FXFINDEND
Name
FXFINDEND
Purpose
Find the end of a FITS file.
Explanation
This routine finds the end of the last logical record in a FITS file,
which may be different from that of the physical end of the file. Each
FITS header is read in and parsed, and the file pointer is moved to
where the next FITS extension header would be if there is one, or to
the end of the file if not.
Use
FXFINDEND, UNIT [, EXTENSION]
Inputs
UNIT = Logical unit number for the opened file.
Opt. Inputs :
None.
Outputs
None.
Opt. Outputs:
EXTENSION = The extension number that a new extension would
have if placed at the end of the file.
Keywords
None.
Calls
FXHREAD, FXPAR
Common :
None.
Restrictions
The file must have been opened for block I/O. There must not be any
FITS "special records" at the end of the file.
Side Effects
None.
Category
Data Handling, I/O, FITS, Generic.
Prev. Hist. :
William Thompson, Feb. 1992.
Written :
William Thompson, GSFC, February 1992.
Modified :
Version 1, William Thompson, GSFC, 12 April 1993.
Incorporated into CDS library.
Version
Version 1, 12 April 1993.
Converted to IDL V5.0 W. Landsman September 1997
Added EXTENSION parameter, CM 1999 Nov 18
Allow for possible 64bit integer number of bytes W. Landsman Nov 2007
make Ndata a long64 to deal with large files. E. Hivon Mar 2008