107 lines · cpp
1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9// type_traits10 11// is_member_pointer12 13#include <type_traits>14#include <cstddef> // for std::nullptr_t15#include "test_macros.h"16 17template <class T>18void test_is_member_pointer()19{20 static_assert( std::is_member_pointer<T>::value, "");21 static_assert( std::is_member_pointer<const T>::value, "");22 static_assert( std::is_member_pointer<volatile T>::value, "");23 static_assert( std::is_member_pointer<const volatile T>::value, "");24#if TEST_STD_VER > 1425 static_assert( std::is_member_pointer_v<T>, "");26 static_assert( std::is_member_pointer_v<const T>, "");27 static_assert( std::is_member_pointer_v<volatile T>, "");28 static_assert( std::is_member_pointer_v<const volatile T>, "");29#endif30}31 32template <class T>33void test_is_not_member_pointer()34{35 static_assert(!std::is_member_pointer<T>::value, "");36 static_assert(!std::is_member_pointer<const T>::value, "");37 static_assert(!std::is_member_pointer<volatile T>::value, "");38 static_assert(!std::is_member_pointer<const volatile T>::value, "");39#if TEST_STD_VER > 1440 static_assert(!std::is_member_pointer_v<T>, "");41 static_assert(!std::is_member_pointer_v<const T>, "");42 static_assert(!std::is_member_pointer_v<volatile T>, "");43 static_assert(!std::is_member_pointer_v<const volatile T>, "");44#endif45}46 47class incomplete_type;48 49class Empty50{51};52 53class NotEmpty54{55 virtual ~NotEmpty();56};57 58union Union {};59 60struct bit_zero61{62 int : 0;63};64 65class Abstract66{67 virtual ~Abstract() = 0;68};69 70enum Enum {zero, one};71 72typedef void (*FunctionPtr)();73 74 75int main(int, char**)76{77// Arithmetic types (3.9.1), enumeration types, pointer types, pointer to member types (3.9.2),78// std::nullptr_t, and cv-qualified versions of these types (3.9.3)79// are collectively called scalar types.80 81 test_is_member_pointer<int Empty::*>();82 test_is_member_pointer<void (Empty::*)(int)>();83 84 test_is_not_member_pointer<std::nullptr_t>();85 test_is_not_member_pointer<void>();86 test_is_not_member_pointer<void *>();87 test_is_not_member_pointer<int>();88 test_is_not_member_pointer<int*>();89 test_is_not_member_pointer<const int*>();90 test_is_not_member_pointer<int&>();91 test_is_not_member_pointer<int&&>();92 test_is_not_member_pointer<double>();93 test_is_not_member_pointer<char[3]>();94 test_is_not_member_pointer<char[]>();95 test_is_not_member_pointer<Union>();96 test_is_not_member_pointer<Empty>();97 test_is_not_member_pointer<incomplete_type>();98 test_is_not_member_pointer<bit_zero>();99 test_is_not_member_pointer<NotEmpty>();100 test_is_not_member_pointer<Abstract>();101 test_is_not_member_pointer<int(int)>();102 test_is_not_member_pointer<Enum>();103 test_is_not_member_pointer<FunctionPtr>();104 105 return 0;106}107