Class exception

inst/include/Rcpp/exceptions.h:37–62

Throwing an exception must be thread-safe to avoid surprises w/ OpenMP.

    // Throwing an exception must be thread-safe to avoid surprises w/ OpenMP.
    class exception : public std::exception {
    public:
        explicit exception(const char* message_, bool include_call = RCPP_DEFAULT_INCLUDE_CALL) :	// #nocov start
            message(message_),
            include_call_(include_call) {
            record_stack_trace();
        }
        exception(const char* message_, const char*, int, bool include_call = RCPP_DEFAULT_INCLUDE_CALL) :
            message(message_),
            include_call_(include_call) {
            record_stack_trace();
        }
        bool include_call() const {
            return include_call_;
        }
        virtual ~exception() throw() {}
        virtual const char* what() const throw() {
            return message.c_str();					// #nocov end
        }
        inline void copy_stack_trace_to_r() const;
    private:
        std::string message;
        bool include_call_;
        std::vector<std::string> stack;
        inline void record_stack_trace();
    };

    // simple helper
    static std::string toString(const int i) {				// #nocov start