| //===----------------------------------------------------------------------===// |
| // |
| // 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // UNSUPPORTED: c++03, c++11, c++14, c++17 |
| |
| // template<class T> |
| // concept floating_point = // see below |
| |
| #include <concepts> |
| #include <type_traits> |
| |
| #include "arithmetic.h" |
| |
| template <typename T> |
| constexpr bool CheckFloatingPointQualifiers() { |
| constexpr bool result = std::floating_point<T>; |
| static_assert(std::floating_point<const T> == result); |
| static_assert(std::floating_point<volatile T> == result); |
| static_assert(std::floating_point<const volatile T> == result); |
| |
| static_assert(!std::floating_point<T&>); |
| static_assert(!std::floating_point<const T&>); |
| static_assert(!std::floating_point<volatile T&>); |
| static_assert(!std::floating_point<const volatile T&>); |
| |
| static_assert(!std::floating_point<T&&>); |
| static_assert(!std::floating_point<const T&&>); |
| static_assert(!std::floating_point<volatile T&&>); |
| static_assert(!std::floating_point<const volatile T&&>); |
| |
| static_assert(!std::floating_point<T*>); |
| static_assert(!std::floating_point<const T*>); |
| static_assert(!std::floating_point<volatile T*>); |
| static_assert(!std::floating_point<const volatile T*>); |
| |
| static_assert(!std::floating_point<T (*)()>); |
| static_assert(!std::floating_point<T (&)()>); |
| static_assert(!std::floating_point<T(&&)()>); |
| |
| return result; |
| } |
| |
| // floating-point types |
| static_assert(CheckFloatingPointQualifiers<float>()); |
| static_assert(CheckFloatingPointQualifiers<double>()); |
| static_assert(CheckFloatingPointQualifiers<long double>()); |
| |
| // types that aren't floating-point |
| static_assert(!CheckFloatingPointQualifiers<signed char>()); |
| static_assert(!CheckFloatingPointQualifiers<unsigned char>()); |
| static_assert(!CheckFloatingPointQualifiers<short>()); |
| static_assert(!CheckFloatingPointQualifiers<unsigned short>()); |
| static_assert(!CheckFloatingPointQualifiers<int>()); |
| static_assert(!CheckFloatingPointQualifiers<unsigned int>()); |
| static_assert(!CheckFloatingPointQualifiers<long>()); |
| static_assert(!CheckFloatingPointQualifiers<unsigned long>()); |
| static_assert(!CheckFloatingPointQualifiers<long long>()); |
| static_assert(!CheckFloatingPointQualifiers<unsigned long long>()); |
| static_assert(!CheckFloatingPointQualifiers<wchar_t>()); |
| static_assert(!CheckFloatingPointQualifiers<bool>()); |
| static_assert(!CheckFloatingPointQualifiers<char>()); |
| static_assert(!CheckFloatingPointQualifiers<char8_t>()); |
| static_assert(!CheckFloatingPointQualifiers<char16_t>()); |
| static_assert(!CheckFloatingPointQualifiers<char32_t>()); |
| static_assert(!std::floating_point<void>); |
| |
| static_assert(!CheckFloatingPointQualifiers<ClassicEnum>()); |
| static_assert(!CheckFloatingPointQualifiers<ScopedEnum>()); |
| static_assert(!CheckFloatingPointQualifiers<EmptyStruct>()); |
| static_assert(!CheckFloatingPointQualifiers<int EmptyStruct::*>()); |
| static_assert(!CheckFloatingPointQualifiers<int (EmptyStruct::*)()>()); |
| |
| int main(int, char**) { return 0; } |