//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <functional>
// negate
#include<functional>#include<type_traits>#include<cassert>intmain(){typedefstd::negate<int>F;constFf=F();static_assert((std::is_base_of<std::unary_function<int,int>,F>::value),"");assert(f(36)==-36);}