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 // UNSUPPORTED: c++98, c++03, c++11
11 // <experimental/type_traits>
12
13 // template<class... B> struct conjunction; // C++17
14 // template<class... B>
15 // constexpr bool conjunction_v = conjunction<B...>::value; // C++17
16
17 #include <experimental/type_traits>
18 #include <cassert>
19
20 namespace ex = std::experimental;
21
22 struct True { static constexpr bool value = true; };
23 struct False { static constexpr bool value = false; };
24
main()25 int main()
26 {
27 static_assert ( ex::conjunction<>::value, "" );
28 static_assert ( ex::conjunction<std::true_type >::value, "" );
29 static_assert (!ex::conjunction<std::false_type>::value, "" );
30
31 static_assert ( ex::conjunction_v<>, "" );
32 static_assert ( ex::conjunction_v<std::true_type >, "" );
33 static_assert (!ex::conjunction_v<std::false_type>, "" );
34
35 static_assert ( ex::conjunction<std::true_type, std::true_type >::value, "" );
36 static_assert (!ex::conjunction<std::true_type, std::false_type>::value, "" );
37 static_assert (!ex::conjunction<std::false_type, std::true_type >::value, "" );
38 static_assert (!ex::conjunction<std::false_type, std::false_type>::value, "" );
39
40 static_assert ( ex::conjunction_v<std::true_type, std::true_type >, "" );
41 static_assert (!ex::conjunction_v<std::true_type, std::false_type>, "" );
42 static_assert (!ex::conjunction_v<std::false_type, std::true_type >, "" );
43 static_assert (!ex::conjunction_v<std::false_type, std::false_type>, "" );
44
45 static_assert ( ex::conjunction<std::true_type, std::true_type, std::true_type >::value, "" );
46 static_assert (!ex::conjunction<std::true_type, std::false_type, std::true_type >::value, "" );
47 static_assert (!ex::conjunction<std::false_type, std::true_type, std::true_type >::value, "" );
48 static_assert (!ex::conjunction<std::false_type, std::false_type, std::true_type >::value, "" );
49 static_assert (!ex::conjunction<std::true_type, std::true_type, std::false_type>::value, "" );
50 static_assert (!ex::conjunction<std::true_type, std::false_type, std::false_type>::value, "" );
51 static_assert (!ex::conjunction<std::false_type, std::true_type, std::false_type>::value, "" );
52 static_assert (!ex::conjunction<std::false_type, std::false_type, std::false_type>::value, "" );
53
54 static_assert ( ex::conjunction_v<std::true_type, std::true_type, std::true_type >, "" );
55 static_assert (!ex::conjunction_v<std::true_type, std::false_type, std::true_type >, "" );
56 static_assert (!ex::conjunction_v<std::false_type, std::true_type, std::true_type >, "" );
57 static_assert (!ex::conjunction_v<std::false_type, std::false_type, std::true_type >, "" );
58 static_assert (!ex::conjunction_v<std::true_type, std::true_type, std::false_type>, "" );
59 static_assert (!ex::conjunction_v<std::true_type, std::false_type, std::false_type>, "" );
60 static_assert (!ex::conjunction_v<std::false_type, std::true_type, std::false_type>, "" );
61 static_assert (!ex::conjunction_v<std::false_type, std::false_type, std::false_type>, "" );
62
63 static_assert ( ex::conjunction<True >::value, "" );
64 static_assert (!ex::conjunction<False>::value, "" );
65
66 static_assert ( ex::conjunction_v<True >, "" );
67 static_assert (!ex::conjunction_v<False>, "" );
68 }
69