llvm/libcxx/test/std/language.support/support.types/byteops/to_integer.compile.fail.cpp

//===----------------------------------------------------------------------===//
//
// 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 IntegerType to_integer(byte b) noexcept;
// This function shall not participate in overload resolution unless
//   is_integral_v<IntegerType> is true.

int main(int, char**) {
    constexpr std::byte b1{static_cast<std::byte>(1)};
    auto f = std::to_integer<float>(b1);

  return 0;
}