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_trivially_default_constructible
13
14#include <type_traits>
15
16template <class T>
17void test_is_trivially_default_constructible()
18{
19    static_assert( std::is_trivially_default_constructible<T>::value, "");
20    static_assert( std::is_trivially_default_constructible<const T>::value, "");
21    static_assert( std::is_trivially_default_constructible<volatile T>::value, "");
22    static_assert( std::is_trivially_default_constructible<const volatile T>::value, "");
23}
24
25template <class T>
26void test_has_not_trivial_default_constructor()
27{
28    static_assert(!std::is_trivially_default_constructible<T>::value, "");
29    static_assert(!std::is_trivially_default_constructible<const T>::value, "");
30    static_assert(!std::is_trivially_default_constructible<volatile T>::value, "");
31    static_assert(!std::is_trivially_default_constructible<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_trivial_default_constructor<void>();
63    test_has_not_trivial_default_constructor<int&>();
64    test_has_not_trivial_default_constructor<A>();
65    test_has_not_trivial_default_constructor<Abstract>();
66    test_has_not_trivial_default_constructor<NotEmpty>();
67
68    test_is_trivially_default_constructible<Union>();
69    test_is_trivially_default_constructible<Empty>();
70    test_is_trivially_default_constructible<int>();
71    test_is_trivially_default_constructible<double>();
72    test_is_trivially_default_constructible<int*>();
73    test_is_trivially_default_constructible<const int*>();
74    test_is_trivially_default_constructible<char[3]>();
75    test_is_trivially_default_constructible<bit_zero>();
76}
77