Error Handling

The NDF_ routines adhere throughout to the standard error-handling strategy described in SUN/104. Most of the routines therefore carry an integer inherited status argument called STATUS and will return without action unless this is set to the value SAI__OK³ when they are invoked. When necessary, error reports are made through the ERR_ routines in the manner described in SUN/104. Where exceptions to this general behaviour exist, they are noted in the appropriate subroutine descriptions in Appendix .