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
17 template <class T>
test_has_virtual_destructor()18 void 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
32 template <class T>
test_has_not_virtual_destructor()33 void 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
47 class Empty
48 {
49 };
50
51 class NotEmpty
52 {
53 virtual ~NotEmpty();
54 };
55
56 union Union {};
57
58 struct bit_zero
59 {
60 int : 0;
61 };
62
63 class Abstract
64 {
65 virtual ~Abstract() = 0;
66 };
67
68 struct A
69 {
70 ~A();
71 };
72
main(int,char **)73 int 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