1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // type_traits
10
11 // is_compound
12
13 #include <type_traits>
14 #include <cstddef> // for std::nullptr_t
15 #include "test_macros.h"
16
17 template <class T>
test_is_compound()18 void test_is_compound()
19 {
20 static_assert( std::is_compound<T>::value, "");
21 static_assert( std::is_compound<const T>::value, "");
22 static_assert( std::is_compound<volatile T>::value, "");
23 static_assert( std::is_compound<const volatile T>::value, "");
24 #if TEST_STD_VER > 14
25 static_assert( std::is_compound_v<T>, "");
26 static_assert( std::is_compound_v<const T>, "");
27 static_assert( std::is_compound_v<volatile T>, "");
28 static_assert( std::is_compound_v<const volatile T>, "");
29 #endif
30 }
31
32 template <class T>
test_is_not_compound()33 void test_is_not_compound()
34 {
35 static_assert(!std::is_compound<T>::value, "");
36 static_assert(!std::is_compound<const T>::value, "");
37 static_assert(!std::is_compound<volatile T>::value, "");
38 static_assert(!std::is_compound<const volatile T>::value, "");
39 #if TEST_STD_VER > 14
40 static_assert(!std::is_compound_v<T>, "");
41 static_assert(!std::is_compound_v<const T>, "");
42 static_assert(!std::is_compound_v<volatile T>, "");
43 static_assert(!std::is_compound_v<const volatile T>, "");
44 #endif
45 }
46
47 class incomplete_type;
48
49 class Empty
50 {
51 };
52
53 class NotEmpty
54 {
55 virtual ~NotEmpty();
56 };
57
58 union Union {};
59
60 struct bit_zero
61 {
62 int : 0;
63 };
64
65 class Abstract
66 {
67 virtual ~Abstract() = 0;
68 };
69
70 enum Enum {zero, one};
71
72 typedef void (*FunctionPtr)();
73
74
main(int,char **)75 int main(int, char**)
76 {
77 test_is_compound<char[3]>();
78 test_is_compound<char[]>();
79 test_is_compound<void *>();
80 test_is_compound<FunctionPtr>();
81 test_is_compound<int&>();
82 test_is_compound<int&&>();
83 test_is_compound<Union>();
84 test_is_compound<Empty>();
85 test_is_compound<incomplete_type>();
86 test_is_compound<bit_zero>();
87 test_is_compound<int*>();
88 test_is_compound<const int*>();
89 test_is_compound<Enum>();
90 test_is_compound<NotEmpty>();
91 test_is_compound<Abstract>();
92
93 test_is_not_compound<std::nullptr_t>();
94 test_is_not_compound<void>();
95 test_is_not_compound<int>();
96 test_is_not_compound<double>();
97
98 return 0;
99 }
100