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_compound
13
14#include <type_traits>
15#include <cstddef>         // for std::nullptr_t
16#include "test_macros.h"
17
18template <class T>
19void test_is_compound()
20{
21    static_assert( std::is_compound<T>::value, "");
22    static_assert( std::is_compound<const T>::value, "");
23    static_assert( std::is_compound<volatile T>::value, "");
24    static_assert( std::is_compound<const volatile T>::value, "");
25#if TEST_STD_VER > 14
26    static_assert( std::is_compound_v<T>, "");
27    static_assert( std::is_compound_v<const T>, "");
28    static_assert( std::is_compound_v<volatile T>, "");
29    static_assert( std::is_compound_v<const volatile T>, "");
30#endif
31}
32
33template <class T>
34void test_is_not_compound()
35{
36    static_assert(!std::is_compound<T>::value, "");
37    static_assert(!std::is_compound<const T>::value, "");
38    static_assert(!std::is_compound<volatile T>::value, "");
39    static_assert(!std::is_compound<const volatile T>::value, "");
40#if TEST_STD_VER > 14
41    static_assert(!std::is_compound_v<T>, "");
42    static_assert(!std::is_compound_v<const T>, "");
43    static_assert(!std::is_compound_v<volatile T>, "");
44    static_assert(!std::is_compound_v<const volatile T>, "");
45#endif
46}
47
48class incomplete_type;
49
50class Empty
51{
52};
53
54class NotEmpty
55{
56    virtual ~NotEmpty();
57};
58
59union Union {};
60
61struct bit_zero
62{
63    int :  0;
64};
65
66class Abstract
67{
68    virtual ~Abstract() = 0;
69};
70
71enum Enum {zero, one};
72
73typedef void (*FunctionPtr)();
74
75
76int main()
77{
78    test_is_compound<char[3]>();
79    test_is_compound<char[]>();
80    test_is_compound<void *>();
81    test_is_compound<FunctionPtr>();
82    test_is_compound<int&>();
83    test_is_compound<int&&>();
84    test_is_compound<Union>();
85    test_is_compound<Empty>();
86    test_is_compound<incomplete_type>();
87    test_is_compound<bit_zero>();
88    test_is_compound<int*>();
89    test_is_compound<const int*>();
90    test_is_compound<Enum>();
91    test_is_compound<NotEmpty>();
92    test_is_compound<Abstract>();
93
94    test_is_not_compound<std::nullptr_t>();
95    test_is_not_compound<void>();
96    test_is_not_compound<int>();
97    test_is_not_compound<double>();
98}
99