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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __FN_CPP_TYPE_HH__
#define __FN_CPP_TYPE_HH__
/** \file
* \ingroup fn
*
* The CPPType class is the core of the runtime-type-system used by the functions system. An
* instance of this class can represent any C++ type, that is default-constructible, destructible,
* movable and copyable. Therefore it also works for all C types. This restrictions might need to
* be removed in the future, but for now every required type has these properties.
*
* Every type has a size and an alignment. Every function dealing with C++ types in a generic way,
* has to make sure that alignment rules are followed. The methods provided by a CPPType instance
* will check for correct alignment as well.
*
* Every type has a name that is for debugging purposes only. It should not be used as identifier.
*
* To check if two instances of CPPType represent the same type, only their pointers have to be
* compared. Any C++ type has at most one corresponding CPPType instance.
*
* A CPPType instance comes with many methods that allow dealing with types in a generic way. Most
* methods come in three variants. Using the construct-default methods as example:
* - construct_default(void *ptr):
* Constructs a single instance of that type at the given pointer.
* - construct_default_n(void *ptr, uint n):
* Constructs n instances of that type in an array that starts at the given pointer.
* - construct_default_indices(void *ptr, IndexMask mask):
* Constructs multiple instances of that type in an array that starts at the given pointer.
* Only the indices referenced by `mask` will by constructed.
*
* In some cases default-construction does nothing (e.g. for trivial types like int). The
* `default_value` method provides some default value anyway that can be copied instead. What the
* default value is, depends on the type. Usually it is something like 0 or an empty string.
*
*
* Implementation Considerations
* -----------------------------
*
* Concepts like inheritance are currently not captured by this system. This is not because it is
* not possible, but because it was not necessary to add this complexity yet.
*
* One could also implement CPPType itself using virtual inheritance. However, I found the approach
* used now with explicit function pointers to work better. Here are some reasons:
* - If CPPType would be inherited once for every used C++ type, we would get a lot of classes
* that would only be instanced once each.
* - Methods like `construct_default` that operate on a single instance have to be fast. Even this
* one necessary indirection using function pointers adds a lot of overhead. If all methods were
* virtual, there would be a second level of indirection that increases the overhead even more.
* - If it becomes necessary, we could pass the function pointers to C functions more easily than
* pointers to virtual member functions.
*/
#include "BLI_hash.hh"
#include "BLI_index_mask.hh"
#include "BLI_math_base.h"
#include "BLI_string_ref.hh"
namespace blender::fn {
class CPPType {
public:
using ConstructDefaultF = void (*)(void *ptr);
using ConstructDefaultNF = void (*)(void *ptr, uint n);
using ConstructDefaultIndicesF = void (*)(void *ptr, IndexMask mask);
using DestructF = void (*)(void *ptr);
using DestructNF = void (*)(void *ptr, uint n);
using DestructIndicesF = void (*)(void *ptr, IndexMask mask);
using CopyToInitializedF = void (*)(const void *src, void *dst);
using CopyToInitializedNF = void (*)(const void *src, void *dst, uint n);
using CopyToInitializedIndicesF = void (*)(const void *src, void *dst, IndexMask mask);
using CopyToUninitializedF = void (*)(const void *src, void *dst);
using CopyToUninitializedNF = void (*)(const void *src, void *dst, uint n);
using CopyToUninitializedIndicesF = void (*)(const void *src, void *dst, IndexMask mask);
using RelocateToInitializedF = void (*)(void *src, void *dst);
using RelocateToInitializedNF = void (*)(void *src, void *dst, uint n);
using RelocateToInitializedIndicesF = void (*)(void *src, void *dst, IndexMask mask);
using RelocateToUninitializedF = void (*)(void *src, void *dst);
using RelocateToUninitializedNF = void (*)(void *src, void *dst, uint n);
using RelocateToUninitializedIndicesF = void (*)(void *src, void *dst, IndexMask mask);
using FillInitializedF = void (*)(const void *value, void *dst, uint n);
using FillInitializedIndicesF = void (*)(const void *value, void *dst, IndexMask mask);
using FillUninitializedF = void (*)(const void *value, void *dst, uint n);
using FillUninitializedIndicesF = void (*)(const void *value, void *dst, IndexMask mask);
using DebugPrintF = void (*)(const void *value, std::stringstream &ss);
private:
uint size_;
uint alignment_;
uintptr_t alignment_mask_;
bool is_trivially_destructible_;
ConstructDefaultF construct_default_;
ConstructDefaultNF construct_default_n_;
ConstructDefaultIndicesF construct_default_indices_;
DestructF destruct_;
DestructNF destruct_n_;
DestructIndicesF destruct_indices_;
CopyToInitializedF copy_to_initialized_;
CopyToInitializedNF copy_to_initialized_n_;
CopyToInitializedIndicesF copy_to_initialized_indices_;
CopyToUninitializedF copy_to_uninitialized_;
CopyToUninitializedNF copy_to_uninitialized_n_;
CopyToUninitializedIndicesF copy_to_uninitialized_indices_;
RelocateToInitializedF relocate_to_initialized_;
RelocateToInitializedNF relocate_to_initialized_n_;
RelocateToInitializedIndicesF relocate_to_initialized_indices_;
RelocateToUninitializedF relocate_to_uninitialized_;
RelocateToUninitializedNF relocate_to_uninitialized_n_;
RelocateToUninitializedIndicesF relocate_to_uninitialized_indices_;
FillInitializedF fill_initialized_;
FillInitializedIndicesF fill_initialized_indices_;
FillUninitializedF fill_uninitialized_;
FillUninitializedIndicesF fill_uninitialized_indices_;
DebugPrintF debug_print_;
const void *default_value_;
std::string name_;
public:
CPPType(std::string name,
uint size,
uint alignment,
bool is_trivially_destructible,
ConstructDefaultF construct_default,
ConstructDefaultNF construct_default_n,
ConstructDefaultIndicesF construct_default_indices,
DestructF destruct,
DestructNF destruct_n,
DestructIndicesF destruct_indices,
CopyToInitializedF copy_to_initialized,
CopyToInitializedNF copy_to_initialized_n,
CopyToInitializedIndicesF copy_to_initialized_indices,
CopyToUninitializedF copy_to_uninitialized,
CopyToUninitializedNF copy_to_uninitialized_n,
CopyToUninitializedIndicesF copy_to_uninitialized_indices,
RelocateToInitializedF relocate_to_initialized,
RelocateToInitializedNF relocate_to_initialized_n,
RelocateToInitializedIndicesF relocate_to_initialized_indices,
RelocateToUninitializedF relocate_to_uninitialized,
RelocateToUninitializedNF relocate_to_uninitialized_n,
RelocateToUninitializedIndicesF relocate_to_uninitialized_indices,
FillInitializedF fill_initialized,
FillInitializedIndicesF fill_initialized_indices,
FillUninitializedF fill_uninitialized,
FillUninitializedIndicesF fill_uninitialized_indices,
DebugPrintF debug_print,
const void *default_value)
: size_(size),
alignment_(alignment),
is_trivially_destructible_(is_trivially_destructible),
construct_default_(construct_default),
construct_default_n_(construct_default_n),
construct_default_indices_(construct_default_indices),
destruct_(destruct),
destruct_n_(destruct_n),
destruct_indices_(destruct_indices),
copy_to_initialized_(copy_to_initialized),
copy_to_initialized_n_(copy_to_initialized_n),
copy_to_initialized_indices_(copy_to_initialized_indices),
copy_to_uninitialized_(copy_to_uninitialized),
copy_to_uninitialized_n_(copy_to_uninitialized_n),
copy_to_uninitialized_indices_(copy_to_uninitialized_indices),
relocate_to_initialized_(relocate_to_initialized),
relocate_to_initialized_n_(relocate_to_initialized_n),
relocate_to_initialized_indices_(relocate_to_initialized_indices),
relocate_to_uninitialized_(relocate_to_uninitialized),
relocate_to_uninitialized_n_(relocate_to_uninitialized_n),
relocate_to_uninitialized_indices_(relocate_to_uninitialized_indices),
fill_initialized_(fill_initialized),
fill_initialized_indices_(fill_initialized_indices),
fill_uninitialized_(fill_uninitialized),
fill_uninitialized_indices_(fill_uninitialized_indices),
debug_print_(debug_print),
default_value_(default_value),
name_(name)
{
BLI_assert(is_power_of_2_i(alignment_));
alignment_mask_ = (uintptr_t)alignment_ - (uintptr_t)1;
}
/**
* Two types only compare equal when their pointer is equal. No two instances of CPPType for the
* same C++ type should be created.
*/
friend bool operator==(const CPPType &a, const CPPType &b)
{
return &a == &b;
}
friend bool operator!=(const CPPType &a, const CPPType &b)
{
return !(&a == &b);
}
template<typename T> static const CPPType &get();
/**
* Returns the name of the type for debugging purposes. This name should not be used as
* identifier.
*/
StringRefNull name() const
{
return name_;
}
/**
* Required memory in bytes for an instance of this type.
*
* C++ equivalent:
* sizeof(T);
*/
uint size() const
{
return size_;
}
/**
* Required memory alignment for an instance of this type.
*
* C++ equivalent:
* alignof(T);
*/
uint alignment() const
{
return alignment_;
}
/**
* When true, the destructor does not have to be called on this type. This can sometimes be used
* for optimization purposes.
*
* C++ equivalent:
* std::is_trivially_destructible_v<T>;
*/
bool is_trivially_destructible() const
{
return is_trivially_destructible_;
}
/**
* Returns true, when the given pointer fulfills the alignment requirement of this type.
*/
bool pointer_has_valid_alignment(const void *ptr) const
{
return ((uintptr_t)ptr & alignment_mask_) == 0;
}
bool pointer_can_point_to_instance(const void *ptr) const
{
return ptr != nullptr && pointer_has_valid_alignment(ptr);
}
/**
* Call the default constructor at the given memory location.
* The memory should be uninitialized before this method is called.
* For some trivial types (like int), this method does nothing.
*
* C++ equivalent:
* new (ptr) T;
*/
void construct_default(void *ptr) const
{
BLI_assert(this->pointer_can_point_to_instance(ptr));
construct_default_(ptr);
}
void construct_default_n(void *ptr, uint n) const
{
BLI_assert(n == 0 || this->pointer_can_point_to_instance(ptr));
construct_default_n_(ptr, n);
}
void construct_default_indices(void *ptr, IndexMask mask) const
{
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(ptr));
construct_default_indices_(ptr, mask);
}
/**
* Call the destructor on the given instance of this type. The pointer must not be nullptr.
*
* For some trivial types, this does nothing.
*
* C++ equivalent:
* ptr->~T();
*/
void destruct(void *ptr) const
{
BLI_assert(this->pointer_can_point_to_instance(ptr));
destruct_(ptr);
}
void destruct_n(void *ptr, uint n) const
{
BLI_assert(n == 0 || this->pointer_can_point_to_instance(ptr));
destruct_n_(ptr, n);
}
void destruct_indices(void *ptr, IndexMask mask) const
{
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(ptr));
destruct_indices_(ptr, mask);
}
DestructF destruct_cb() const
{
return destruct_;
}
/**
* Copy an instance of this type from src to dst.
*
* C++ equivalent:
* dst = src;
*/
void copy_to_initialized(const void *src, void *dst) const
{
BLI_assert(src != dst);
BLI_assert(this->pointer_can_point_to_instance(src));
BLI_assert(this->pointer_can_point_to_instance(dst));
copy_to_initialized_(src, dst);
}
void copy_to_initialized_n(const void *src, void *dst, uint n) const
{
BLI_assert(src != dst);
BLI_assert(n == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(n == 0 || this->pointer_can_point_to_instance(dst));
copy_to_initialized_n_(src, dst, n);
}
void copy_to_initialized_indices(const void *src, void *dst, IndexMask mask) const
{
BLI_assert(src != dst);
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(dst));
copy_to_initialized_indices_(src, dst, mask);
}
/**
* Copy an instance of this type from src to dst.
*
* The memory pointed to by dst should be uninitialized.
*
* C++ equivalent:
* new (dst) T(src);
*/
void copy_to_uninitialized(const void *src, void *dst) const
{
BLI_assert(src != dst);
BLI_assert(this->pointer_can_point_to_instance(src));
BLI_assert(this->pointer_can_point_to_instance(dst));
copy_to_uninitialized_(src, dst);
}
void copy_to_uninitialized_n(const void *src, void *dst, uint n) const
{
BLI_assert(src != dst);
BLI_assert(n == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(n == 0 || this->pointer_can_point_to_instance(dst));
copy_to_uninitialized_n_(src, dst, n);
}
void copy_to_uninitialized_indices(const void *src, void *dst, IndexMask mask) const
{
BLI_assert(src != dst);
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(dst));
copy_to_uninitialized_indices_(src, dst, mask);
}
/**
* Relocates an instance of this type from src to dst. src will point to uninitialized memory
* afterwards.
*
* C++ equivalent:
* dst = std::move(src);
* src->~T();
*/
void relocate_to_initialized(void *src, void *dst) const
{
BLI_assert(src != dst);
BLI_assert(this->pointer_can_point_to_instance(src));
BLI_assert(this->pointer_can_point_to_instance(dst));
relocate_to_initialized_(src, dst);
}
void relocate_to_initialized_n(void *src, void *dst, uint n) const
{
BLI_assert(src != dst);
BLI_assert(n == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(n == 0 || this->pointer_can_point_to_instance(dst));
relocate_to_initialized_n_(src, dst, n);
}
void relocate_to_initialized_indices(void *src, void *dst, IndexMask mask) const
{
BLI_assert(src != dst);
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(dst));
relocate_to_initialized_indices_(src, dst, mask);
}
/**
* Relocates an instance of this type from src to dst. src will point to uninitialized memory
* afterwards.
*
* C++ equivalent:
* new (dst) T(std::move(src))
* src->~T();
*/
void relocate_to_uninitialized(void *src, void *dst) const
{
BLI_assert(src != dst);
BLI_assert(this->pointer_can_point_to_instance(src));
BLI_assert(this->pointer_can_point_to_instance(dst));
relocate_to_uninitialized_(src, dst);
}
void relocate_to_uninitialized_n(void *src, void *dst, uint n) const
{
BLI_assert(src != dst);
BLI_assert(n == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(n == 0 || this->pointer_can_point_to_instance(dst));
relocate_to_uninitialized_n_(src, dst, n);
}
void relocate_to_uninitialized_indices(void *src, void *dst, IndexMask mask) const
{
BLI_assert(src != dst);
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(src));
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(dst));
relocate_to_uninitialized_indices_(src, dst, mask);
}
/**
* Copy the given value to the first n elements in an array starting at dst.
*
* Other instances of the same type should live in the array before this method is called.
*/
void fill_initialized(const void *value, void *dst, uint n) const
{
BLI_assert(n == 0 || this->pointer_can_point_to_instance(value));
BLI_assert(n == 0 || this->pointer_can_point_to_instance(dst));
fill_initialized_(value, dst, n);
}
void fill_initialized_indices(const void *value, void *dst, IndexMask mask) const
{
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(value));
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(dst));
fill_initialized_indices_(value, dst, mask);
}
/**
* Copy the given value to the first n elements in an array starting at dst.
*
* The array should be uninitialized before this method is called.
*/
void fill_uninitialized(const void *value, void *dst, uint n) const
{
BLI_assert(n == 0 || this->pointer_can_point_to_instance(value));
BLI_assert(n == 0 || this->pointer_can_point_to_instance(dst));
fill_uninitialized_(value, dst, n);
}
void fill_uninitialized_indices(const void *value, void *dst, IndexMask mask) const
{
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(value));
BLI_assert(mask.size() == 0 || this->pointer_can_point_to_instance(dst));
fill_uninitialized_indices_(value, dst, mask);
}
void debug_print(const void *value, std::stringstream &ss) const
{
BLI_assert(this->pointer_can_point_to_instance(value));
debug_print_(value, ss);
}
/**
* Get a pointer to a constant value of this type. The specific value depends on the type.
* It is usually a zero-initialized or default constructed value.
*/
const void *default_value() const
{
return default_value_;
}
uint32_t hash() const
{
return DefaultHash<const CPPType *>{}(this);
}
template<typename T> bool is() const
{
return this == &CPPType::get<T>();
}
};
/* --------------------------------------------------------------------
* Utility for creating CPPType instances for C++ types.
*/
namespace cpp_type_util {
template<typename T> void construct_default_cb(void *ptr)
{
new (ptr) T;
}
template<typename T> void construct_default_n_cb(void *ptr, uint n)
{
blender::default_construct_n((T *)ptr, n);
}
template<typename T> void construct_default_indices_cb(void *ptr, IndexMask mask)
{
mask.foreach_index([&](uint i) { new ((T *)ptr + i) T; });
}
template<typename T> void destruct_cb(void *ptr)
{
((T *)ptr)->~T();
}
template<typename T> void destruct_n_cb(void *ptr, uint n)
{
blender::destruct_n((T *)ptr, n);
}
template<typename T> void destruct_indices_cb(void *ptr, IndexMask mask)
{
T *ptr_ = (T *)ptr;
mask.foreach_index([&](uint i) { ptr_[i].~T(); });
}
template<typename T> void copy_to_initialized_cb(const void *src, void *dst)
{
*(T *)dst = *(T *)src;
}
template<typename T> void copy_to_initialized_n_cb(const void *src, void *dst, uint n)
{
const T *src_ = (const T *)src;
T *dst_ = (T *)dst;
for (uint i = 0; i < n; i++) {
dst_[i] = src_[i];
}
}
template<typename T>
void copy_to_initialized_indices_cb(const void *src, void *dst, IndexMask mask)
{
const T *src_ = (const T *)src;
T *dst_ = (T *)dst;
mask.foreach_index([&](uint i) { dst_[i] = src_[i]; });
}
template<typename T> void copy_to_uninitialized_cb(const void *src, void *dst)
{
blender::uninitialized_copy_n((T *)src, 1, (T *)dst);
}
template<typename T> void copy_to_uninitialized_n_cb(const void *src, void *dst, uint n)
{
blender::uninitialized_copy_n((T *)src, n, (T *)dst);
}
template<typename T>
void copy_to_uninitialized_indices_cb(const void *src, void *dst, IndexMask mask)
{
const T *src_ = (const T *)src;
T *dst_ = (T *)dst;
mask.foreach_index([&](uint i) { new (dst_ + i) T(src_[i]); });
}
template<typename T> void relocate_to_initialized_cb(void *src, void *dst)
{
T *src_ = (T *)src;
T *dst_ = (T *)dst;
*dst_ = std::move(*src_);
src_->~T();
}
template<typename T> void relocate_to_initialized_n_cb(void *src, void *dst, uint n)
{
blender::initialized_relocate_n((T *)src, n, (T *)dst);
}
template<typename T> void relocate_to_initialized_indices_cb(void *src, void *dst, IndexMask mask)
{
T *src_ = (T *)src;
T *dst_ = (T *)dst;
mask.foreach_index([&](uint i) {
dst_[i] = std::move(src_[i]);
src_[i].~T();
});
}
template<typename T> void relocate_to_uninitialized_cb(void *src, void *dst)
{
T *src_ = (T *)src;
T *dst_ = (T *)dst;
new (dst_) T(std::move(*src_));
src_->~T();
}
template<typename T> void relocate_to_uninitialized_n_cb(void *src, void *dst, uint n)
{
blender::uninitialized_relocate_n((T *)src, n, (T *)dst);
}
template<typename T>
void relocate_to_uninitialized_indices_cb(void *src, void *dst, IndexMask mask)
{
T *src_ = (T *)src;
T *dst_ = (T *)dst;
mask.foreach_index([&](uint i) {
new (dst_ + i) T(std::move(src_[i]));
src_[i].~T();
});
}
template<typename T> void fill_initialized_cb(const void *value, void *dst, uint n)
{
const T &value_ = *(const T *)value;
T *dst_ = (T *)dst;
for (uint i = 0; i < n; i++) {
dst_[i] = value_;
}
}
template<typename T> void fill_initialized_indices_cb(const void *value, void *dst, IndexMask mask)
{
const T &value_ = *(const T *)value;
T *dst_ = (T *)dst;
mask.foreach_index([&](uint i) { dst_[i] = value_; });
}
template<typename T> void fill_uninitialized_cb(const void *value, void *dst, uint n)
{
const T &value_ = *(const T *)value;
T *dst_ = (T *)dst;
for (uint i = 0; i < n; i++) {
new (dst_ + i) T(value_);
}
}
template<typename T>
void fill_uninitialized_indices_cb(const void *value, void *dst, IndexMask mask)
{
const T &value_ = *(const T *)value;
T *dst_ = (T *)dst;
mask.foreach_index([&](uint i) { new (dst_ + i) T(value_); });
}
template<typename T> void debug_print_cb(const void *value, std::stringstream &ss)
{
const T &value_ = *(const T *)value;
ss << value_;
}
} // namespace cpp_type_util
template<typename T>
inline std::unique_ptr<const CPPType> create_cpp_type(StringRef name, const T &default_value)
{
using namespace cpp_type_util;
const CPPType *type = new CPPType(name,
sizeof(T),
alignof(T),
std::is_trivially_destructible_v<T>,
construct_default_cb<T>,
construct_default_n_cb<T>,
construct_default_indices_cb<T>,
destruct_cb<T>,
destruct_n_cb<T>,
destruct_indices_cb<T>,
copy_to_initialized_cb<T>,
copy_to_initialized_n_cb<T>,
copy_to_initialized_indices_cb<T>,
copy_to_uninitialized_cb<T>,
copy_to_uninitialized_n_cb<T>,
copy_to_uninitialized_indices_cb<T>,
relocate_to_initialized_cb<T>,
relocate_to_initialized_n_cb<T>,
relocate_to_initialized_indices_cb<T>,
relocate_to_uninitialized_cb<T>,
relocate_to_uninitialized_n_cb<T>,
relocate_to_uninitialized_indices_cb<T>,
fill_initialized_cb<T>,
fill_initialized_indices_cb<T>,
fill_uninitialized_cb<T>,
fill_uninitialized_indices_cb<T>,
debug_print_cb<T>,
(const void *)&default_value);
return std::unique_ptr<const CPPType>(type);
}
} // namespace blender::fn
#define MAKE_CPP_TYPE(IDENTIFIER, TYPE_NAME) \
static TYPE_NAME default_value_##IDENTIFIER; \
static std::unique_ptr<const blender::fn::CPPType> CPPTYPE_##IDENTIFIER##_owner = \
blender::fn::create_cpp_type<TYPE_NAME>(STRINGIFY(IDENTIFIER), default_value_##IDENTIFIER); \
const blender::fn::CPPType &CPPType_##IDENTIFIER = *CPPTYPE_##IDENTIFIER##_owner; \
template<> const blender::fn::CPPType &blender::fn::CPPType::get<TYPE_NAME>() \
{ \
/* This can happen when trying to access a CPPType during static storage initialization. */ \
BLI_assert(CPPTYPE_##IDENTIFIER##_owner.get() != nullptr); \
return CPPType_##IDENTIFIER; \
}
#endif /* __FN_CPP_TYPE_HH__ */
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