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//===----------------------------------------------------------------------===//
//
// 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 <cassert>
#include <new>
#include <type_traits>
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;
}
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