1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
11 #include <test_macros.h>
13 // UNSUPPORTED: c++98, c++03, c++11, c++14
14 // The following compilers don't like "std::byte b1{1}"
15 // UNSUPPORTED: clang-3.5, clang-3.6, clang-3.7, clang-3.8
16 // UNSUPPORTED: apple-clang-6, apple-clang-7, apple-clang-8.0
18 // constexpr byte& operator |=(byte l, byte r) noexcept;
21 constexpr std::byte test(std::byte b1, std::byte b2) {
28 std::byte b; // not constexpr, just used in noexcept check
29 constexpr std::byte b1{1};
30 constexpr std::byte b2{2};
31 constexpr std::byte b8{8};
33 static_assert(noexcept(b |= b), "" );
35 static_assert(std::to_integer<int>(test(b1, b2)) == 3, "");
36 static_assert(std::to_integer<int>(test(b1, b8)) == 9, "");
37 static_assert(std::to_integer<int>(test(b2, b8)) == 10, "");
39 static_assert(std::to_integer<int>(test(b2, b1)) == 3, "");
40 static_assert(std::to_integer<int>(test(b8, b1)) == 9, "");
41 static_assert(std::to_integer<int>(test(b8, b2)) == 10, "");