std::binary_function< _Arg1, _Arg2, _Result >(3) Library Functions Manual NAME std::binary_function< _Arg1, _Arg2, _Result > SYNOPSIS #include Inherited by , , , , std::divides< void >, std::equal_to< Key >, std::equal_to< void >, std::greater< void >, std::greater_equal< void >, std::less< void >, std::less_equal< void >, std::logical_and< void >, std::logical_or< void >, std::minus< void >, std::modulus< void >, std::multiplies< void >, and std::not_equal_to< void >. Public Types typedef _Arg1 first_argument_type first_argument_type is the type of the first argument typedef _Result result_type result_type is the return type typedef _Arg2 second_argument_type second_argument_type is the type of the second argument Detailed Description template struct std::binary_function< _Arg1, _Arg2, _Result >"Helper for defining adaptable binary function objects. Deprecated Deprecated in C++11, no longer in the standard since C++17. Member Typedef Documentation template typedef _Arg1 std::binary_function< _Arg1, _Arg2, _Result >::first_argument_type first_argument_type is the type of the first argument template typedef _Result std::binary_function< _Arg1, _Arg2, _Result >::result_type result_type is the return type template typedef _Arg2 std::binary_function< _Arg1, _Arg2, _Result >::second_argument_type second_argument_type is the type of the second argument Author Generated automatically by Doxygen for libstdc++ from the source code. libstdc++ std::binary_function< _Arg1, _Arg2, _Result >(3)