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From: cilibrar@athena.ecs.csus.edu (Rudi Cilibrasi)
Newsgroups: comp.sys.amiga.programmer
Subject: How do you truncate a file?
Keywords: truncate, file
Message-ID: <1991May5.063352.6627@csusac.csus.edu>
Date: 5 May 91 06:33:52 GMT
Sender: usenet@csusac.csus.edu (News account (alt))
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Organization: California State University, Sacramento
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Suppose that I have a 100-byte file, and I want to get rid of the last
ten bytes.  Is there any way to do this other than freading in the
entire file and then fwriting out only 90 bytes of it?  I'd like to find
a way to avoid having to read the whole file into memory.  I've heard
that there is a function called ftruncate that does this, but my
compiler (Aztec C 5.0) doesn't have this one.  (It also doesn't have
chsize, which was another suggestion)  Thanks for any help.