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 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
10
11 // <functional>
12
13 // not_equal_to
14
15 #include <functional>
16 #include <type_traits>
17 #include <cassert>
18
19 #include "test_macros.h"
20
main(int,char **)21 int main(int, char**)
22 {
23 typedef std::not_equal_to<int> F;
24 const F f = F();
25 #if TEST_STD_VER <= 17
26 static_assert((std::is_same<int, F::first_argument_type>::value), "" );
27 static_assert((std::is_same<int, F::second_argument_type>::value), "" );
28 static_assert((std::is_same<bool, F::result_type>::value), "" );
29 #endif
30 assert(!f(36, 36));
31 assert(f(36, 6));
32 #if TEST_STD_VER > 11
33 typedef std::not_equal_to<> F2;
34 const F2 f2 = F2();
35 assert(!f2(36, 36));
36 assert( f2(36, 6));
37 assert( f2(36, 6.0));
38 assert( f2(36.0, 6));
39 assert(!f2(36.0, 36));
40 assert(!f2(36, 36.0));
41
42 constexpr bool foo = std::not_equal_to<int> () (36, 36);
43 static_assert ( !foo, "" );
44
45 constexpr bool bar = std::not_equal_to<> () (36.0, 36);
46 static_assert ( !bar, "" );
47 #endif
48
49 return 0;
50 }
51