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- Description:
The routine searches the history component of an NDF to identify
the first history record which was written after a specified date
and time. The record number is returned. A value of zero is
returned if no suitable record exists.
- Invocation:
CALL NDF_HFIND( INDF, YMDHM, SEC, EQ, IREC, STATUS )
- Arguments:
-
INDF = INTEGER (Given)
-
NDF identifier.
-
YMDHM( 5 ) = INTEGER (Given)
-
The year, month, day, hour and minute fields of the required
date and time, in that order, stored as integers (the month
field starts at 1 for January).
-
SEC = REAL (Given)
-
The seconds field of the required date and time.
-
EQ = LOGICAL (Given)
-
If a .TRUE. value is given for this argument, then a history
record whose date and time exactly matches that specified may
be returned. Otherwise, the record must have been written
strictly later than specified.
-
IREC = INTEGER (Returned)
-
The record number of the required history record, or zero if
no suitable record exists.
-
STATUS = INTEGER (Given and Returned)
-
The global status.
- Notes:
The last history record written before a specified date and time
may be found by subtracting 1 from the record number returned by
this routine (or using the final record if this routine returns
zero).
Next: NDF_HINFO - Obtain information about an NDF's history component
Up: FORTRAN ROUTINE DESCRIPTIONS
Previous: NDF_HEND - End NDF history recording for the current application
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