From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <45643264451dadf7b26404d52daa17a5@plan9.bell-labs.com>
From: "Russ Cox" <rsc@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] manual suggestions and upas/fs bug
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Date: Tue, 17 Sep 2002 09:28:59 -0400
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> p = realloc(p,n) is almost always a mistake.  If the allocation
> fails, the previous pointer value in p gets replaced by a null
> pointer value, so you lose the handle to the data that did not
> get extended (or, rarely, shrunk).

maybe this is what lucio was getting at, but when the next line is

	if(p == 0)
		sysfatal("out of memory");

then it doesn't really matter that we've lost the old p.