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_integral
13
14 #include <type_traits>
15 #include <cstddef> // for std::nullptr_t
16 #include "test_macros.h"
17
18 template <class T>
test_is_integral()19 void test_is_integral()
20 {
21 static_assert( std::is_integral<T>::value, "");
22 static_assert( std::is_integral<const T>::value, "");
23 static_assert( std::is_integral<volatile T>::value, "");
24 static_assert( std::is_integral<const volatile T>::value, "");
25 #if TEST_STD_VER > 14
26 static_assert( std::is_integral_v<T>, "");
27 static_assert( std::is_integral_v<const T>, "");
28 static_assert( std::is_integral_v<volatile T>, "");
29 static_assert( std::is_integral_v<const volatile T>, "");
30 #endif
31 }
32
33 template <class T>
test_is_not_integral()34 void test_is_not_integral()
35 {
36 static_assert(!std::is_integral<T>::value, "");
37 static_assert(!std::is_integral<const T>::value, "");
38 static_assert(!std::is_integral<volatile T>::value, "");
39 static_assert(!std::is_integral<const volatile T>::value, "");
40 #if TEST_STD_VER > 14
41 static_assert(!std::is_integral_v<T>, "");
42 static_assert(!std::is_integral_v<const T>, "");
43 static_assert(!std::is_integral_v<volatile T>, "");
44 static_assert(!std::is_integral_v<const volatile T>, "");
45 #endif
46 }
47
48 class Empty
49 {
50 };
51
52 class NotEmpty
53 {
54 virtual ~NotEmpty();
55 };
56
57 union Union {};
58
59 struct bit_zero
60 {
61 int : 0;
62 };
63
64 class Abstract
65 {
66 virtual ~Abstract() = 0;
67 };
68
69 enum Enum {zero, one};
70 struct incomplete_type;
71
72 typedef void (*FunctionPtr)();
73
74
main()75 int main()
76 {
77 test_is_integral<short>();
78 test_is_integral<unsigned short>();
79 test_is_integral<int>();
80 test_is_integral<unsigned int>();
81 test_is_integral<long>();
82 test_is_integral<unsigned long>();
83 test_is_integral<bool>();
84 test_is_integral<char>();
85 test_is_integral<signed char>();
86 test_is_integral<unsigned char>();
87 test_is_integral<wchar_t>();
88
89 test_is_not_integral<std::nullptr_t>();
90 test_is_not_integral<void>();
91 test_is_not_integral<int&>();
92 test_is_not_integral<int&&>();
93 test_is_not_integral<int*>();
94 test_is_not_integral<double>();
95 test_is_not_integral<const int*>();
96 test_is_not_integral<char[3]>();
97 test_is_not_integral<char[]>();
98 test_is_not_integral<Union>();
99 test_is_not_integral<Enum>();
100 test_is_not_integral<FunctionPtr>();
101 test_is_not_integral<Empty>();
102 test_is_not_integral<bit_zero>();
103 test_is_not_integral<NotEmpty>();
104 test_is_not_integral<Abstract>();
105 test_is_not_integral<incomplete_type>();
106 }
107