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//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// type_traits
// is_abstract
#include <type_traits>
#include "test_macros.h"
template <class T>
void test_is_abstract()
{
static_assert( std::is_abstract<T>::value, "");
static_assert( std::is_abstract<const T>::value, "");
static_assert( std::is_abstract<volatile T>::value, "");
static_assert( std::is_abstract<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert( std::is_abstract_v<T>, "");
static_assert( std::is_abstract_v<const T>, "");
static_assert( std::is_abstract_v<volatile T>, "");
static_assert( std::is_abstract_v<const volatile T>, "");
#endif
}
template <class T>
void test_is_not_abstract()
{
static_assert(!std::is_abstract<T>::value, "");
static_assert(!std::is_abstract<const T>::value, "");
static_assert(!std::is_abstract<volatile T>::value, "");
static_assert(!std::is_abstract<const volatile T>::value, "");
#if TEST_STD_VER > 14
static_assert(!std::is_abstract_v<T>, "");
static_assert(!std::is_abstract_v<const T>, "");
static_assert(!std::is_abstract_v<volatile T>, "");
static_assert(!std::is_abstract_v<const volatile T>, "");
#endif
}
class Empty
{
};
class NotEmpty
{
virtual ~NotEmpty();
};
union Union {};
struct bit_zero
{
int : 0;
};
class Abstract
{
virtual ~Abstract() = 0;
};
template <class>
struct AbstractTemplate {
virtual void test() = 0;
};
template <>
struct AbstractTemplate<double> {};
int main(int, char**)
{
test_is_not_abstract<void>();
test_is_not_abstract<int&>();
test_is_not_abstract<int>();
test_is_not_abstract<double>();
test_is_not_abstract<int*>();
test_is_not_abstract<const int*>();
test_is_not_abstract<char[3]>();
test_is_not_abstract<char[]>();
test_is_not_abstract<Union>();
test_is_not_abstract<Empty>();
test_is_not_abstract<bit_zero>();
test_is_not_abstract<NotEmpty>();
test_is_abstract<Abstract>();
test_is_abstract<AbstractTemplate<int> >();
test_is_not_abstract<AbstractTemplate<double> >();
return 0;
}
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