Function my_datetime_round

sql/sql_time.cc:1391–1400

Round datetime value to the given precision. @param IN/OUT ltime The value to round. @param dec Precision. @return False on success, true on error. */

  @return        False on success, true on error.
*/
bool my_datetime_round(MYSQL_TIME *ltime, uint dec, int *warnings)
{
  DBUG_ASSERT(dec <= DATETIME_MAX_DECIMALS);
  /* Add half away from zero */
  bool rc= datetime_add_nanoseconds_with_round(ltime,
                                               msec_round_add[dec], warnings);
  /* Truncate non-significant digits */
  my_time_trunc(ltime, dec);
  return rc;
}


/**