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 // unary_negate
13 
14 #include <functional>
15 #include <type_traits>
16 #include <cassert>
17 
main()18 int main()
19 {
20     typedef std::unary_negate<std::logical_not<int> > F;
21     const F f = F(std::logical_not<int>());
22     static_assert((std::is_same<F::argument_type, int>::value), "" );
23     static_assert((std::is_same<F::result_type, bool>::value), "" );
24     assert(f(36));
25     assert(!f(0));
26 }
27