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58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03
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// <utility>
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// template <class T1, class T2> struct pair
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// template<class U, class V> pair(U&& x, V&& y);
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#include <utility>
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#include "test_macros.h"
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struct ExplicitT {
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constexpr explicit ExplicitT(int x) : value(x) {}
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int value;
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};
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struct ImplicitT {
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constexpr ImplicitT(int x) : value(x) {}
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int value;
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};
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struct ExplicitNothrowT {
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explicit ExplicitNothrowT(int x) noexcept : value(x) {}
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int value;
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};
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struct ImplicitNothrowT {
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ImplicitNothrowT(int x) noexcept : value(x) {}
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int value;
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};
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int main(int, char**) {
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{ // explicit noexcept test
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static_assert(!std::is_nothrow_constructible<std::pair<ExplicitT, ExplicitT>, int, int>::value, "");
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static_assert(!std::is_nothrow_constructible<std::pair<ExplicitNothrowT, ExplicitT>, int, int>::value, "");
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static_assert(!std::is_nothrow_constructible<std::pair<ExplicitT, ExplicitNothrowT>, int, int>::value, "");
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static_assert( std::is_nothrow_constructible<std::pair<ExplicitNothrowT, ExplicitNothrowT>, int, int>::value, "");
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}
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{ // implicit noexcept test
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static_assert(!std::is_nothrow_constructible<std::pair<ImplicitT, ImplicitT>, int, int>::value, "");
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static_assert(!std::is_nothrow_constructible<std::pair<ImplicitNothrowT, ImplicitT>, int, int>::value, "");
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static_assert(!std::is_nothrow_constructible<std::pair<ImplicitT, ImplicitNothrowT>, int, int>::value, "");
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static_assert( std::is_nothrow_constructible<std::pair<ImplicitNothrowT, ImplicitNothrowT>, int, int>::value, "");
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}
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return 0;
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}
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