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DFSDwriteref/dswref
intn DFSDwriteref(char *
filename
, uint16
ref
)
filename
IN:
Name of the HDF file
ref
IN:
Reference number for next add or put operation
Purpose
DFSDwriteref
determines the reference number of the dataset to overwritten next by
DFSDputdata
or
DFSDadddata
, after checking for its existance.
Return value
Returns SUCCEED (or 0) if successful and FAIL (or -1) otherwise.
Description
If a non-existent reference number is specified, an error code will be returned.
As this routine alters data in a destructive manner,
DFSDwriteref
should be used with caution.
FORTRAN
integer function dswref(filename, ref)
character* (*) filename
integer ref
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hdfhelp@ncsa.uiuc.edu
HDF User's Reference Manual, Draft 06/09/97, NCSA HDF Development Group.