File: unary_negate.pass.cpp

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//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <functional>

// unary_negate

#include <functional>
#include <type_traits>
#include <cassert>

int main()
{
    typedef std::unary_negate<std::logical_not<int> > F;
    const F f = F(std::logical_not<int>());
    static_assert((std::is_same<F::argument_type, int>::value), "" );
    static_assert((std::is_same<F::result_type, bool>::value), "" );
    assert(f(36));
    assert(!f(0));
}