| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| |
| // 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 () { |
| constexpr std::byte b1{static_cast<std::byte>(1)}; |
| constexpr std::byte b3{static_cast<std::byte>(3)}; |
| |
| static_assert(noexcept(std::to_integer<int>(b1)), "" ); |
| static_assert(std::is_same<int, decltype(std::to_integer<int>(b1))>::value, "" ); |
| static_assert(std::is_same<long, decltype(std::to_integer<long>(b1))>::value, "" ); |
| static_assert(std::is_same<unsigned short, decltype(std::to_integer<unsigned short>(b1))>::value, "" ); |
| |
| static_assert(std::to_integer<int>(b1) == 1, ""); |
| static_assert(std::to_integer<int>(b3) == 3, ""); |
| } |
