*.
+
+ **Example**::
+
+ print(stderr, "Don't {}!", "panic");
+ \endrst
+ */
+ FMT_API void print(std::FILE *f, CStringRef format_str, ArgList args);
+
+ /**
+ \rst
+ Prints formatted data to ``stdout``.
+
+ **Example**::
+
+ print("Elapsed time: {0:.2f} seconds", 1.23);
+ \endrst
+ */
+ FMT_API void print(CStringRef format_str, ArgList args);
+
+ /**
+ Fast integer formatter.
+ */
+ class FormatInt
+ {
+ private:
+ // Buffer should be large enough to hold all digits (digits10 + 1),
+ // a sign and a null character.
+ enum
+ {
+ BUFFER_SIZE = std::numeric_limits<ULongLong>::digits10 + 3
+ };
+ mutable char buffer_[BUFFER_SIZE];
+ char *str_;
+
+ // Formats value in reverse and returns the number of digits.
+ char *format_decimal(ULongLong value)
+ {
+ char *buffer_end = buffer_ + BUFFER_SIZE - 1;
+ while (value >= 100) {
+ // Integer division is slow so do it for a group of two digits instead
+ // of for every digit. The idea comes from the talk by Alexandrescu
+ // "Three Optimization Tips for C++". See speed-test for a comparison.
+ unsigned index = static_cast<unsigned>((value % 100) * 2);
+ value /= 100;
+ *--buffer_end = internal::Data::DIGITS[index + 1];
+ *--buffer_end = internal::Data::DIGITS[index];
+ }
+ if (value < 10) {
+ *--buffer_end = static_cast<char>('0' + value);
+ return buffer_end;
+ }
+ unsigned index = static_cast<unsigned>(value * 2);
+ *--buffer_end = internal::Data::DIGITS[index + 1];
+ *--buffer_end = internal::Data::DIGITS[index];
+ return buffer_end;
+ }
+
+ void FormatSigned(LongLong value)
+ {
+ ULongLong abs_value = static_cast<ULongLong>(value);
+ bool negative = value < 0;
+ if (negative)
+ abs_value = 0 - abs_value;
+ str_ = format_decimal(abs_value);
+ if (negative)
+ *--str_ = '-';
+ }
+
+ public:
+ explicit FormatInt(int value)
+ {
+ FormatSigned(value);
+ }
+ explicit FormatInt(long value)
+ {
+ FormatSigned(value);
+ }
+ explicit FormatInt(LongLong value)
+ {
+ FormatSigned(value);
+ }
+ explicit FormatInt(unsigned value): str_(format_decimal(value))
+ {}
+ explicit FormatInt(unsigned long value): str_(format_decimal(value))
+ {}
+ explicit FormatInt(ULongLong value): str_(format_decimal(value))
+ {}
+
+ /** Returns the number of characters written to the output buffer. */
+ std::size_t size() const
+ {
+ return internal::to_unsigned(buffer_ - str_ + BUFFER_SIZE - 1);
+ }
+
+ /**
+ Returns a pointer to the output buffer content. No terminating null
+ character is appended.
+ */
+ const char *data() const
+ {
+ return str_;
+ }
+
+ /**
+ Returns a pointer to the output buffer content with terminating null
+ character appended.
+ */
+ const char *c_str() const
+ {
+ buffer_[BUFFER_SIZE - 1] = '\0';
+ return str_;
+ }
+
+ /**
+ \rst
+ Returns the content of the output buffer as an ``std::string``.
+ \endrst
+ */
+ std::string str() const
+ {
+ return std::string(str_, size());
+ }
+ };
+
+ // Formats a decimal integer value writing into buffer and returns
+ // a pointer to the end of the formatted string. This function doesn't
+ // write a terminating null character.
+ template <typename T>
+ inline void format_decimal(char *&buffer, T value)
+ {
+ typedef typename internal::IntTraits<T>::MainType MainType;
+ MainType abs_value = static_cast<MainType>(value);
+ if (internal::is_negative(value)) {
+ *buffer++ = '-';
+ abs_value = 0 - abs_value;
+ }
+ if (abs_value < 100) {
+ if (abs_value < 10) {
+ *buffer++ = static_cast<char>('0' + abs_value);
+ return;
+ }
+ unsigned index = static_cast<unsigned>(abs_value * 2);
+ *buffer++ = internal::Data::DIGITS[index];
+ *buffer++ = internal::Data::DIGITS[index + 1];
+ return;
+ }
+ unsigned num_digits = internal::count_digits(abs_value);
+ internal::format_decimal(buffer, abs_value, num_digits);
+ buffer += num_digits;
+ }
+
+ /**
+ \rst
+ Returns a named argument for formatting functions.
+
+ **Example**::
+
+ print("Elapsed time: {s:.2f} seconds", arg("s", 1.23));
+
+ \endrst
+ */
+ template <typename T>
+ inline internal::NamedArg<char> arg(StringRef name, const T &arg)
+ {
+ return internal::NamedArg<char>(name, arg);
+ }
+
+ template <typename T>
+ inline internal::NamedArg<wchar_t> arg(WStringRef name, const T &arg)
+ {
+ return internal::NamedArg<wchar_t>(name, arg);
+ }
+
+ // The following two functions are deleted intentionally to disable
+ // nested named arguments as in ``format("{}", arg("a", arg("b", 42)))``.
+ template <typename Char>
+ void arg(StringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
+ template <typename Char>
+ void arg(WStringRef, const internal::NamedArg<Char>&) FMT_DELETED_OR_UNDEFINED;
+}
+
+#if FMT_GCC_VERSION
+// Use the system_header pragma to suppress warnings about variadic macros
+// because suppressing -Wvariadic-macros with the diagnostic pragma doesn't
+// work. It is used at the end because we want to suppress as little warnings
+// as possible.
+# pragma GCC system_header
+#endif
+
+// This is used to work around VC++ bugs in handling variadic macros.
+#define FMT_EXPAND(args) args
+
+// Returns the number of arguments.
+// Based on https://groups.google.com/forum/#!topic/comp.std.c/d-6Mj5Lko_s.
+#define FMT_NARG(...) FMT_NARG_(__VA_ARGS__, FMT_RSEQ_N())
+#define FMT_NARG_(...) FMT_EXPAND(FMT_ARG_N(__VA_ARGS__))
+#define FMT_ARG_N(_1, _2, _3, _4, _5, _6, _7, _8, _9, _10, N, ...) N
+#define FMT_RSEQ_N() 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0
+
+#define FMT_CONCAT(a, b) a##b
+#define FMT_FOR_EACH_(N, f, ...) \
+ FMT_EXPAND(FMT_CONCAT(FMT_FOR_EACH, N)(f, __VA_ARGS__))
+#define FMT_FOR_EACH(f, ...) \
+ FMT_EXPAND(FMT_FOR_EACH_(FMT_NARG(__VA_ARGS__), f, __VA_ARGS__))
+
+#define FMT_ADD_ARG_NAME(type, index) type arg##index
+#define FMT_GET_ARG_NAME(type, index) arg##index
+
+#if FMT_USE_VARIADIC_TEMPLATES
+# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \
+ template <typename... Args> \
+ ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \
+ const Args & ... args) { \
+ typedef fmt::internal::ArgArray<sizeof...(Args)> ArgArray; \
+ typename ArgArray::Type array{ \
+ ArgArray::template make<fmt::BasicFormatter<Char> >(args)...}; \
+ call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), \
+ fmt::ArgList(fmt::internal::make_type(args...), array)); \
+ }
+#else
+// Defines a wrapper for a function taking __VA_ARGS__ arguments
+// and n additional arguments of arbitrary types.
+# define FMT_WRAP(Char, ReturnType, func, call, n, ...) \
+ template <FMT_GEN(n, FMT_MAKE_TEMPLATE_ARG)> \
+ inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__), \
+ FMT_GEN(n, FMT_MAKE_ARG)) { \
+ fmt::internal::ArgArray<n>::Type arr; \
+ FMT_GEN(n, FMT_ASSIGN_##Char); \
+ call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList( \
+ fmt::internal::make_type(FMT_GEN(n, FMT_MAKE_REF2)), arr)); \
+ }
+
+# define FMT_VARIADIC_(Char, ReturnType, func, call, ...) \
+ inline ReturnType func(FMT_FOR_EACH(FMT_ADD_ARG_NAME, __VA_ARGS__)) { \
+ call(FMT_FOR_EACH(FMT_GET_ARG_NAME, __VA_ARGS__), fmt::ArgList()); \
+ } \
+ FMT_WRAP(Char, ReturnType, func, call, 1, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 2, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 3, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 4, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 5, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 6, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 7, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 8, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 9, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 10, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 11, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 12, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 13, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 14, __VA_ARGS__) \
+ FMT_WRAP(Char, ReturnType, func, call, 15, __VA_ARGS__)
+#endif // FMT_USE_VARIADIC_TEMPLATES
+
+/**
+\rst
+Defines a variadic function with the specified return type, function name
+and argument types passed as variable arguments to this macro.
+
+**Example**::
+
+void print_error(const char *file, int line, const char *format,
+fmt::ArgList args) {
+fmt::print("{}: {}: ", file, line);
+fmt::print(format, args);
+}
+FMT_VARIADIC(void, print_error, const char *, int, const char *)
+
+``FMT_VARIADIC`` is used for compatibility with legacy C++ compilers that
+don't implement variadic templates. You don't have to use this macro if
+you don't need legacy compiler support and can use variadic templates
+directly::
+
+template <typename... Args>
+void print_error(const char *file, int line, const char *format,
+const Args & ... args) {
+fmt::print("{}: {}: ", file, line);
+fmt::print(format, args...);
+}
+\endrst
+*/
+#define FMT_VARIADIC(ReturnType, func, ...) \
+ FMT_VARIADIC_(char, ReturnType, func, return func, __VA_ARGS__)
+
+#define FMT_VARIADIC_W(ReturnType, func, ...) \
+ FMT_VARIADIC_(wchar_t, ReturnType, func, return func, __VA_ARGS__)
+
+#define FMT_CAPTURE_ARG_(id, index) ::fmt::arg(#id, id)
+
+#define FMT_CAPTURE_ARG_W_(id, index) ::fmt::arg(L###id, id)
+
+/**
+\rst
+Convenient macro to capture the arguments' names and values into several
+``fmt::arg(name, value)``.
+
+**Example**::
+
+int x = 1, y = 2;
+print("point: ({x}, {y})", FMT_CAPTURE(x, y));
+// same as:
+// print("point: ({x}, {y})", arg("x", x), arg("y", y));
+
+\endrst
+*/
+#define FMT_CAPTURE(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_, __VA_ARGS__)
+
+#define FMT_CAPTURE_W(...) FMT_FOR_EACH(FMT_CAPTURE_ARG_W_, __VA_ARGS__)
+
+namespace fmt {
+ FMT_VARIADIC(std::string, format, CStringRef)
+ FMT_VARIADIC_W(std::wstring, format, WCStringRef)
+ FMT_VARIADIC(void, print, CStringRef)
+ FMT_VARIADIC(void, print, std::FILE *, CStringRef)
+ FMT_VARIADIC(void, print_colored, Color, CStringRef)
+
+ namespace internal {
+ template <typename Char>
+ inline bool is_name_start(Char c)
+ {
+ return ('a' <= c && c <= 'z') || ('A' <= c && c <= 'Z') || '_' == c;
+ }
+
+ // Parses an unsigned integer advancing s to the end of the parsed input.
+ // This function assumes that the first character of s is a digit.
+ template <typename Char>
+ unsigned parse_nonnegative_int(const Char *&s)
+ {
+ assert('0' <= *s && *s <= '9');
+ unsigned value = 0;
+ do {
+ unsigned new_value = value * 10 + (*s++ - '0');
+ // Check if value wrapped around.
+ if (new_value < value) {
+ value = (std::numeric_limits<unsigned>::max)();
+ break;
+ }
+ value = new_value;
+ } while ('0' <= *s && *s <= '9');
+ // Convert to unsigned to prevent a warning.
+ unsigned max_int = (std::numeric_limits<int>::max)();
+ if (value > max_int)
+ FMT_THROW(FormatError("number is too big"));
+ return value;
+ }
+
+ inline void require_numeric_argument(const Arg &arg, char spec)
+ {
+ if (arg.type > Arg::LAST_NUMERIC_TYPE) {
+ std::string message =
+ fmt::format("format specifier '{}' requires numeric argument", spec);
+ FMT_THROW(fmt::FormatError(message));
+ }
+ }
+
+ template <typename Char>
+ void check_sign(const Char *&s, const Arg &arg)
+ {
+ char sign = static_cast<char>(*s);
+ require_numeric_argument(arg, sign);
+ if (arg.type == Arg::UINT || arg.type == Arg::ULONG_LONG) {
+ FMT_THROW(FormatError(fmt::format(
+ "format specifier '{}' requires signed argument", sign)));
+ }
+ ++s;
+ }
+ } // namespace internal
+
+ template <typename Char, typename AF>
+ inline internal::Arg BasicFormatter<Char, AF>::get_arg(
+ BasicStringRef<Char> arg_name, const char *&error)
+ {
+ if (check_no_auto_index(error)) {
+ map_.init(args());
+ const internal::Arg *arg = map_.find(arg_name);
+ if (arg)
+ return *arg;
+ error = "argument not found";
+ }
+ return internal::Arg();
+ }
+
+ template <typename Char, typename AF>
+ inline internal::Arg BasicFormatter<Char, AF>::parse_arg_index(const Char *&s)
+ {
+ const char *error = 0;
+ internal::Arg arg = *s < '0' || *s > '9' ?
+ next_arg(error) : get_arg(internal::parse_nonnegative_int(s), error);
+ if (error) {
+ FMT_THROW(FormatError(
+ *s != '}' && *s != ':' ? "invalid format string" : error));
+ }
+ return arg;
+ }
+
+ template <typename Char, typename AF>
+ inline internal::Arg BasicFormatter<Char, AF>::parse_arg_name(const Char *&s)
+ {
+ assert(internal::is_name_start(*s));
+ const Char *start = s;
+ Char c;
+ do {
+ c = *++s;
+ } while (internal::is_name_start(c) || ('0' <= c && c <= '9'));
+ const char *error = 0;
+ internal::Arg arg = get_arg(BasicStringRef<Char>(start, s - start), error);
+ if (error)
+ FMT_THROW(FormatError(error));
+ return arg;
+ }
+
+ template <typename Char, typename ArgFormatter>
+ const Char *BasicFormatter<Char, ArgFormatter>::format(
+ const Char *&format_str, const internal::Arg &arg)
+ {
+ using internal::Arg;
+ const Char *s = format_str;
+ FormatSpec spec;
+ if (*s == ':') {
+ if (arg.type == Arg::CUSTOM) {
+ arg.custom.format(this, arg.custom.value, &s);
+ return s;
+ }
+ ++s;
+ // Parse fill and alignment.
+ if (Char c = *s) {
+ const Char *p = s + 1;
+ spec.align_ = ALIGN_DEFAULT;
+ do {
+ switch (*p) {
+ case '<':
+ spec.align_ = ALIGN_LEFT;
+ break;
+ case '>':
+ spec.align_ = ALIGN_RIGHT;
+ break;
+ case '=':
+ spec.align_ = ALIGN_NUMERIC;
+ break;
+ case '^':
+ spec.align_ = ALIGN_CENTER;
+ break;
+ }
+ if (spec.align_ != ALIGN_DEFAULT) {
+ if (p != s) {
+ if (c == '}') break;
+ if (c == '{')
+ FMT_THROW(FormatError("invalid fill character '{'"));
+ s += 2;
+ spec.fill_ = c;
+ }
+ else ++s;
+ if (spec.align_ == ALIGN_NUMERIC)
+ require_numeric_argument(arg, '=');
+ break;
+ }
+ } while (--p >= s);
+ }
+
+ // Parse sign.
+ switch (*s) {
+ case '+':
+ check_sign(s, arg);
+ spec.flags_ |= SIGN_FLAG | PLUS_FLAG;
+ break;
+ case '-':
+ check_sign(s, arg);
+ spec.flags_ |= MINUS_FLAG;
+ break;
+ case ' ':
+ check_sign(s, arg);
+ spec.flags_ |= SIGN_FLAG;
+ break;
+ }
+
+ if (*s == '#') {
+ require_numeric_argument(arg, '#');
+ spec.flags_ |= HASH_FLAG;
+ ++s;
+ }
+
+ // Parse zero flag.
+ if (*s == '0') {
+ require_numeric_argument(arg, '0');
+ spec.align_ = ALIGN_NUMERIC;
+ spec.fill_ = '0';
+ ++s;
+ }
+
+ // Parse width.
+ if ('0' <= *s && *s <= '9') {
+ spec.width_ = internal::parse_nonnegative_int(s);
+ }
+ else if (*s == '{') {
+ ++s;
+ Arg width_arg = internal::is_name_start(*s) ?
+ parse_arg_name(s) : parse_arg_index(s);
+ if (*s++ != '}')
+ FMT_THROW(FormatError("invalid format string"));
+ ULongLong value = 0;
+ switch (width_arg.type) {
+ case Arg::INT:
+ if (width_arg.int_value < 0)
+ FMT_THROW(FormatError("negative width"));
+ value = width_arg.int_value;
+ break;
+ case Arg::UINT:
+ value = width_arg.uint_value;
+ break;
+ case Arg::LONG_LONG:
+ if (width_arg.long_long_value < 0)
+ FMT_THROW(FormatError("negative width"));
+ value = width_arg.long_long_value;
+ break;
+ case Arg::ULONG_LONG:
+ value = width_arg.ulong_long_value;
+ break;
+ default:
+ FMT_THROW(FormatError("width is not integer"));
+ }
+ if (value >(std::numeric_limits<int>::max)())
+ FMT_THROW(FormatError("number is too big"));
+ spec.width_ = static_cast<int>(value);
+ }
+
+ // Parse precision.
+ if (*s == '.') {
+ ++s;
+ spec.precision_ = 0;
+ if ('0' <= *s && *s <= '9') {
+ spec.precision_ = internal::parse_nonnegative_int(s);
+ }
+ else if (*s == '{') {
+ ++s;
+ Arg precision_arg = internal::is_name_start(*s) ?
+ parse_arg_name(s) : parse_arg_index(s);
+ if (*s++ != '}')
+ FMT_THROW(FormatError("invalid format string"));
+ ULongLong value = 0;
+ switch (precision_arg.type) {
+ case Arg::INT:
+ if (precision_arg.int_value < 0)
+ FMT_THROW(FormatError("negative precision"));
+ value = precision_arg.int_value;
+ break;
+ case Arg::UINT:
+ value = precision_arg.uint_value;
+ break;
+ case Arg::LONG_LONG:
+ if (precision_arg.long_long_value < 0)
+ FMT_THROW(FormatError("negative precision"));
+ value = precision_arg.long_long_value;
+ break;
+ case Arg::ULONG_LONG:
+ value = precision_arg.ulong_long_value;
+ break;
+ default:
+ FMT_THROW(FormatError("precision is not integer"));
+ }
+ if (value >(std::numeric_limits<int>::max)())
+ FMT_THROW(FormatError("number is too big"));
+ spec.precision_ = static_cast<int>(value);
+ }
+ else {
+ FMT_THROW(FormatError("missing precision specifier"));
+ }
+ if (arg.type <= Arg::LAST_INTEGER_TYPE || arg.type == Arg::POINTER) {
+ FMT_THROW(FormatError(
+ fmt::format("precision not allowed in {} format specifier",
+ arg.type == Arg::POINTER ? "pointer" : "integer")));
+ }
+ }
+
+ // Parse type.
+ if (*s != '}' && *s)
+ spec.type_ = static_cast<char>(*s++);
+ }
+
+ if (*s++ != '}')
+ FMT_THROW(FormatError("missing '}' in format string"));
+
+ // Format argument.
+ ArgFormatter(*this, spec, s - 1).visit(arg);
+ return s;
+ }
+
+ template <typename Char, typename AF>
+ void BasicFormatter<Char, AF>::format(BasicCStringRef<Char> format_str)
+ {
+ const Char *s = format_str.c_str();
+ const Char *start = s;
+ while (*s) {
+ Char c = *s++;
+ if (c != '{' && c != '}') continue;
+ if (*s == c) {
+ write(writer_, start, s);
+ start = ++s;
+ continue;
+ }
+ if (c == '}')
+ FMT_THROW(FormatError("unmatched '}' in format string"));
+ write(writer_, start, s - 1);
+ internal::Arg arg = internal::is_name_start(*s) ?
+ parse_arg_name(s) : parse_arg_index(s);
+ start = s = format(s, arg);
+ }
+ write(writer_, start, s);
+ }
+} // namespace fmt
+
+#if FMT_USE_USER_DEFINED_LITERALS
+namespace fmt {
+ namespace internal {
+
+ template <typename Char>
+ struct UdlFormat
+ {
+ const Char *str;
+
+ template <typename... Args>
+ auto operator()(Args && ... args) const
+ -> decltype(format(str, std::forward<Args>(args)...))
+ {
+ return format(str, std::forward<Args>(args)...);
+ }
+ };
+
+ template <typename Char>
+ struct UdlArg
+ {
+ const Char *str;
+
+ template <typename T>
+ NamedArg<Char> operator=(T &&value) const
+ {
+ return{ str, std::forward<T>(value) };
+ }
+ };
+
+ } // namespace internal
+
+ inline namespace literals {
+
+ /**
+ \rst
+ C++11 literal equivalent of :func:`fmt::format`.
+
+ **Example**::
+
+ using namespace fmt::literals;
+ std::string message = "The answer is {}"_format(42);
+ \endrst
+ */
+ inline internal::UdlFormat<char>
+ operator"" _format(const char *s, std::size_t)
+ {
+ return{ s };
+ }
+ inline internal::UdlFormat<wchar_t>
+ operator"" _format(const wchar_t *s, std::size_t)
+ {
+ return{ s };
+ }
+
+ /**
+ \rst
+ C++11 literal equivalent of :func:`fmt::arg`.
+
+ **Example**::
+
+ using namespace fmt::literals;
+ print("Elapsed time: {s:.2f} seconds", "s"_a=1.23);
+ \endrst
+ */
+ inline internal::UdlArg<char>
+ operator"" _a(const char *s, std::size_t)
+ {
+ return{ s };
+ }
+ inline internal::UdlArg<wchar_t>
+ operator"" _a(const wchar_t *s, std::size_t)
+ {
+ return{ s };
+ }
+
+ } // inline namespace literals
+} // namespace fmt
+#endif // FMT_USE_USER_DEFINED_LITERALS
+
+ // Restore warnings.
+#if FMT_GCC_VERSION >= 406
+# pragma GCC diagnostic pop
+#endif
+
+#if defined(__clang__) && !defined(FMT_ICC_VERSION)
+# pragma clang diagnostic pop
+#endif
+
+#ifdef FMT_HEADER_ONLY
+# define FMT_FUNC inline
+# include "format.cc"
+#else
+# define FMT_FUNC
+#endif
+
+#endif // FMT_FORMAT_H_
diff --git a/include/spdlog/sinks/file_sinks.h b/include/spdlog/sinks/file_sinks.h
index 3eb03b0b..3040e287 100644
--- a/include/spdlog/sinks/file_sinks.h
+++ b/include/spdlog/sinks/file_sinks.h
@@ -8,7 +8,7 @@
#include <spdlog/sinks/base_sink.h>
#include <spdlog/details/null_mutex.h>
#include <spdlog/details/file_helper.h>
-#include <spdlog/details/format.h>
+#include <spdlog/fmt/format.h>
#include <algorithm>
#include <chrono>
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-09 09:50:24 +0300