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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
// The following compilers don't like "std::byte b1{1}"
// UNSUPPORTED: clang-3.5, clang-3.6, clang-3.7, clang-3.8
// UNSUPPORTED: apple-clang-6, apple-clang-7, apple-clang-8.0
// template <class IntegerType>
// constexpr byte operator <<(byte b, IntegerType shift) noexcept;
// These functions shall not participate in overload resolution unless
// is_integral_v<IntegerType> is true.
int main () {
constexpr std::byte b1{1};
constexpr std::byte b3{3};
static_assert(noexcept(b3 << 2), "" );
static_assert(std::to_integer<int>(b1 << 1) == 2, "");
static_assert(std::to_integer<int>(b1 << 2) == 4, "");
static_assert(std::to_integer<int>(b3 << 4) == 48, "");
static_assert(std::to_integer<int>(b3 << 6) == 192, "");
}
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