| //===----------------------------------------------------------------------===// |
| // |
| // 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 integral = // see below |
| |
| #include <concepts> |
| #include <type_traits> |
| |
| #include "arithmetic.h" |
| #include "test_macros.h" |
| |
| template <typename T> |
| constexpr bool CheckIntegralQualifiers() { |
| constexpr bool result = std::integral<T>; |
| static_assert(std::integral<const T> == result); |
| static_assert(std::integral<volatile T> == result); |
| static_assert(std::integral<const volatile T> == result); |
| |
| static_assert(!std::integral<T&>); |
| static_assert(!std::integral<const T&>); |
| static_assert(!std::integral<volatile T&>); |
| static_assert(!std::integral<const volatile T&>); |
| |
| static_assert(!std::integral<T&&>); |
| static_assert(!std::integral<const T&&>); |
| static_assert(!std::integral<volatile T&&>); |
| static_assert(!std::integral<const volatile T&&>); |
| |
| static_assert(!std::integral<T*>); |
| static_assert(!std::integral<const T*>); |
| static_assert(!std::integral<volatile T*>); |
| static_assert(!std::integral<const volatile T*>); |
| |
| static_assert(!std::integral<T (*)()>); |
| static_assert(!std::integral<T (&)()>); |
| static_assert(!std::integral<T(&&)()>); |
| |
| return result; |
| } |
| |
| // standard signed and unsigned integers |
| static_assert(CheckIntegralQualifiers<signed char>()); |
| static_assert(CheckIntegralQualifiers<unsigned char>()); |
| static_assert(CheckIntegralQualifiers<short>()); |
| static_assert(CheckIntegralQualifiers<unsigned short>()); |
| static_assert(CheckIntegralQualifiers<int>()); |
| static_assert(CheckIntegralQualifiers<unsigned int>()); |
| static_assert(CheckIntegralQualifiers<long>()); |
| static_assert(CheckIntegralQualifiers<unsigned long>()); |
| static_assert(CheckIntegralQualifiers<long long>()); |
| static_assert(CheckIntegralQualifiers<unsigned long long>()); |
| |
| // extended integers |
| #ifndef TEST_HAS_NO_INT128 |
| static_assert(CheckIntegralQualifiers<__int128_t>()); |
| static_assert(CheckIntegralQualifiers<__uint128_t>()); |
| #endif |
| |
| // bool and char types are also integral |
| static_assert(CheckIntegralQualifiers<wchar_t>()); |
| static_assert(CheckIntegralQualifiers<bool>()); |
| static_assert(CheckIntegralQualifiers<char>()); |
| static_assert(CheckIntegralQualifiers<char8_t>()); |
| static_assert(CheckIntegralQualifiers<char16_t>()); |
| static_assert(CheckIntegralQualifiers<char32_t>()); |
| |
| // types that aren't integral |
| static_assert(!std::integral<void>); |
| static_assert(!CheckIntegralQualifiers<float>()); |
| static_assert(!CheckIntegralQualifiers<double>()); |
| static_assert(!CheckIntegralQualifiers<long double>()); |
| |
| static_assert(!CheckIntegralQualifiers<ClassicEnum>()); |
| |
| static_assert(!CheckIntegralQualifiers<ScopedEnum>()); |
| |
| static_assert(!CheckIntegralQualifiers<EmptyStruct>()); |
| static_assert(!CheckIntegralQualifiers<int EmptyStruct::*>()); |
| static_assert(!CheckIntegralQualifiers<int (EmptyStruct::*)()>()); |
| |
| static_assert(CheckSubsumption(0)); |
| static_assert(CheckSubsumption(0U)); |
| |
| int main(int, char**) { return 0; } |