has_virtual_destructor.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// type_traits
11
12// has_virtual_destructor
13
14#include <type_traits>
15
16template <class T>
17void test_has_virtual_destructor()
18{
19    static_assert( std::has_virtual_destructor<T>::value, "");
20    static_assert( std::has_virtual_destructor<const T>::value, "");
21    static_assert( std::has_virtual_destructor<volatile T>::value, "");
22    static_assert( std::has_virtual_destructor<const volatile T>::value, "");
23}
24
25template <class T>
26void test_has_not_virtual_destructor()
27{
28    static_assert(!std::has_virtual_destructor<T>::value, "");
29    static_assert(!std::has_virtual_destructor<const T>::value, "");
30    static_assert(!std::has_virtual_destructor<volatile T>::value, "");
31    static_assert(!std::has_virtual_destructor<const volatile T>::value, "");
32}
33
34class Empty
35{
36};
37
38class NotEmpty
39{
40    virtual ~NotEmpty();
41};
42
43union Union {};
44
45struct bit_zero
46{
47    int :  0;
48};
49
50class Abstract
51{
52    virtual ~Abstract() = 0;
53};
54
55struct A
56{
57    ~A();
58};
59
60int main()
61{
62    test_has_not_virtual_destructor<void>();
63    test_has_not_virtual_destructor<A>();
64    test_has_not_virtual_destructor<int&>();
65    test_has_not_virtual_destructor<Union>();
66    test_has_not_virtual_destructor<Empty>();
67    test_has_not_virtual_destructor<int>();
68    test_has_not_virtual_destructor<double>();
69    test_has_not_virtual_destructor<int*>();
70    test_has_not_virtual_destructor<const int*>();
71    test_has_not_virtual_destructor<char[3]>();
72    test_has_not_virtual_destructor<char[3]>();
73    test_has_not_virtual_destructor<bit_zero>();
74
75    test_has_virtual_destructor<Abstract>();
76    test_has_virtual_destructor<NotEmpty>();
77}
78