Function RCPP_API_CLASS

inst/include/Rcpp/InternalFunction.h:33–59

namespace Rcpp{

    RCPP_API_CLASS(InternalFunction_Impl) {
    public:

        RCPP_GENERATE_CTOR_ASSIGN(InternalFunction_Impl)

        template <typename RESULT_TYPE, typename... Args>
        InternalFunction_Impl(const std::function<RESULT_TYPE(Args...)> &fun) {
            set(
                XPtr<Rcpp::InternalFunctionWithStdFunction::CppFunctionBaseFromStdFunction<RESULT_TYPE, Args...> >(
                    new Rcpp::InternalFunctionWithStdFunction::CppFunctionBaseFromStdFunction<RESULT_TYPE, Args...>(fun),
                    false
                    )
                );
        }
        template <typename RESULT_TYPE, typename... T>
        InternalFunction_Impl(RESULT_TYPE (*fun)(T...)) {
            set(XPtr<CppFunctionN<RESULT_TYPE, T...> >(new CppFunctionN<RESULT_TYPE, T...>(fun), true));
        }

        void update(SEXP){}
    private:

        inline void set( SEXP xp){
            Environment RCPP = Environment::Rcpp_namespace() ;
            Function intf = RCPP["internal_function"] ;
            Storage::set__( intf( xp ) ) ;
        }

    };