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 // <functional>
11
12 // logical_and
13
14 #include <functional>
15 #include <type_traits>
16 #include <cassert>
17
main()18 int main()
19 {
20 typedef std::logical_and<int> F;
21 const F f = F();
22 static_assert((std::is_base_of<std::binary_function<int, int, bool>, F>::value), "");
23 assert(f(36, 36));
24 assert(!f(36, 0));
25 assert(!f(0, 36));
26 assert(!f(0, 0));
27 #if _LIBCPP_STD_VER > 11
28 typedef std::logical_and<> F2;
29 const F2 f2 = F2();
30 assert( f2(36, 36));
31 assert( f2(36, 36L));
32 assert( f2(36L, 36));
33 assert(!f2(36, 0));
34 assert(!f2(0, 36));
35 assert( f2(36, 36L));
36 assert(!f2(36, 0L));
37 assert(!f2(0, 36L));
38 assert( f2(36L, 36));
39 assert(!f2(36L, 0));
40 assert(!f2(0L, 36));
41
42 constexpr bool foo = std::logical_and<int> () (36, 36);
43 static_assert ( foo, "" );
44
45 constexpr bool bar = std::logical_and<> () (36.0, 36);
46 static_assert ( bar, "" );
47 #endif
48 }
49