Re: trapping type conversion errors

[George Constantinides <gconstantinides(at)mhl.nsw.gov.au>]

William,

The error generated in your example is an IO error and can be trapped with
ON_IOERROR. It is a bit of a pain that CATCH will not catch this type of
error, but all is not lost.


PRO junk
;  catch,error
;  IF error NE 0 THEN BEGIN
;    message,!error_state.msg,/info
;    return
;  ENDIF

  ON_IOERROR, bad_data

  t = ['01','aa']
  tt = fix(t,type=2)
  ;print,"I'm here"
  ;message,!error_state.msg,/info

;  help,!error_state,/st

  Return

bad_data:
  help,!error_state,/st

END


Regards,

George Constantinides
email:  GeorgeC@mhl.nsw.gov.au
URL:    http://www.mhl.nsw.gov.au