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_not
13 
14 #include <functional>
15 #include <type_traits>
16 #include <cassert>
17 
18 #include "test_macros.h"
19 
main()20 int main()
21 {
22     typedef std::logical_not<int> F;
23     const F f = F();
24     static_assert((std::is_same<F::argument_type, int>::value), "" );
25     static_assert((std::is_same<F::result_type, bool>::value), "" );
26     assert(!f(36));
27     assert(f(0));
28 #if TEST_STD_VER > 11
29     typedef std::logical_not<> F2;
30     const F2 f2 = F2();
31     assert(!f2(36));
32     assert( f2(0));
33     assert(!f2(36L));
34     assert( f2(0L));
35 
36     constexpr bool foo = std::logical_not<int> () (36);
37     static_assert ( !foo, "" );
38 
39     constexpr bool bar = std::logical_not<> () (36);
40     static_assert ( !bar, "" );
41 #endif
42 }
43