[Boost-users] [function] equivalent of std::binary_function

Does Boost have the technology to define the equivalent of std::binary_function eg something like boost::nary_function Note that I am not interested in storing any function pointer, so using boost::function would be a waste. But I want to use the nice syntax "" that boost::function uses, instead of "". The objective is to inherit from this class and instead of class op : std::binary_function{ ... } to have class op: nary_function{ ... } if possible. Thank you, Alfredo