blob: 3410e7a9737ab8b24de9364d1a09ccee111afa56 [file] [log] [blame]
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include <cstddef>
#include <test_macros.h>
// UNSUPPORTED: c++03, c++11, c++14
// template <class IntegerType>
// constexpr byte& operator>>=(byte& b, IntegerType shift) noexcept;
// This function shall not participate in overload resolution unless
// is_integral_v<IntegerType> is true.
constexpr std::byte test(std::byte b) {
return b >>= 2;
}
int main(int, char**) {
std::byte b; // not constexpr, just used in noexcept check
constexpr std::byte b16{static_cast<std::byte>(16)};
constexpr std::byte b192{static_cast<std::byte>(192)};
static_assert(noexcept(b >>= 2), "" );
static_assert(std::to_integer<int>(test(b16)) == 4, "" );
static_assert(std::to_integer<int>(test(b192)) == 48, "" );
return 0;
}