1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 
9 // <functional>
10 
11 // logical_not
12 
13 #include <functional>
14 #include <type_traits>
15 #include <cassert>
16 
17 #include "test_macros.h"
18 
main(int,char **)19 int main(int, char**)
20 {
21     typedef std::logical_not<int> F;
22     const F f = F();
23     static_assert((std::is_same<F::argument_type, int>::value), "" );
24     static_assert((std::is_same<F::result_type, bool>::value), "" );
25     assert(!f(36));
26     assert(f(0));
27 #if TEST_STD_VER > 11
28     typedef std::logical_not<> F2;
29     const F2 f2 = F2();
30     assert(!f2(36));
31     assert( f2(0));
32     assert(!f2(36L));
33     assert( f2(0L));
34 
35     constexpr bool foo = std::logical_not<int> () (36);
36     static_assert ( !foo, "" );
37 
38     constexpr bool bar = std::logical_not<> () (36);
39     static_assert ( !bar, "" );
40 #endif
41 
42   return 0;
43 }
44