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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include <cstddef>
#include <test_macros.h>
// UNSUPPORTED: c++98, c++03, c++11, c++14
// constexpr byte& operator ^=(byte l, byte r) noexcept;
constexpr std::byte test(std::byte b1, std::byte b2) {
std::byte bret = b1;
return bret ^= b2;
}
int main () {
std::byte b; // not constexpr, just used in noexcept check
constexpr std::byte b1{static_cast<std::byte>(1)};
constexpr std::byte b8{static_cast<std::byte>(8)};
constexpr std::byte b9{static_cast<std::byte>(9)};
static_assert(noexcept(b ^= b), "" );
static_assert(std::to_integer<int>(test(b1, b8)) == 9, "");
static_assert(std::to_integer<int>(test(b1, b9)) == 8, "");
static_assert(std::to_integer<int>(test(b8, b9)) == 1, "");
static_assert(std::to_integer<int>(test(b8, b1)) == 9, "");
static_assert(std::to_integer<int>(test(b9, b1)) == 8, "");
static_assert(std::to_integer<int>(test(b9, b8)) == 1, "");
}
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