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libcxx/test/std/utilities/meta/meta.unary/meta.unary.cat/is_member_pointer.pass.cpp

107 lines
3.1 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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.
//
//===----------------------------------------------------------------------===//
// type_traits
// is_member_pointer
#include <type_traits>
#include <cstddef> // for std::nullptr_t
#include "test_macros.h"
template <class T>
void test_is_member_pointer()
{
static_assert( std::is_member_pointer<T>::value, "");
static_assert( std::is_member_pointer<const T>::value, "");
static_assert( std::is_member_pointer<volatile T>::value, "");
static_assert( std::is_member_pointer<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert( std::is_member_pointer_v<T>, "");
static_assert( std::is_member_pointer_v<const T>, "");
static_assert( std::is_member_pointer_v<volatile T>, "");
static_assert( std::is_member_pointer_v<const volatile T>, "");
#endif
}
template <class T>
void test_is_not_member_pointer()
{
static_assert(!std::is_member_pointer<T>::value, "");
static_assert(!std::is_member_pointer<const T>::value, "");
static_assert(!std::is_member_pointer<volatile T>::value, "");
static_assert(!std::is_member_pointer<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert(!std::is_member_pointer_v<T>, "");
static_assert(!std::is_member_pointer_v<const T>, "");
static_assert(!std::is_member_pointer_v<volatile T>, "");
static_assert(!std::is_member_pointer_v<const volatile T>, "");
#endif
}
class Empty
{
};
class NotEmpty
{
virtual ~NotEmpty();
};
union Union {};
struct bit_zero
{
int : 0;
};
class Abstract
{
virtual ~Abstract() = 0;
};
enum Enum {zero, one};
struct incomplete_type;
typedef void (*FunctionPtr)();
int main()
{
test_is_member_pointer<int Abstract::*>();
test_is_member_pointer<double NotEmpty::*>();
test_is_member_pointer<FunctionPtr Empty::*>();
test_is_member_pointer<void (Empty::*)()>();
test_is_not_member_pointer<std::nullptr_t>();
test_is_not_member_pointer<void>();
test_is_not_member_pointer<int>();
test_is_not_member_pointer<int&>();
test_is_not_member_pointer<int&&>();
test_is_not_member_pointer<int*>();
test_is_not_member_pointer<double>();
test_is_not_member_pointer<const int*>();
test_is_not_member_pointer<char[3]>();
test_is_not_member_pointer<char[]>();
test_is_not_member_pointer<Union>();
test_is_not_member_pointer<Enum>();
test_is_not_member_pointer<FunctionPtr>();
test_is_not_member_pointer<Empty>();
test_is_not_member_pointer<bit_zero>();
test_is_not_member_pointer<NotEmpty>();
test_is_not_member_pointer<Abstract>();
test_is_not_member_pointer<incomplete_type>();
#if TEST_STD_VER >= 11
test_is_member_pointer<int (Empty::*)(int, ...) const>();
test_is_member_pointer<int (Empty::*)(int, long, long) const noexcept>();
test_is_member_pointer<int (Empty::*)() & noexcept>();
#endif
}