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 // is_destructible
13 
14 #include <type_traits>
15 
16 template <class T>
17 void test_is_destructible()
18 {
19     static_assert( std::is_destructible<T>::value, "");
20     static_assert( std::is_destructible<const T>::value, "");
21     static_assert( std::is_destructible<volatile T>::value, "");
22     static_assert( std::is_destructible<const volatile T>::value, "");
23 }
24 
25 template <class T>
26 void test_is_not_destructible()
27 {
28     static_assert(!std::is_destructible<T>::value, "");
29     static_assert(!std::is_destructible<const T>::value, "");
30     static_assert(!std::is_destructible<volatile T>::value, "");
31     static_assert(!std::is_destructible<const volatile T>::value, "");
32 }
33 
34 class Empty
35 {
36 };
37 
38 class NotEmpty
39 {
40     virtual ~NotEmpty();
41 };
42 
43 union Union {};
44 
45 struct bit_zero
46 {
47     int :  0;
48 };
49 
50 class Abstract
51 {
52     virtual ~Abstract() = 0;
53 };
54 
55 struct A
56 {
57     ~A();
58 };
59 
60 typedef void (Function) ();
61 
62 int main()
63 {
64     test_is_destructible<A>();
65     test_is_destructible<int&>();
66     test_is_destructible<Union>();
67     test_is_destructible<Empty>();
68     test_is_destructible<int>();
69     test_is_destructible<double>();
70     test_is_destructible<int*>();
71     test_is_destructible<const int*>();
72     test_is_destructible<char[3]>();
73     test_is_destructible<bit_zero>();
74     test_is_destructible<int[3]>();
75 
76     test_is_not_destructible<int[]>();
77     test_is_not_destructible<void>();
78     test_is_not_destructible<Abstract>();
79 #if __has_feature(cxx_access_control_sfinae)
80     test_is_not_destructible<NotEmpty>();
81 #endif
82     test_is_not_destructible<Function>();
83 }
84