test/std/utilities/meta/meta.unary/meta.unary.prop/is_polymorphic.pass.cpp

//===----------------------------------------------------------------------===//
//
// 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_polymorphic

#include <type_traits>
#include "test_macros.h"

template <class T>
void test_is_polymorphic()
{
    static_assert( std::is_polymorphic<T>::value, "");
    static_assert( std::is_polymorphic<const T>::value, "");
    static_assert( std::is_polymorphic<volatile T>::value, "");
    static_assert( std::is_polymorphic<const volatile T>::value, "");
#if TEST_STD_VER > 14
    static_assert( std::is_polymorphic_v<T>, "");
    static_assert( std::is_polymorphic_v<const T>, "");
    static_assert( std::is_polymorphic_v<volatile T>, "");
    static_assert( std::is_polymorphic_v<const volatile T>, "");
#endif
}

template <class T>
void test_is_not_polymorphic()
{
    static_assert(!std::is_polymorphic<T>::value, "");
    static_assert(!std::is_polymorphic<const T>::value, "");
    static_assert(!std::is_polymorphic<volatile T>::value, "");
    static_assert(!std::is_polymorphic<const volatile T>::value, "");
#if TEST_STD_VER > 14
    static_assert(!std::is_polymorphic_v<T>, "");
    static_assert(!std::is_polymorphic_v<const T>, "");
    static_assert(!std::is_polymorphic_v<volatile T>, "");
    static_assert(!std::is_polymorphic_v<const volatile T>, "");
#endif
}

class Empty
{
};

class NotEmpty
{
    virtual ~NotEmpty();
};

union Union {};

struct bit_zero
{
    int :  0;
};

class Abstract
{
    virtual ~Abstract() = 0;
};

#if TEST_STD_VER >= 11
class Final final {
};
#else
class Final {
};
#endif

int main(int, char**)
{
    test_is_not_polymorphic<void>();
    test_is_not_polymorphic<int&>();
    test_is_not_polymorphic<int>();
    test_is_not_polymorphic<double>();
    test_is_not_polymorphic<int*>();
    test_is_not_polymorphic<const int*>();
    test_is_not_polymorphic<char[3]>();
    test_is_not_polymorphic<char[]>();
    test_is_not_polymorphic<Union>();
    test_is_not_polymorphic<Empty>();
    test_is_not_polymorphic<bit_zero>();
    test_is_not_polymorphic<Final>();
    test_is_not_polymorphic<NotEmpty&>();
    test_is_not_polymorphic<Abstract&>();

    test_is_polymorphic<NotEmpty>();
    test_is_polymorphic<Abstract>();

  return 0;
}