| //===----------------------------------------------------------------------===// |
| // |
| // 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++98, c++03 |
| |
| // <utility> |
| |
| // template <class T1, class T2> struct pair |
| |
| // template<class U, class V> pair(U&& x, V&& y); |
| |
| #include <utility> |
| |
| #include "test_macros.h" |
| |
| |
| struct ExplicitT { |
| constexpr explicit ExplicitT(int x) : value(x) {} |
| int value; |
| }; |
| |
| struct ImplicitT { |
| constexpr ImplicitT(int x) : value(x) {} |
| int value; |
| }; |
| |
| struct ExplicitNothrowT { |
| explicit ExplicitNothrowT(int x) noexcept : value(x) {} |
| int value; |
| }; |
| |
| struct ImplicitNothrowT { |
| ImplicitNothrowT(int x) noexcept : value(x) {} |
| int value; |
| }; |
| |
| int main(int, char**) { |
| { // explicit noexcept test |
| static_assert(!std::is_nothrow_constructible<std::pair<ExplicitT, ExplicitT>, int, int>::value, ""); |
| static_assert(!std::is_nothrow_constructible<std::pair<ExplicitNothrowT, ExplicitT>, int, int>::value, ""); |
| static_assert(!std::is_nothrow_constructible<std::pair<ExplicitT, ExplicitNothrowT>, int, int>::value, ""); |
| static_assert( std::is_nothrow_constructible<std::pair<ExplicitNothrowT, ExplicitNothrowT>, int, int>::value, ""); |
| } |
| { // implicit noexcept test |
| static_assert(!std::is_nothrow_constructible<std::pair<ImplicitT, ImplicitT>, int, int>::value, ""); |
| static_assert(!std::is_nothrow_constructible<std::pair<ImplicitNothrowT, ImplicitT>, int, int>::value, ""); |
| static_assert(!std::is_nothrow_constructible<std::pair<ImplicitT, ImplicitNothrowT>, int, int>::value, ""); |
| static_assert( std::is_nothrow_constructible<std::pair<ImplicitNothrowT, ImplicitNothrowT>, int, int>::value, ""); |
| } |
| |
| return 0; |
| } |