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 // extent
13
14 #include <type_traits>
15
16 #include "test_macros.h"
17
18 template <class T, unsigned A>
test_extent()19 void test_extent()
20 {
21 static_assert((std::extent<T>::value == A), "");
22 static_assert((std::extent<const T>::value == A), "");
23 static_assert((std::extent<volatile T>::value == A), "");
24 static_assert((std::extent<const volatile T>::value == A), "");
25 #if TEST_STD_VER > 14
26 static_assert((std::extent_v<T> == A), "");
27 static_assert((std::extent_v<const T> == A), "");
28 static_assert((std::extent_v<volatile T> == A), "");
29 static_assert((std::extent_v<const volatile T> == A), "");
30 #endif
31 }
32
33 template <class T, unsigned A>
test_extent1()34 void test_extent1()
35 {
36 static_assert((std::extent<T, 1>::value == A), "");
37 static_assert((std::extent<const T, 1>::value == A), "");
38 static_assert((std::extent<volatile T, 1>::value == A), "");
39 static_assert((std::extent<const volatile T, 1>::value == A), "");
40 #if TEST_STD_VER > 14
41 static_assert((std::extent_v<T, 1> == A), "");
42 static_assert((std::extent_v<const T, 1> == A), "");
43 static_assert((std::extent_v<volatile T, 1> == A), "");
44 static_assert((std::extent_v<const volatile T, 1> == A), "");
45 #endif
46 }
47
48 class Class
49 {
50 public:
51 ~Class();
52 };
53
main()54 int main()
55 {
56 test_extent<void, 0>();
57 test_extent<int&, 0>();
58 test_extent<Class, 0>();
59 test_extent<int*, 0>();
60 test_extent<const int*, 0>();
61 test_extent<int, 0>();
62 test_extent<double, 0>();
63 test_extent<bool, 0>();
64 test_extent<unsigned, 0>();
65
66 test_extent<int[2], 2>();
67 test_extent<int[2][4], 2>();
68 test_extent<int[][4], 0>();
69
70 test_extent1<int, 0>();
71 test_extent1<int[2], 0>();
72 test_extent1<int[2][4], 4>();
73 test_extent1<int[][4], 4>();
74 }
75