is_abstract.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// is_abstract
13
14#include <type_traits>
15
16template <class T>
17void test_is_abstract()
18{
19    static_assert( std::is_abstract<T>::value, "");
20    static_assert( std::is_abstract<const T>::value, "");
21    static_assert( std::is_abstract<volatile T>::value, "");
22    static_assert( std::is_abstract<const volatile T>::value, "");
23}
24
25template <class T>
26void test_is_not_abstract()
27{
28    static_assert(!std::is_abstract<T>::value, "");
29    static_assert(!std::is_abstract<const T>::value, "");
30    static_assert(!std::is_abstract<volatile T>::value, "");
31    static_assert(!std::is_abstract<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
55int main()
56{
57    test_is_not_abstract<void>();
58    test_is_not_abstract<int&>();
59    test_is_not_abstract<int>();
60    test_is_not_abstract<double>();
61    test_is_not_abstract<int*>();
62    test_is_not_abstract<const int*>();
63    test_is_not_abstract<char[3]>();
64    test_is_not_abstract<char[3]>();
65    test_is_not_abstract<Union>();
66    test_is_not_abstract<Empty>();
67    test_is_not_abstract<bit_zero>();
68    test_is_not_abstract<NotEmpty>();
69
70    test_is_abstract<Abstract>();
71}
72