unary_negate.pass.cpp revision b64f8b07c104c6cc986570ac8ee0ed16a9f23976 
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
18int 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_base_of<std::unary_function<int, bool>, F>::value), "");
23    assert(f(36));
24    assert(!f(0));
25}
26