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Path: utzoo!linus!philabs!cmcl2!acf4!greenber
From: greenber@acf4.UUCP
Newsgroups: net.unix
Subject: Re: C help wanted
Message-ID: <12700012@acf4.UUCP>
Date: Tue, 13-Nov-84 09:55:00 EST
Article-I.D.: acf4.12700012
Posted: Tue Nov 13 09:55:00 1984
Date-Received: Thu, 15-Nov-84 01:57:00 EST
References: <-193000@uiucdcsb.UUCP>
Organization: New York University
Lines: 13
Nf-ID: #R:uiucdcsb:19300024:acf4:12700012:000:631
Nf-From: acf4!greenber    Nov 13 09:55:00 1984

<>

Assuming that you need two or more different programs to access this data,
remember to subtract/add the offset of the beginning of these structures
BEFORE writing it out to disk and AFTER reading it in.  This makes the
data "position independent".  Another way of doing it (involves more work
during the run of the program, though) is to only have offsets to the
data in question stored instead of pointers.  That is offsets from some
arbitrary data address that is at the begiining of your structure and
also, again, this requires contiguous structures.


Ross M. Greenberg  @ NYU   ---->  allegra!cmcl2!acf4!greenber  <----