Function operator()

inst/include/Rcpp/Function.h:84–87

        }

        SEXP operator()() const {
            Shield<SEXP> call(Rf_lang1(Storage::get__()));
            return Rcpp_fast_eval(call, R_GlobalEnv);
        }

        template <typename... T>
        SEXP operator()(const T&... args) const {