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Re: Truncating file with OPENU [message #42340]

Sun, 30 January 2005 03:44

Wayne Landsman
Messages: 117
Registered: January 1997

Senior Member

"Wayne Landsman" <landsman@sampa.gsfc.nasa.gov> wrote in message
news:cte9ic$akd$1@skates.gsfc.nasa.gov...
>
> There used to be a VMS keyword TRUNCATE_ON_CLOSE to OPENU that would do
> what I want: truncate the file at the current file pointer position when
> the file was closed. I'd prefer an OS-independent method.

Jim Pendleton points out that there is now an intrinsic IDL procedure to do
exactly what I want:

--the TRUNCATE_LUN procedure was introduced in V5.6.

--Wayne Landsman

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