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