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37 lines
1021 B
C++
37 lines
1021 B
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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// <new>
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// template <class T> constexpr T* launder(T* p) noexcept;
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// UNSUPPORTED: c++98, c++03, c++11, c++14
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#include <new>
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#include <cassert>
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#include "test_macros.h"
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constexpr int gi = 5;
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constexpr float gf = 8.f;
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int main(int, char**) {
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static_assert(std::launder(&gi) == &gi, "" );
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static_assert(std::launder(&gf) == &gf, "" );
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const int *i = &gi;
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const float *f = &gf;
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static_assert(std::is_same<decltype(i), decltype(std::launder(i))>::value, "");
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static_assert(std::is_same<decltype(f), decltype(std::launder(f))>::value, "");
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assert(std::launder(i) == i);
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assert(std::launder(f) == f);
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return 0;
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}
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