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DFANgetfdslen/dagfdsl
int32 DFANgetfdslen(int32
file_id
, intn
isfirst
)
file_id
IN:
File identifier returned by
Hopen
isfirst
IN:
Determines the description the retrieved length information applies to
Purpose
Returns the length of a file description.
Return value
Returns the length of the file description if successful and FAIL (or -1) otherwise.
Description
When
DFANgetfdslen
is first called for a given file, it returns the length of the first file description. In order to get the lengths of successive file descriptions, you must call
DFANgetfds
between calls to
DFANgetfdslen
. Successive calls to
DFANgetfdslen
without calling
DFANgetfds
between them will return the length of the same file description.
V.alid values for
isfirst
are: 1 to read the length of the first description and 0 to read the length of the next description.
FORTRAN
integer function dagfdsl(file_id, isfirst)
integer file_id, isfirst
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hdfhelp@ncsa.uiuc.edu
HDF User's Reference Manual, Draft 06/09/97, NCSA HDF Development Group.