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Diffstat (limited to 'tests/multi_span_tests.cpp')
| -rw-r--r-- | tests/multi_span_tests.cpp | 1866 |
1 files changed, 0 insertions, 1866 deletions
diff --git a/tests/multi_span_tests.cpp b/tests/multi_span_tests.cpp deleted file mode 100644 index 9f93315..0000000 --- a/tests/multi_span_tests.cpp +++ /dev/null @@ -1,1866 +0,0 @@ -/////////////////////////////////////////////////////////////////////////////// -// -// Copyright (c) 2015 Microsoft Corporation. All rights reserved. -// -// This code is licensed under the MIT License (MIT). -// -// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN -// THE SOFTWARE. -// -/////////////////////////////////////////////////////////////////////////////// - -#include <gtest/gtest.h> - -#include <gsl/byte> // for byte -#include <gsl/util> // for narrow_cast -#include <gsl/multi_span> // for multi_span, contiguous_span_iterator, dim - -#include <algorithm> // for fill, for_each -#include <array> // for array -#include <iostream> // for ptrdiff_t, size_t -#include <iterator> // for reverse_iterator, begin, end, operator!= -#include <numeric> // for iota -#include <stddef.h> // for ptrdiff_t -#include <string> // for string -#include <vector> // for vector - -namespace gsl -{ -struct fail_fast; -} // namespace gsl - -using namespace std; -using namespace gsl; - -namespace -{ -static constexpr char deathstring[] = "Expected Death"; -struct BaseClass -{ -}; -struct DerivedClass : BaseClass -{ -}; - -void overloaded_func(multi_span<const int, dynamic_range, 3, 5> exp, int expected_value) -{ - for (auto val : exp) { EXPECT_TRUE(val == expected_value); } -} - -void overloaded_func(multi_span<const char, dynamic_range, 3, 5> exp, char expected_value) -{ - for (auto val : exp) { EXPECT_TRUE(val == expected_value); } -} - -void iterate_second_column(multi_span<int, dynamic_range, dynamic_range> av) -{ - auto length = av.size() / 2; - - // view to the second column - auto section = av.section({0, 1}, {length, 1}); - - EXPECT_TRUE(section.size() == length); - for (auto i = 0; i < section.size(); ++i) { EXPECT_TRUE(section[i][0] == av[i][1]); } - - for (auto i = 0; i < section.size(); ++i) - { - auto idx = multi_span_index<2>{i, 0}; // avoid braces inside the CHECK macro - EXPECT_TRUE(section[idx] == av[i][1]); - } - - EXPECT_TRUE(section.bounds().index_bounds()[0] == length); - EXPECT_TRUE(section.bounds().index_bounds()[1] == 1); - for (auto i = 0; i < section.bounds().index_bounds()[0]; ++i) - { - for (auto j = 0; j < section.bounds().index_bounds()[1]; ++j) - { - auto idx = multi_span_index<2>{i, j}; // avoid braces inside the CHECK macro - EXPECT_TRUE(section[idx] == av[i][1]); - } - } - - auto check_sum = 0; - for (auto i = 0; i < length; ++i) { check_sum += av[i][1]; } - - { - auto idx = 0; - auto sum = 0; - for (auto num : section) - { - EXPECT_TRUE(num == av[idx][1]); - sum += num; - idx++; - } - - EXPECT_TRUE(sum == check_sum); - } - { - auto idx = length - 1; - auto sum = 0; - for (auto iter = section.rbegin(); iter != section.rend(); ++iter) - { - EXPECT_TRUE(*iter == av[idx][1]); - sum += *iter; - idx--; - } - - EXPECT_TRUE(sum == check_sum); - } -} -template <class Bounds> -void fn(const Bounds&) -{ - static_assert(Bounds::static_size == 60, "static bounds is wrong size"); -} - -} // namespace - -TEST(multi_span_test, default_constructor) -{ - { - multi_span<int> s; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int> cs; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - { - multi_span<int, 0> s; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int, 0> cs; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 1> s; - EXPECT_TRUE(s.length() == 1); - EXPECT_TRUE(s.data() == nullptr); // explains why it can't compile -#endif - } - - { - multi_span<int> s{}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int> cs{}; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } -} - -TEST(multi_span_test, from_nullptr_constructor) -{ - { - multi_span<int> s = nullptr; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int> cs = nullptr; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - { - multi_span<int, 0> s = nullptr; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int, 0> cs = nullptr; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 1> s = nullptr; - EXPECT_TRUE(s.length() == 1); - EXPECT_TRUE(s.data() == nullptr); // explains why it can't compile -#endif - } - - { - multi_span<int> s{nullptr}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int> cs{nullptr}; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - { - multi_span<int*> s{nullptr}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int*> cs{nullptr}; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } -} - -TEST(multi_span_test, from_nullptr_length_constructor) { - { - multi_span<int> s{nullptr, 0}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int> cs{nullptr, 0}; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - { - multi_span<int, 0> s{nullptr, 0}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int, 0> cs{nullptr, 0}; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - std::set_terminate([] { - std::cerr << "Expected Death. from_nullptr_length_constructor"; - std::abort(); - }); - - { - auto workaround_macro = []() { const multi_span<int> s{nullptr, 1}; }; - EXPECT_DEATH(workaround_macro(), deathstring); - - auto const_workaround_macro = []() { const multi_span<const int> cs{nullptr, 1}; }; - EXPECT_DEATH(const_workaround_macro(), deathstring); - } - - { - auto workaround_macro = []() { const multi_span<int, 0> s{nullptr, 1}; }; - EXPECT_DEATH(workaround_macro(), deathstring); - - auto const_workaround_macro = []() { const multi_span<const int, 0> s{nullptr, 1}; }; - EXPECT_DEATH(const_workaround_macro(), deathstring); - } - - { - multi_span<int*> s{nullptr, 0}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - - multi_span<const int*> cs{nullptr, 0}; - EXPECT_TRUE(cs.length() == 0); - EXPECT_TRUE(cs.data() == nullptr); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 1> s{nullptr, 0}; - EXPECT_TRUE(s.length() == 1); - EXPECT_TRUE(s.data() == nullptr); // explains why it can't compile -#endif - } -} - -TEST(multi_span_test, from_element_constructor) -{ - int i = 5; - - { - multi_span<int> s = i; - EXPECT_TRUE(s.length() == 1); - EXPECT_TRUE(s.data() == &i); - EXPECT_TRUE(s[0] == 5); - - multi_span<const int> cs = i; - EXPECT_TRUE(cs.length() == 1); - EXPECT_TRUE(cs.data() == &i); - EXPECT_TRUE(cs[0] == 5); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - const j = 1; - multi_span<int, 0> s = j; -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 0> s = i; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == &i); -#endif - } - - { - multi_span<int, 1> s = i; - EXPECT_TRUE(s.length() == 1); - EXPECT_TRUE(s.data() == &i); - EXPECT_TRUE(s[0] == 5); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 2> s = i; - EXPECT_TRUE(s.length() == 2); - EXPECT_TRUE(s.data() == &i); -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - auto get_a_temp = []() -> int { return 4; }; - auto use_a_span = [](multi_span<int> s) { (void) s; }; - use_a_span(get_a_temp()); -#endif - } -} - -TEST(multi_span_test, from_pointer_length_constructor) -{ - int arr[4] = {1, 2, 3, 4}; - - { - multi_span<int> s{&arr[0], 2}; - EXPECT_TRUE(s.length() == 2); - EXPECT_TRUE(s.data() == &arr[0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[1] == 2); - } - - { - multi_span<int, 2> s{&arr[0], 2}; - EXPECT_TRUE(s.length() == 2); - EXPECT_TRUE(s.data() == &arr[0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[1] == 2); - } - - { - int* p = nullptr; - multi_span<int> s{p, 0}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == nullptr); - } - - std::set_terminate([] { - std::cerr << "Expected Death. from_pointer_length_constructor"; - std::abort(); - }); - - { - int* p = nullptr; - auto workaround_macro = [=]() { const multi_span<int> s{p, 2}; }; - EXPECT_DEATH(workaround_macro(), deathstring); - } -} - -TEST(multi_span_test, from_pointer_pointer_constructor) -{ - int arr[4] = {1, 2, 3, 4}; - - { - multi_span<int> s{&arr[0], &arr[2]}; - EXPECT_TRUE(s.length() == 2); - EXPECT_TRUE(s.data() == &arr[0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[1] == 2); - } - - { - multi_span<int, 2> s{&arr[0], &arr[2]}; - EXPECT_TRUE(s.length() == 2); - EXPECT_TRUE(s.data() == &arr[0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[1] == 2); - } - - { - multi_span<int> s{&arr[0], &arr[0]}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == &arr[0]); - } - - { - multi_span<int, 0> s{&arr[0], &arr[0]}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == &arr[0]); - } - - - std::set_terminate([] { - std::cerr << "Expected Death. from_pointer_pointer_constructor"; - std::abort(); - }); - - { - auto workaround_macro = [&]() { const multi_span<int> s{&arr[1], &arr[0]}; }; - EXPECT_DEATH(workaround_macro(), deathstring); - } - - { - int* p = nullptr; - auto workaround_macro = [&]() { const multi_span<int> s{&arr[0], p}; }; - EXPECT_DEATH(workaround_macro(), deathstring); - } - - { - int* p = nullptr; - auto workaround_macro = [&]() { const multi_span<int> s{p, p}; }; - EXPECT_DEATH(workaround_macro(), deathstring); - } - - { - int* p = nullptr; - auto workaround_macro = [&]() { const multi_span<int> s{&arr[0], p}; }; - EXPECT_DEATH(workaround_macro(), deathstring); - } -} - -TEST(multi_span_test, from_array_constructor) -{ - int arr[5] = {1, 2, 3, 4, 5}; - - { - multi_span<int> s{arr}; - EXPECT_TRUE(s.length() == 5); - EXPECT_TRUE(s.data() == &arr[0]); - } - - { - multi_span<int, 5> s{arr}; - EXPECT_TRUE(s.length() == 5); - EXPECT_TRUE(s.data() == &arr[0]); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 6> s{arr}; -#endif - } - - { - multi_span<int, 0> s{arr}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == &arr[0]); - } - - int arr2d[2][3] = {1, 2, 3, 4, 5, 6}; - - { - multi_span<int> s{arr2d}; - EXPECT_TRUE(s.length() == 6); - EXPECT_TRUE(s.data() == &arr2d[0][0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[5] == 6); - } - - { - multi_span<int, 0> s{arr2d}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == &arr2d[0][0]); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 5> s{arr2d}; -#endif - } - - { - multi_span<int, 6> s{arr2d}; - EXPECT_TRUE(s.length() == 6); - EXPECT_TRUE(s.data() == &arr2d[0][0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[5] == 6); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 7> s{arr2d}; -#endif - } - - { - multi_span<int[3]> s{arr2d[0]}; - EXPECT_TRUE(s.length() == 1); - EXPECT_TRUE(s.data() == &arr2d[0]); - } - - { - multi_span<int, 2, 3> s{arr2d}; - EXPECT_TRUE(s.length() == 6); - EXPECT_TRUE(s.data() == &arr2d[0][0]); - auto workaround_macro = [&]() { return s[{1, 2}] == 6; }; - EXPECT_TRUE(workaround_macro()); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 3, 3> s{arr2d}; -#endif - } - - int arr3d[2][3][2] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12}; - - { - multi_span<int> s{arr3d}; - EXPECT_TRUE(s.length() == 12); - EXPECT_TRUE(s.data() == &arr3d[0][0][0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[11] == 12); - } - - { - multi_span<int, 0> s{arr3d}; - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == &arr3d[0][0][0]); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 11> s{arr3d}; -#endif - } - - { - multi_span<int, 12> s{arr3d}; - EXPECT_TRUE(s.length() == 12); - EXPECT_TRUE(s.data() == &arr3d[0][0][0]); - EXPECT_TRUE(s[0] == 1); - EXPECT_TRUE(s[5] == 6); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 13> s{arr3d}; -#endif - } - - { - multi_span<int[3][2]> s{arr3d[0]}; - EXPECT_TRUE(s.length() == 1); - EXPECT_TRUE(s.data() == &arr3d[0]); - } - - { - multi_span<int, 3, 2, 2> s{arr3d}; - EXPECT_TRUE(s.length() == 12); - EXPECT_TRUE(s.data() == &arr3d[0][0][0]); - auto workaround_macro = [&]() { return s[{2, 1, 0}] == 11; }; - EXPECT_TRUE(workaround_macro()); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 3, 3, 3> s{arr3d}; -#endif - } -} - -TEST(multi_span_test, from_dynamic_array_constructor) -{ - double(*arr)[3][4] = new double[100][3][4]; - - std::set_terminate([] { - std::cerr << "Expected Death. from_nullptr_length_constructor"; - std::abort(); - }); - - { - multi_span<double, dynamic_range, 3, 4> s(arr, 10); - EXPECT_TRUE(s.length() == 120); - EXPECT_TRUE(s.data() == &arr[0][0][0]); - EXPECT_DEATH(s[10][3][4], deathstring); - } - - { - multi_span<double, dynamic_range, 4, 3> s(arr, 10); - EXPECT_TRUE(s.length() == 120); - EXPECT_TRUE(s.data() == &arr[0][0][0]); - } - - { - multi_span<double> s(arr, 10); - EXPECT_TRUE(s.length() == 120); - EXPECT_TRUE(s.data() == &arr[0][0][0]); - } - - { - multi_span<double, dynamic_range, 3, 4> s(arr, 0); - EXPECT_TRUE(s.length() == 0); - EXPECT_TRUE(s.data() == &arr[0][0][0]); - } - - delete[] arr; -} - -TEST(multi_span_test, from_std_array_constructor) -{ - std::array<int, 4> arr = {1, 2, 3, 4}; - - { - multi_span<int> s{arr}; - EXPECT_TRUE(s.size() == narrow_cast<ptrdiff_t>(arr.size())); - EXPECT_TRUE(s.data() == arr.data()); - - multi_span<const int> cs{arr}; - EXPECT_TRUE(cs.size() == narrow_cast<ptrdiff_t>(arr.size())); - EXPECT_TRUE(cs.data() == arr.data()); - } - - { - multi_span<int, 4> s{arr}; - EXPECT_TRUE(s.size() == narrow_cast<ptrdiff_t>(arr.size())); - EXPECT_TRUE(s.data() == arr.data()); - - multi_span<const int, 4> cs{arr}; - EXPECT_TRUE(cs.size() == narrow_cast<ptrdiff_t>(arr.size())); - EXPECT_TRUE(cs.data() == arr.data()); - } - - { - multi_span<int, 2> s{arr}; - EXPECT_TRUE(s.size() == 2); - EXPECT_TRUE(s.data() == arr.data()); - - multi_span<const int, 2> cs{arr}; - EXPECT_TRUE(cs.size() == 2); - EXPECT_TRUE(cs.data() == arr.data()); - } - - { - multi_span<int, 0> s{arr}; - EXPECT_TRUE(s.size() == 0); - EXPECT_TRUE(s.data() == arr.data()); - - multi_span<const int, 0> cs{arr}; - EXPECT_TRUE(cs.size() == 0); - EXPECT_TRUE(cs.data() == arr.data()); - } - - // TODO This is currently an unsupported scenario. We will come back to it as we revise - // the multidimensional interface and what transformations between dimensionality look like - //{ - // multi_span<int, 2, 2> s{arr}; - // EXPECT_TRUE(s.size() == narrow_cast<ptrdiff_t>(arr.size())); - // EXPECT_TRUE(s.data() == arr.data()); - //} - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 5> s{arr}; -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - auto get_an_array = []() { return std::array<int, 4>{1, 2, 3, 4}; }; - auto take_a_span = [](multi_span<int> s) { (void) s; }; - // try to take a temporary std::array - take_a_span(get_an_array()); -#endif - } -} - -TEST(multi_span_test, from_const_std_array_constructor) -{ - const std::array<int, 4> arr = {1, 2, 3, 4}; - - { - multi_span<const int> s{arr}; - EXPECT_TRUE(s.size() == narrow_cast<ptrdiff_t>(arr.size())); - EXPECT_TRUE(s.data() == arr.data()); - } - - { - multi_span<const int, 4> s{arr}; - EXPECT_TRUE(s.size() == narrow_cast<ptrdiff_t>(arr.size())); - EXPECT_TRUE(s.data() == arr.data()); - } - - { - multi_span<const int, 2> s{arr}; - EXPECT_TRUE(s.size() == 2); - EXPECT_TRUE(s.data() == arr.data()); - } - - { - multi_span<const int, 0> s{arr}; - EXPECT_TRUE(s.size() == 0); - EXPECT_TRUE(s.data() == arr.data()); - } - - // TODO This is currently an unsupported scenario. We will come back to it as we revise - // the multidimensional interface and what transformations between dimensionality look like - //{ - // multi_span<int, 2, 2> s{arr}; - // EXPECT_TRUE(s.size() == narrow_cast<ptrdiff_t>(arr.size())); - // EXPECT_TRUE(s.data() == arr.data()); - //} - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<const int, 5> s{arr}; -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - auto get_an_array = []() -> const std::array<int, 4> { return {1, 2, 3, 4}; }; - auto take_a_span = [](multi_span<const int> s) { (void) s; }; - // try to take a temporary std::array - take_a_span(get_an_array()); -#endif - } -} - -TEST(multi_span_test, from_container_constructor) -{ - std::vector<int> v = {1, 2, 3}; - const std::vector<int> cv = v; - - { - multi_span<int> s{v}; - EXPECT_TRUE(s.size() == narrow_cast<std::ptrdiff_t>(v.size())); - EXPECT_TRUE(s.data() == v.data()); - - multi_span<const int> cs{v}; - EXPECT_TRUE(cs.size() == narrow_cast<std::ptrdiff_t>(v.size())); - EXPECT_TRUE(cs.data() == v.data()); - } - - std::string str = "hello"; - const std::string cstr = "hello"; - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<char> s{str}; - EXPECT_TRUE(s.size() == narrow_cast<std::ptrdiff_t>(str.size())); - EXPECT_TRUE(s.data() == str.data()); -#endif - multi_span<const char> cs{str}; - EXPECT_TRUE(cs.size() == narrow_cast<std::ptrdiff_t>(str.size())); - EXPECT_TRUE(cs.data() == str.data()); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<char> s{cstr}; -#endif - multi_span<const char> cs{cstr}; - EXPECT_TRUE(cs.size() == narrow_cast<std::ptrdiff_t>(cstr.size())); - EXPECT_TRUE(cs.data() == cstr.data()); - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - auto get_temp_vector = []() -> std::vector<int> { return {}; }; - auto use_span = [](multi_span<int> s) { (void) s; }; - use_span(get_temp_vector()); -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - auto get_temp_string = []() -> std::string { return {}; }; - auto use_span = [](multi_span<char> s) { (void) s; }; - use_span(get_temp_string()); -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - auto get_temp_vector = []() -> const std::vector<int> { return {}; }; - auto use_span = [](multi_span<const char> s) { (void) s; }; - use_span(get_temp_vector()); -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - auto get_temp_string = []() -> const std::string { return {}; }; - auto use_span = [](multi_span<const char> s) { (void) s; }; - use_span(get_temp_string()); -#endif - } - - { -#ifdef CONFIRM_COMPILATION_ERRORS - std::map<int, int> m; - multi_span<int> s{m}; -#endif - } -} - -TEST(multi_span_test, from_convertible_span_constructor) -{ -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<int, 7, 4, 2> av1(nullptr, b1); - - std::set_terminate([] { - std::cerr << "Expected Death. from_convertible_span_constructor"; - std::abort(); - }); - - auto f = [&]() { multi_span<int, 7, 4, 2> av1(nullptr); }; - EXPECT_DEATH(f(), deathstring); -#endif - -#ifdef CONFIRM_COMPILATION_ERRORS - static_bounds<std::size_t, 7, dynamic_range, 2> b12(b11); - b12 = b11; - b11 = b12; - - multi_span<int, dynamic_range> av1 = nullptr; - multi_span<int, 7, dynamic_range, 2> av2(av1); - multi_span<int, 7, 4, 2> av2(av1); -#endif - - multi_span<DerivedClass> avd; -#ifdef CONFIRM_COMPILATION_ERRORS - multi_span<BaseClass> avb = avd; -#endif - multi_span<const DerivedClass> avcd = avd; - (void) avcd; -} - -TEST(multi_span_test, copy_move_and_assignment) -{ - multi_span<int> s1; - EXPECT_TRUE(s1.empty()); - - int arr[] = {3, 4, 5}; - - multi_span<const int> s2 = arr; - EXPECT_TRUE(s2.length() == 3); - EXPECT_TRUE(s2.data() == &arr[0]); - - s2 = s1; - EXPECT_TRUE(s2.empty()); - - auto get_temp_span = [&]() -> multi_span<int> { return {&arr[1], 2}; }; - auto use_span = [&](multi_span<const int> s) { - EXPECT_TRUE(s.length() == 2); - EXPECT_TRUE(s.data() == &arr[1]); - }; - use_span(get_temp_span()); - - s1 = get_temp_span(); - EXPECT_TRUE(s1.length() == 2); - EXPECT_TRUE(s1.data() == &arr[1]); -} - -TEST(multi_span_test, as_multi_span_reshape) -{ - int a[3][4][5]; - auto av = as_multi_span(a); - fn(av.bounds()); - auto av2 = as_multi_span(av, dim<60>()); - auto av3 = as_multi_span(av2, dim<3>(), dim<4>(), dim<5>()); - auto av4 = as_multi_span(av3, dim<4>(), dim(3), dim<5>()); - auto av5 = as_multi_span(av4, dim<3>(), dim<4>(), dim<5>()); - auto av6 = as_multi_span(av5, dim<12>(), dim(5)); - - fill(av6.begin(), av6.end(), 1); - - auto av7 = as_bytes(av6); - - auto av8 = as_multi_span<int>(av7); - - EXPECT_TRUE(av8.size() == av6.size()); - for (auto i = 0; i < av8.size(); i++) { EXPECT_TRUE(av8[i] == 1); } -} - -TEST(multi_span_test, first) -{ - int arr[5] = {1, 2, 3, 4, 5}; - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE(av.first<2>().bounds() == static_bounds<2>()); - EXPECT_TRUE(av.first<2>().length() == 2); - EXPECT_TRUE(av.first(2).length() == 2); - } - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE(av.first<0>().bounds() == static_bounds<0>()); - EXPECT_TRUE(av.first<0>().length() == 0); - EXPECT_TRUE(av.first(0).length() == 0); - } - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE(av.first<5>().bounds() == static_bounds<5>()); - EXPECT_TRUE(av.first<5>().length() == 5); - EXPECT_TRUE(av.first(5).length() == 5); - } - - { - multi_span<int, 5> av = arr; -#ifdef CONFIRM_COMPILATION_ERRORS - EXPECT_TRUE(av.first<6>().bounds() == static_bounds<6>()); - EXPECT_TRUE(av.first<6>().length() == 6); - EXPECT_TRUE(av.first<-1>().length() == -1); -#endif - - std::set_terminate([] { - std::cerr << "Expected Death. first"; - std::abort(); - }); - - EXPECT_DEATH(av.first(6).length(), deathstring); - } - - { - multi_span<int, dynamic_range> av; - EXPECT_TRUE(av.first<0>().bounds() == static_bounds<0>()); - EXPECT_TRUE(av.first<0>().length() == 0); - EXPECT_TRUE(av.first(0).length() == 0); - } -} - -TEST(multi_span_test, last) -{ - int arr[5] = {1, 2, 3, 4, 5}; - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE(av.last<2>().bounds() == static_bounds<2>()); - EXPECT_TRUE(av.last<2>().length() == 2); - EXPECT_TRUE(av.last(2).length() == 2); - } - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE(av.last<0>().bounds() == static_bounds<0>()); - EXPECT_TRUE(av.last<0>().length() == 0); - EXPECT_TRUE(av.last(0).length() == 0); - } - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE(av.last<5>().bounds() == static_bounds<5>()); - EXPECT_TRUE(av.last<5>().length() == 5); - EXPECT_TRUE(av.last(5).length() == 5); - } - - { - multi_span<int, 5> av = arr; -#ifdef CONFIRM_COMPILATION_ERRORS - EXPECT_TRUE(av.last<6>().bounds() == static_bounds<6>()); - EXPECT_TRUE(av.last<6>().length() == 6); -#endif - - std::set_terminate([] { - std::cerr << "Expected Death. last"; - std::abort(); - }); - - EXPECT_DEATH(av.last(6).length(), deathstring); - } - - { - multi_span<int, dynamic_range> av; - EXPECT_TRUE(av.last<0>().bounds() == static_bounds<0>()); - EXPECT_TRUE(av.last<0>().length() == 0); - EXPECT_TRUE(av.last(0).length() == 0); - } -} - -TEST(multi_span_test, subspan) -{ - int arr[5] = {1, 2, 3, 4, 5}; - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE((av.subspan<2, 2>().bounds()) == static_bounds<2>()); - EXPECT_TRUE((av.subspan<2, 2>().length()) == 2); - EXPECT_TRUE(av.subspan(2, 2).length() == 2); - EXPECT_TRUE(av.subspan(2, 3).length() == 3); - } - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE((av.subspan<0, 0>().bounds()) == static_bounds<0>()); - EXPECT_TRUE((av.subspan<0, 0>().length()) == 0); - EXPECT_TRUE(av.subspan(0, 0).length() == 0); - } - - - std::set_terminate([] { - std::cerr << "Expected Death. subspan"; - std::abort(); - }); - { - multi_span<int, 5> av = arr; - EXPECT_TRUE((av.subspan<0, 5>().bounds()) == static_bounds<5>()); - EXPECT_TRUE((av.subspan<0, 5>().length()) == 5); - EXPECT_TRUE(av.subspan(0, 5).length() == 5); - EXPECT_DEATH(av.subspan(0, 6).length(), deathstring); - EXPECT_DEATH(av.subspan(1, 5).length(), deathstring); - } - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE((av.subspan<5, 0>().bounds()) == static_bounds<0>()); - EXPECT_TRUE((av.subspan<5, 0>().length()) == 0); - EXPECT_TRUE(av.subspan(5, 0).length() == 0); - EXPECT_DEATH(av.subspan(6, 0).length(), deathstring); - } - - { - multi_span<int, dynamic_range> av; - EXPECT_TRUE((av.subspan<0, 0>().bounds()) == static_bounds<0>()); - EXPECT_TRUE((av.subspan<0, 0>().length()) == 0); - EXPECT_TRUE(av.subspan(0, 0).length() == 0); - EXPECT_DEATH((av.subspan<1, 0>().length()), deathstring); - } - - { - multi_span<int> av; - EXPECT_TRUE(av.subspan(0).length() == 0); - EXPECT_DEATH(av.subspan(1).length(), deathstring); - } - - { - multi_span<int> av = arr; - EXPECT_TRUE(av.subspan(0).length() == 5); - EXPECT_TRUE(av.subspan(1).length() == 4); - EXPECT_TRUE(av.subspan(4).length() == 1); - EXPECT_TRUE(av.subspan(5).length() == 0); - // Disabled test instead of fixing since multi_span is deprecated. (PR#835) -#if !(defined(__GNUC__) && __GNUC__ == 8) - EXPECT_DEATH(av.subspan(6).length(), deathstring); -#endif - auto av2 = av.subspan(1); - for (int i = 0; i < 4; ++i) EXPECT_TRUE(av2[i] == i + 2); - } - - { - multi_span<int, 5> av = arr; - EXPECT_TRUE(av.subspan(0).length() == 5); - EXPECT_TRUE(av.subspan(1).length() == 4); - EXPECT_TRUE(av.subspan(4).length() == 1); - EXPECT_TRUE(av.subspan(5).length() == 0); - EXPECT_DEATH(av.subspan(6).length(), deathstring); - auto av2 = av.subspan(1); - for (int i = 0; i < 4; ++i) EXPECT_TRUE(av2[i] == i + 2); - } -} - -TEST(multi_span_test, rank) -{ - int arr[2] = {1, 2}; - - { - multi_span<int> s; - EXPECT_TRUE(s.rank() == static_cast<size_t>(1)); - } - - { - multi_span<int, 2> s = arr; - EXPECT_TRUE(s.rank() == static_cast<size_t>(1)); - } - - int arr2d[1][1] = {}; - { - multi_span<int, 1, 1> s = arr2d; - EXPECT_TRUE(s.rank() == static_cast<size_t>(2)); - } -} - -TEST(multi_span_test, extent) -{ - std::set_terminate([] { - std::cerr << "Expected Death. extent"; - std::abort(); - }); - - { - multi_span<int> s; - EXPECT_TRUE(s.extent() == 0); - EXPECT_TRUE(s.extent(0) == 0); - EXPECT_DEATH(s.extent(1), deathstring); -#ifdef CONFIRM_COMPILATION_ERRORS - EXPECT_TRUE(s.extent<1>() == 0); -#endif - } - - { - multi_span<int, 0> s; - EXPECT_TRUE(s.extent() == 0); - EXPECT_TRUE(s.extent(0) == 0); - EXPECT_DEATH(s.extent(1), deathstring); - } - - { - int arr2d[1][2] = {}; - - multi_span<int, 1, 2> s = arr2d; - EXPECT_TRUE(s.extent() == 1); - EXPECT_TRUE(s.extent<0>() == 1); - EXPECT_TRUE(s.extent<1>() == 2); - EXPECT_TRUE(s.extent(0) == 1); - EXPECT_TRUE(s.extent(1) == 2); - EXPECT_DEATH(s.extent(3), deathstring); - } - - { - int arr2d[1][2] = {}; - - multi_span<int, 0, 2> s = arr2d; - EXPECT_TRUE(s.extent() == 0); - EXPECT_TRUE(s.extent<0>() == 0); - EXPECT_TRUE(s.extent<1>() == 2); - EXPECT_TRUE(s.extent(0) == 0); - EXPECT_TRUE(s.extent(1) == 2); - EXPECT_DEATH(s.extent(3), deathstring); - } -} - -TEST(multi_span_test, operator_function_call) -{ - int arr[4] = {1, 2, 3, 4}; - - std::set_terminate([] { - std::cerr << "Expected Death. operator_function_call"; - std::abort(); - }); - - { - multi_span<int> s = arr; - EXPECT_TRUE(s(0) == 1); - EXPECT_DEATH(s(5), deathstring); - } - - int arr2d[2][3] = {1, 2, 3, 4, 5, 6}; - - { - multi_span<int, 2, 3> s = arr2d; - EXPECT_TRUE(s(0, 0) == 1); - EXPECT_TRUE(s(0, 1) == 2); - EXPECT_TRUE(s(1, 2) == 6); - } - - int arr3d[2][2][2] = {1, 2, 3, 4, 5, 6, 7, 8}; - - { - multi_span<int, 2, 2, 2> s = arr3d; - EXPECT_TRUE(s(0, 0, 0) == 1); - EXPECT_TRUE(s(1, 1, 1) == 8); - } -} - -TEST(multi_span_test, comparison_operators) -{ - { - int arr[10][2]; - auto s1 = as_multi_span(arr); - multi_span<const int, dynamic_range, 2> s2 = s1; - - EXPECT_TRUE(s1 == s2); - - multi_span<int, 20> s3 = as_multi_span(s1, dim(20)); - EXPECT_TRUE(s3 == s2); - EXPECT_TRUE(s3 == s1); - } - { - multi_span<int> s1 = nullptr; - multi_span<int> s2 = nullptr; - EXPECT_TRUE(s1 == s2); - EXPECT_FALSE(s1 != s2); - EXPECT_FALSE(s1 < s2); - EXPECT_TRUE(s1 <= s2); - EXPECT_FALSE(s1 > s2); - EXPECT_TRUE(s1 >= s2); - EXPECT_TRUE(s2 == s1); - EXPECT_FALSE(s2 != s1); - EXPECT_FALSE(s2 < s1); - EXPECT_TRUE(s2 <= s1); - EXPECT_FALSE(s2 > s1); - EXPECT_TRUE(s2 >= s1); - } - - - { - int arr[] = {2, 1}; // bigger - - multi_span<int> s1 = nullptr; - multi_span<int> s2 = arr; - - EXPECT_TRUE(s1 != s2); - EXPECT_TRUE(s2 != s1); - EXPECT_FALSE(s1 == s2); - EXPECT_FALSE(s2 == s1); - EXPECT_TRUE(s1 < s2); - EXPECT_FALSE(s2 < s1); - EXPECT_TRUE(s1 <= s2); - EXPECT_FALSE(s2 <= s1); - EXPECT_TRUE(s2 > s1); - EXPECT_FALSE(s1 > s2); - EXPECT_TRUE(s2 >= s1); - EXPECT_FALSE(s1 >= s2); - } - - { - int arr1[] = {1, 2}; - int arr2[] = {1, 2}; - multi_span<int> s1 = arr1; - multi_span<int> s2 = arr2; - - EXPECT_TRUE(s1 == s2); - EXPECT_FALSE(s1 != s2); - EXPECT_FALSE(s1 < s2); - EXPECT_TRUE(s1 <= s2); - EXPECT_FALSE(s1 > s2); - EXPECT_TRUE(s1 >= s2); - EXPECT_TRUE(s2 == s1); - EXPECT_FALSE(s2 != s1); - EXPECT_FALSE(s2 < s1); - EXPECT_TRUE(s2 <= s1); - EXPECT_FALSE(s2 > s1); - EXPECT_TRUE(s2 >= s1); - } - - { - int arr[] = {1, 2, 3}; - - multi_span<int> s1 = {&arr[0], 2}; // shorter - multi_span<int> s2 = arr; // longer - - EXPECT_TRUE(s1 != s2); - EXPECT_TRUE(s2 != s1); - EXPECT_FALSE(s1 == s2); - EXPECT_FALSE(s2 == s1); - EXPECT_TRUE(s1 < s2); - EXPECT_FALSE(s2 < s1); - EXPECT_TRUE(s1 <= s2); - EXPECT_FALSE(s2 <= s1); - EXPECT_TRUE(s2 > s1); - EXPECT_FALSE(s1 > s2); - EXPECT_TRUE(s2 >= s1); - EXPECT_FALSE(s1 >= s2); - } - - { - int arr1[] = {1, 2}; // smaller - int arr2[] = {2, 1}; // bigger - - multi_span<int> s1 = arr1; - multi_span<int> s2 = arr2; - - EXPECT_TRUE(s1 != s2); - EXPECT_TRUE(s2 != s1); - EXPECT_FALSE(s1 == s2); - EXPECT_FALSE(s2 == s1); - EXPECT_TRUE(s1 < s2); - EXPECT_FALSE(s2 < s1); - EXPECT_TRUE(s1 <= s2); - EXPECT_FALSE(s2 <= s1); - EXPECT_TRUE(s2 > s1); - EXPECT_FALSE(s1 > s2); - EXPECT_TRUE(s2 >= s1); - EXPECT_FALSE(s1 >= s2); - } -} - -TEST(multi_span_test, basics) -{ - auto ptr = as_multi_span(new int[10], 10); - fill(ptr.begin(), ptr.end(), 99); - for (int num : ptr) { EXPECT_TRUE(num == 99); } - - delete[] ptr.data(); -} - -TEST(multi_span_test, bounds_checks) -{ - int arr[10][2]; - auto av = as_multi_span(arr); - - fill(begin(av), end(av), 0); - - av[2][0] = 1; - av[1][1] = 3; - - std::set_terminate([] { - std::cerr << "Expected Death. bounds_check"; - std::abort(); - }); - - // out of bounds - EXPECT_DEATH(av[1][3] = 3, deathstring); - EXPECT_DEATH((av[{1, 3}] = 3), deathstring); - - EXPECT_DEATH(av[10][2], deathstring); - EXPECT_DEATH((av[{10, 2}]), deathstring); - - EXPECT_DEATH(av[-1][0], deathstring); - EXPECT_DEATH((av[{-1, 0}]), deathstring); - - EXPECT_DEATH(av[0][-1], deathstring); - EXPECT_DEATH((av[{0, -1}]), deathstring); -} - -TEST(multi_span_test, span_parameter_test) -{ - auto data = new int[4][3][5]; - - auto av = as_multi_span(data, 4); - - EXPECT_TRUE(av.size() == 60); - - fill(av.begin(), av.end(), 34); - - int count = 0; - for_each(av.rbegin(), av.rend(), [&](int val) { count += val; }); - EXPECT_TRUE(count == 34 * 60); - overloaded_func(av, 34); - - overloaded_func(as_multi_span(av, dim(4), dim(3), dim(5)), 34); - - delete[] data; -} - -TEST(multi_span_test, md_access) -{ - auto width = 5, height = 20; - - auto imgSize = width * height; - auto image_ptr = new int[narrow_cast<std::size_t>(imgSize)][3]; - - // size check will be done - auto image_view = - as_multi_span(as_multi_span(image_ptr, imgSize), dim(height), dim(width), dim<3>()); - - iota(image_view.begin(), image_view.end(), 1); - - int expected = 0; - for (auto i = 0; i < height; i++) - { - for (auto j = 0; j < width; j++) - { - EXPECT_TRUE(expected + 1 == image_view[i][j][0]); - EXPECT_TRUE(expected + 2 == image_view[i][j][1]); - EXPECT_TRUE(expected + 3 == image_view[i][j][2]); - - auto val = image_view[{i, j, 0}]; - EXPECT_TRUE(expected + 1 == val); - val = image_view[{i, j, 1}]; - EXPECT_TRUE(expected + 2 == val); - val = image_view[{i, j, 2}]; - EXPECT_TRUE(expected + 3 == val); - - expected += 3; - } - } - - delete[] image_ptr; -} - -TEST(multi_span_test, as_multi_span) -{ - { - int* arr = new int[150]; - - auto av = as_multi_span(arr, dim<10>(), dim(3), dim<5>()); - - fill(av.begin(), av.end(), 24); - overloaded_func(av, 24); - - delete[] arr; - - array<int, 15> stdarr{0}; - auto av2 = as_multi_span(stdarr); - overloaded_func(as_multi_span(av2, dim(1), dim<3>(), dim<5>()), 0); - - string str = "ttttttttttttttt"; // size = 15 - auto t = str.data(); - GSL_SUPPRESS(type.4) // NO-FORMAT: attribute // TODO: false positive - (void) t; - auto av3 = as_multi_span(str); - overloaded_func(as_multi_span(av3, dim(1), dim<3>(), dim<5>()), 't'); - } - - { - string str; - multi_span<char> strspan = as_multi_span(str); - (void) strspan; - const string cstr; - multi_span<const char> cstrspan = as_multi_span(cstr); - (void) cstrspan; - } - - { - int a[3][4][5]; - auto av = as_multi_span(a); - const int(*b)[4][5]; - b = a; - auto bv = as_multi_span(b, 3); - - EXPECT_TRUE(av == bv); - - const std::array<double, 3> arr = {0.0, 0.0, 0.0}; - auto cv = as_multi_span(arr); - (void) cv; - - vector<float> vec(3); - auto dv = as_multi_span(vec); - (void) dv; - - #ifdef CONFIRM_COMPILATION_ERRORS - auto dv2 = as_multi_span(std::move(vec)); - #endif - - } -} - -TEST(multi_span_test, empty_spans) -{ - std::set_terminate([] { - std::cerr << "Expected Death. empty_spans"; - std::abort(); - }); - - { - multi_span<int, 0> empty_av(nullptr); - - EXPECT_TRUE(empty_av.bounds().index_bounds() == multi_span_index<1>{0}); - EXPECT_DEATH(empty_av[0], deathstring); - EXPECT_DEATH(empty_av.begin()[0], deathstring); - EXPECT_DEATH(empty_av.cbegin()[0], deathstring); - for (auto& v : empty_av) - { - (void) v; - EXPECT_TRUE(false); - } - } - - { - multi_span<int> empty_av = {}; - EXPECT_TRUE(empty_av.bounds().index_bounds() == multi_span_index<1>{0}); - EXPECT_DEATH(empty_av[0], deathstring); - EXPECT_DEATH(empty_av.begin()[0], deathstring); - EXPECT_DEATH(empty_av.cbegin()[0], deathstring); - for (auto& v : empty_av) - { - (void) v; - EXPECT_TRUE(false); - } - } -} - -TEST(multi_span_test, index_constructor) -{ - auto arr = new int[8]; - for (int i = 0; i < 4; ++i) - { - arr[2 * i] = 4 + i; - arr[2 * i + 1] = i; - } - - multi_span<int, dynamic_range> av(arr, 8); - - ptrdiff_t a[1] = {0}; - multi_span_index<1> i = a; - - EXPECT_TRUE(av[i] == 4); - - auto av2 = as_multi_span(av, dim<4>(), dim(2)); - ptrdiff_t a2[2] = {0, 1}; - multi_span_index<2> i2 = a2; - - EXPECT_TRUE(av2[i2] == 0); - EXPECT_TRUE(av2[0][i] == 4); - - delete[] arr; -} - -TEST(multi_span_test, index_constructors) -{ - { - // components of the same type - multi_span_index<3> i1(0, 1, 2); - EXPECT_TRUE(i1[0] == 0); - - // components of different types - std::size_t c0 = 0; - std::size_t c1 = 1; - multi_span_index<3> i2(c0, c1, 2); - EXPECT_TRUE(i2[0] == 0); - - // from array - multi_span_index<3> i3 = {0, 1, 2}; - EXPECT_TRUE(i3[0] == 0); - - // from other index of the same size type - multi_span_index<3> i4 = i3; - EXPECT_TRUE(i4[0] == 0); - - // default - multi_span_index<3> i7; - EXPECT_TRUE(i7[0] == 0); - - // default - multi_span_index<3> i9 = {}; - EXPECT_TRUE(i9[0] == 0); - } - - { - // components of the same type - multi_span_index<1> i1(0); - EXPECT_TRUE(i1[0] == 0); - - // components of different types - std::size_t c0 = 0; - multi_span_index<1> i2(c0); - EXPECT_TRUE(i2[0] == 0); - - // from array - multi_span_index<1> i3 = {0}; - EXPECT_TRUE(i3[0] == 0); - - // from int - multi_span_index<1> i4 = 0; - EXPECT_TRUE(i4[0] == 0); - - // from other index of the same size type - multi_span_index<1> i5 = i3; - EXPECT_TRUE(i5[0] == 0); - - // default - multi_span_index<1> i8; - EXPECT_TRUE(i8[0] == 0); - - // default - multi_span_index<1> i9 = {}; - EXPECT_TRUE(i9[0] == 0); - } - -#ifdef CONFIRM_COMPILATION_ERRORS - { - multi_span_index<3> i1(0, 1); - multi_span_index<3> i2(0, 1, 2, 3); - multi_span_index<3> i3 = {0}; - multi_span_index<3> i4 = {0, 1, 2, 3}; - multi_span_index<1> i5 = {0, 1}; - } -#endif -} - -TEST(multi_span_test, index_operations) -{ - ptrdiff_t a[3] = {0, 1, 2}; - ptrdiff_t b[3] = {3, 4, 5}; - multi_span_index<3> i = a; - multi_span_index<3> j = b; - - EXPECT_TRUE(i[0] == 0); - EXPECT_TRUE(i[1] == 1); - EXPECT_TRUE(i[2] == 2); - - { - multi_span_index<3> k = i + j; - - EXPECT_TRUE(i[0] == 0); - EXPECT_TRUE(i[1] == 1); - EXPECT_TRUE(i[2] == 2); - EXPECT_TRUE(k[0] == 3); - EXPECT_TRUE(k[1] == 5); - EXPECT_TRUE(k[2] == 7); - } - - { - multi_span_index<3> k = i * 3; - - EXPECT_TRUE(i[0] == 0); - EXPECT_TRUE(i[1] == 1); - EXPECT_TRUE(i[2] == 2); - EXPECT_TRUE(k[0] == 0); - EXPECT_TRUE(k[1] == 3); - EXPECT_TRUE(k[2] == 6); - } - - { - multi_span_index<3> k = 3 * i; - - EXPECT_TRUE(i[0] == 0); - EXPECT_TRUE(i[1] == 1); - EXPECT_TRUE(i[2] == 2); - EXPECT_TRUE(k[0] == 0); - EXPECT_TRUE(k[1] == 3); - EXPECT_TRUE(k[2] == 6); - } - - { - multi_span_index<2> k = details::shift_left(i); - - EXPECT_TRUE(i[0] == 0); - EXPECT_TRUE(i[1] == 1); - EXPECT_TRUE(i[2] == 2); - EXPECT_TRUE(k[0] == 1); - EXPECT_TRUE(k[1] == 2); - } -} - -TEST(multi_span_test, span_section_iteration) -{ - int arr[4][2] = {{4, 0}, {5, 1}, {6, 2}, {7, 3}}; - - // static bounds - { - multi_span<int, 4, 2> av = arr; - iterate_second_column(av); - } - // first bound is dynamic - { - multi_span<int, dynamic_range, 2> av = arr; - iterate_second_column(av); - } - // second bound is dynamic - { - multi_span<int, 4, dynamic_range> av = arr; - iterate_second_column(av); - } - // both bounds are dynamic - { - multi_span<int, dynamic_range, dynamic_range> av = arr; - iterate_second_column(av); - } -} - -TEST(multi_span_test, dynamic_span_section_iteration) -{ - auto height = 4, width = 2; - auto size = height * width; - - auto arr = new int[narrow_cast<std::size_t>(size)]; - for (auto i = 0; i < size; ++i) { arr[i] = i; } - - auto av = as_multi_span(arr, size); - - // first bound is dynamic - { - multi_span<int, dynamic_range, 2> av2 = as_multi_span(av, dim(height), dim(width)); - iterate_second_column(av2); - } - // second bound is dynamic - { - multi_span<int, 4, dynamic_range> av2 = as_multi_span(av, dim(height), dim(width)); - iterate_second_column(av2); - } - // both bounds are dynamic - { - multi_span<int, dynamic_range, dynamic_range> av2 = - as_multi_span(av, dim(height), dim(width)); - iterate_second_column(av2); - } - - delete[] arr; -} - -TEST(multi_span_test, span_structure_size) -{ - double(*arr)[3][4] = new double[100][3][4]; - multi_span<double, dynamic_range, 3, 4> av1(arr, 10); - - struct EffectiveStructure - { - double* v1; - ptrdiff_t v2; - }; - EXPECT_TRUE(sizeof(av1) == sizeof(EffectiveStructure)); - - std::set_terminate([] { - std::cerr << "Expected Death. span_structure_size"; - std::abort(); - }); - - EXPECT_DEATH(av1[10][3][4], deathstring); - - multi_span<const double, dynamic_range, 6, 4> av2 = - as_multi_span(av1, dim(5), dim<6>(), dim<4>()); - (void) av2; - - delete[] arr; -} - -TEST(multi_span_test, fixed_size_conversions) -{ - int arr[] = {1, 2, 3, 4}; - - // converting to an multi_span from an equal size array is ok - multi_span<int, 4> av4 = arr; - EXPECT_TRUE(av4.length() == 4); - - // converting to dynamic_range a_v is always ok - { - multi_span<int, dynamic_range> av = av4; - (void) av; - } - { - multi_span<int, dynamic_range> av = arr; - (void) av; - } - -// initialization or assignment to static multi_span that REDUCES size is NOT ok -#ifdef CONFIRM_COMPILATION_ERRORS - { - multi_span<int, 2> av2 = arr; - } - { - multi_span<int, 2> av2 = av4; - } -#endif - - { - multi_span<int, dynamic_range> av = arr; - multi_span<int, 2> av2 = av; - (void) av2; - } - -#ifdef CONFIRM_COMPILATION_ERRORS - { - multi_span<int, dynamic_range> av = arr; - multi_span<int, 2, 1> av2 = av.as_multi_span(dim<2>(), dim<2>()); - } -#endif - - { - multi_span<int, dynamic_range> av = arr; - multi_span<int, 2, 1> av2 = as_multi_span(av, dim(2), dim(2)); - auto workaround_macro = [&]() { return av2[{1, 0}] == 2; }; - EXPECT_TRUE(workaround_macro()); - } - - // but doing so explicitly is ok - - // you can convert statically - { - multi_span<int, 2> av2 = {arr, 2}; - (void) av2; - } - { - multi_span<int, 1> av2 = av4.first<1>(); - (void) av2; - } - - // ...or dynamically - { - // NB: implicit conversion to multi_span<int,2> from multi_span<int,dynamic_range> - multi_span<int, 1> av2 = av4.first(1); - (void) av2; - } - - // initialization or assignment to static multi_span that requires size INCREASE is not ok. - int arr2[2] = {1, 2}; - -#ifdef CONFIRM_COMPILATION_ERRORS - { - multi_span<int, 4> av4 = arr2; - } - { - multi_span<int, 2> av2 = arr2; - multi_span<int, 4> av4 = av2; - } -#endif - - std::set_terminate([] { - std::cerr << "Expected Death. fixed_size_conversions"; - std::abort(); - }); - - { - auto f = [&]() { - const multi_span<int, 4> av9 = {arr2, 2}; - (void) av9; - }; - EXPECT_DEATH(f(), deathstring); - } - - // this should fail - we are trying to assign a small dynamic a_v to a fixed_size larger one - multi_span<int, dynamic_range> av = arr2; - auto f = [&]() { - const multi_span<int, 4> av2 = av; - (void) av2; - }; - EXPECT_DEATH(f(), deathstring); -} - -TEST(multi_span_test, as_writeable_bytes) -{ - int a[] = {1, 2, 3, 4}; - - { -#ifdef CONFIRM_COMPILATION_ERRORS - // you should not be able to get writeable bytes for const objects - multi_span<const int, dynamic_range> av = a; - auto wav = av.as_writeable_bytes(); -#endif - } - - { - multi_span<int, dynamic_range> av; - auto wav = as_writeable_bytes(av); - EXPECT_TRUE(wav.length() == av.length()); - EXPECT_TRUE(wav.length() == 0); - EXPECT_TRUE(wav.size_bytes() == 0); - } - - { - multi_span<int, dynamic_range> av = a; - auto wav = as_writeable_bytes(av); - EXPECT_TRUE(wav.data() == reinterpret_cast<byte*>(&a[0])); - EXPECT_TRUE(static_cast<std::size_t>(wav.length()) == sizeof(a)); - } -} - -TEST(multi_span_test, iterator) -{ - int a[] = {1, 2, 3, 4}; - - { - multi_span<int, dynamic_range> av = a; - auto wav = as_writeable_bytes(av); - for (auto& b : wav) { -#if defined(__cplusplus) && (__cplusplus >= 201703L) - b = byte{0}; -#else - GSL_SUPPRESS(es.49) - b = byte(0); -#endif - } - - for (std::size_t i = 0; i < 4; ++i) { - EXPECT_TRUE(a[i] == 0); - } - } - - { - multi_span<int, dynamic_range> av = a; - for (auto& n : av) { - n = 1; - } - for (std::size_t i = 0; i < 4; ++i) { - EXPECT_TRUE(a[i] == 1); - } - } -} - -#ifdef CONFIRM_COMPILATION_ERRORS -copy(src_span_static, dst_span_static); -#endif |