64 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// UNSUPPORTED: c++03, c++1110// type_traits11 12// is_final13 14#include <type_traits>15#include "test_macros.h"16 17struct P final { };18union U1 { };19union U2 final { };20 21template <class T>22void test_is_final()23{24 static_assert( std::is_final<T>::value, "");25 static_assert( std::is_final<const T>::value, "");26 static_assert( std::is_final<volatile T>::value, "");27 static_assert( std::is_final<const volatile T>::value, "");28#if TEST_STD_VER > 1429 static_assert( std::is_final_v<T>, "");30 static_assert( std::is_final_v<const T>, "");31 static_assert( std::is_final_v<volatile T>, "");32 static_assert( std::is_final_v<const volatile T>, "");33#endif34}35 36template <class T>37void test_is_not_final()38{39 static_assert(!std::is_final<T>::value, "");40 static_assert(!std::is_final<const T>::value, "");41 static_assert(!std::is_final<volatile T>::value, "");42 static_assert(!std::is_final<const volatile T>::value, "");43#if TEST_STD_VER > 1444 static_assert(!std::is_final_v<T>, "");45 static_assert(!std::is_final_v<const T>, "");46 static_assert(!std::is_final_v<volatile T>, "");47 static_assert(!std::is_final_v<const volatile T>, "");48#endif49}50 51int main(int, char**)52{53 test_is_not_final<int>();54 test_is_not_final<int*>();55 test_is_final <P>();56 test_is_not_final<P*>();57 test_is_not_final<U1>();58 test_is_not_final<U1*>();59 test_is_final <U2>();60 test_is_not_final<U2*>();61 62 return 0;63}64