Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!wuarchive!cs.utexas.edu!uunet!virtech!cpcahil
From: cpcahil@virtech.uucp (Conor P. Cahill)
Newsgroups: comp.lang.c
Subject: Re: Q: Realloc of function parameter problem.
Message-ID: <1989Nov26.195601.20874@virtech.uucp>
Date: 26 Nov 89 19:56:01 GMT
References: <3752@umiami.miami.edu>
Organization: Virtual Technologies Inc.
Lines: 19

In article <3752@umiami.miami.edu>, SLORES@umiami.miami.edu (Stanislaw L. Olejniczak) writes:
>     *substr = (char *) realloc ( (unsigned) (numchar + 1), *substr);

First, you must RTFM.  The order of arguments to realloc is:

		realloc(ptr,size);
		char * ptr;
		unsigned size;

Second, although not explicitly stated in the manual, the pointer passed
to realloc must be a ptr that was returned by a previous malloc.  Your
example was passing a pointer to an automatic variable.


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