};
time_t ts2time_t(const IBPP::Timestamp & ts);
void time_t2ts(time_t t, IBPP::Timestamp * ts);
void ym2date(int year, int month, IBPP::Date * date);
};
time_t ts2time_t(const IBPP::Timestamp & ts);
void time_t2ts(time_t t, IBPP::Timestamp * ts);
void ym2date(int year, int month, IBPP::Date * date);