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-exception
6//
7//===----------------------------------------------------------------------===//
8
9// type_traits
10
11// has_virtual_destructor
12
13#include <type_traits>
14
15#include "test_macros.h"
16
17template <class T>
18void test_has_virtual_destructor()
19{
20 static_assert( std::has_virtual_destructor<T>::value, "");
21 static_assert( std::has_virtual_destructor<const T>::value, "");
22 static_assert( std::has_virtual_destructor<volatile T>::value, "");
23 static_assert( std::has_virtual_destructor<const volatile T>::value, "");
24#if TEST_STD_VER > 14
25 static_assert( std::has_virtual_destructor_v<T>, "");
26 static_assert( std::has_virtual_destructor_v<const T>, "");
27 static_assert( std::has_virtual_destructor_v<volatile T>, "");
28 static_assert( std::has_virtual_destructor_v<const volatile T>, "");
29#endif
30}
31
32template <class T>
33void test_has_not_virtual_destructor()
34{
35 static_assert(!std::has_virtual_destructor<T>::value, "");
36 static_assert(!std::has_virtual_destructor<const T>::value, "");
37 static_assert(!std::has_virtual_destructor<volatile T>::value, "");
38 static_assert(!std::has_virtual_destructor<const volatile T>::value, "");
39#if TEST_STD_VER > 14
40 static_assert(!std::has_virtual_destructor_v<T>, "");
41 static_assert(!std::has_virtual_destructor_v<const T>, "");
42 static_assert(!std::has_virtual_destructor_v<volatile T>, "");
43 static_assert(!std::has_virtual_destructor_v<const volatile T>, "");
44#endif
45}
46
47class Empty
48{
49};
50
51class NotEmpty
52{
53 virtual ~NotEmpty();
54};
55
56union Union {};
57
58struct bit_zero
59{
60 int : 0;
61};
62
63class Abstract
64{
65 virtual ~Abstract() = 0;
66};
67
68struct A
69{
70 ~A();
71};
72
73int main(int, char**)
74{
75 test_has_not_virtual_destructor<void>();
76 test_has_not_virtual_destructor<A>();
77 test_has_not_virtual_destructor<int&>();
78 test_has_not_virtual_destructor<Union>();
79 test_has_not_virtual_destructor<Empty>();
80 test_has_not_virtual_destructor<int>();
81 test_has_not_virtual_destructor<double>();
82 test_has_not_virtual_destructor<int*>();
83 test_has_not_virtual_destructor<const int*>();
84 test_has_not_virtual_destructor<char[3]>();
85 test_has_not_virtual_destructor<char[]>();
86 test_has_not_virtual_destructor<bit_zero>();
87
88 test_has_virtual_destructor<Abstract>();
89 test_has_virtual_destructor<NotEmpty>();
90
91 return 0;
92}
93

source code of libcxx/test/std/utilities/meta/meta.unary/meta.unary.prop/has_virtual_destructor.pass.cpp