cxx/test/utilities/function.objects/arithmetic.operations/plus.pass.cpp

//===----------------------------------------------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

// <functional>

// plus

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

int main()
{
    typedef std::plus<int> F;
    const F f = F();
    static_assert((std::is_base_of<std::binary_function<int, int, int>, F>::value), "");
    assert(f(3, 2) == 5);
}