| //===----------------------------------------------------------------------===// |
| // |
| // 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)) == 0, ""); |
| static_assert(std::to_integer<int>(test(b1, b9)) == 1, ""); |
| static_assert(std::to_integer<int>(test(b8, b9)) == 8, ""); |
| |
| static_assert(std::to_integer<int>(test(b8, b1)) == 0, ""); |
| static_assert(std::to_integer<int>(test(b9, b1)) == 1, ""); |
| static_assert(std::to_integer<int>(test(b9, b8)) == 8, ""); |
| } |