Method checked_get

inst/include/Rcpp/XPtr.h:146–151

* Access underlying pointer throwing an exception if the ptr is NULL */

     * Access underlying pointer throwing an exception if the ptr is NULL
     */
    inline T* checked_get() const {
        T* ptr = get();
        if (ptr == NULL)
            throw ::Rcpp::exception("external pointer is not valid");									// #nocov
        return ptr;
    }

    /**
     * Returns a reference to the object wrapped. This allows this