//===----------------------------------------------------------------------===// // // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. // See https://llvm.org/LICENSE.txt for license information. // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception // //===----------------------------------------------------------------------===// // UNSUPPORTED: c++03, c++11, c++14, c++17, c++20 // // Test default construction: // // constexpr extents() noexcept = default; // // Remarks: since the standard uses an exposition only array member, dynamic extents // need to be zero initialized! #include #include #include #include "../ConvertibleToIntegral.h" #include "CtorTestCombinations.h" #include "test_macros.h" struct DefaultCtorTest { template static constexpr void test_construction(AllExtents all_ext, Extents, std::index_sequence) { // This function gets called twice: once with Extents being just the dynamic ones, and once with all the extents specified. // We only test during the all extent case, since then Indices is the correct number. This allows us to reuse the same // testing machinery used in other constructor tests. if constexpr (sizeof...(Indices) == E::rank()) { ASSERT_NOEXCEPT(E{}); // Need to construct new expected values, replacing dynamic values with 0 std::array expected_exts{ ((E::static_extent(Indices) == std::dynamic_extent) ? typename AllExtents::value_type(0) : all_ext[Indices])...}; test_runtime_observers(E{}, expected_exts); } } }; int main(int, char**) { test_index_type_combo(); static_assert(test_index_type_combo()); return 0; }