Method operator()

inst/include/Rcpp/Language.h:212–216

        binary_call( Function fun) : call(fun, R_NilValue, R_NilValue), proxy1(call,1), proxy2(call,2){}

        RESULT_TYPE operator()( const T1& o1, const T2& o2 ){
            proxy1 = o1;
            proxy2 = o2;
            return as<RESULT_TYPE>( call.eval() );
        }

    private:
        Language call;