Method LongjumpException

inst/include/Rcpp/exceptions.h:165–169

struct LongjumpException {
    SEXP token;
    LongjumpException(SEXP token_) : token(token_) {
        if (internal::isLongjumpSentinel(token)) {
            token = internal::getLongjumpToken(token);
        }
    }
};

    #define RCPP_ADVANCED_EXCEPTION_CLASS(__CLASS__, __WHAT__)                        \