80 lines
3.2 KiB
C++
80 lines
3.2 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// UNSUPPORTED: libcpp-no-concepts
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// template<class T>
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// concept floating_point = // see below
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#include <concepts>
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#include <type_traits>
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#include "arithmetic.h"
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template <typename T>
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constexpr bool CheckFloatingPointQualifiers() {
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constexpr bool result = std::floating_point<T>;
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static_assert(std::floating_point<const T> == result);
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static_assert(std::floating_point<volatile T> == result);
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static_assert(std::floating_point<const volatile T> == result);
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static_assert(!std::floating_point<T&>);
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static_assert(!std::floating_point<const T&>);
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static_assert(!std::floating_point<volatile T&>);
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static_assert(!std::floating_point<const volatile T&>);
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static_assert(!std::floating_point<T&&>);
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static_assert(!std::floating_point<const T&&>);
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static_assert(!std::floating_point<volatile T&&>);
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static_assert(!std::floating_point<const volatile T&&>);
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static_assert(!std::floating_point<T*>);
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static_assert(!std::floating_point<const T*>);
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static_assert(!std::floating_point<volatile T*>);
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static_assert(!std::floating_point<const volatile T*>);
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static_assert(!std::floating_point<T (*)()>);
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static_assert(!std::floating_point<T (&)()>);
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static_assert(!std::floating_point<T(&&)()>);
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return result;
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}
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// floating-point types
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static_assert(CheckFloatingPointQualifiers<float>());
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static_assert(CheckFloatingPointQualifiers<double>());
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static_assert(CheckFloatingPointQualifiers<long double>());
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// types that aren't floating-point
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static_assert(!CheckFloatingPointQualifiers<signed char>());
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static_assert(!CheckFloatingPointQualifiers<unsigned char>());
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static_assert(!CheckFloatingPointQualifiers<short>());
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static_assert(!CheckFloatingPointQualifiers<unsigned short>());
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static_assert(!CheckFloatingPointQualifiers<int>());
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static_assert(!CheckFloatingPointQualifiers<unsigned int>());
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static_assert(!CheckFloatingPointQualifiers<long>());
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static_assert(!CheckFloatingPointQualifiers<unsigned long>());
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static_assert(!CheckFloatingPointQualifiers<long long>());
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static_assert(!CheckFloatingPointQualifiers<unsigned long long>());
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static_assert(!CheckFloatingPointQualifiers<wchar_t>());
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static_assert(!CheckFloatingPointQualifiers<bool>());
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static_assert(!CheckFloatingPointQualifiers<char>());
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static_assert(!CheckFloatingPointQualifiers<char8_t>());
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static_assert(!CheckFloatingPointQualifiers<char16_t>());
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static_assert(!CheckFloatingPointQualifiers<char32_t>());
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static_assert(!std::floating_point<void>);
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static_assert(!CheckFloatingPointQualifiers<ClassicEnum>());
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static_assert(!CheckFloatingPointQualifiers<ScopedEnum>());
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static_assert(!CheckFloatingPointQualifiers<EmptyStruct>());
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static_assert(!CheckFloatingPointQualifiers<int EmptyStruct::*>());
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static_assert(!CheckFloatingPointQualifiers<int (EmptyStruct::*)()>());
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int main(int, char**) { return 0; }
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