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NDF_TRACE - Set the internal NDF_ system error-tracing flag

Description:
The routine sets an internal flag in the NDF_ system which enables or disables error-tracing messages. If this flag is set to .TRUE., then any error occurring within the NDF_ system will be accompanied by error messages indicating which internal routines have exited prematurely as a result. If the flag is set to .FALSE., this internal diagnostic information will not appear and only standard error messages will be produced.

Invocation:
CALL NDF_TRACE( NEWFLG, OLDFLG )

Arguments:
NEWFLG = LOGICAL (Given)
The new value to be set for the error-tracing flag.
OLDFLG = LOGICAL (Returned)
The previous value of the flag.

Notes:
This routine is obsolete. The internal error tracing flag (referred to above) corresponds with the TRACE tuning parameter used by NDF_TUNE and NDF_GTUNE, so the same effect can be obtained by substituting these two routines.



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Next: CHANGES AND NEW FEATURES
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Starlink User Note 33
R.F. Warren-Smith
11th January 2000
E-mail:rfws@star.rl.ac.uk

Copyright © 2000 Council for the Central Laboratory of the Research Councils