Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!cluster!metro!bunyip!moondance!uqcspe!qfagus!gordon
From: gordon@qfagus.OZ (Peter Gordon)
Newsgroups: comp.lang.c
Subject: Turboc Malloc
Keywords: Turboc Malloc
Message-ID: <26317@qfagus.OZ>
Date: 27 Feb 90 21:51:32 GMT
Organization: Department of Forestry, Brisbane, Australia
Lines: 20


>	Please tell me I'm doing something stupid.
>		head = (char **)malloc(200 * sizeof(char **));
>		for(cp = head, i = 0; i < 200; ++i, ++cp)
>		{
>			fprintf(stdout,"Freeing %d\n", i);
>			fflush(stdout);
>			free(cp);
>		}
>	}
My face is red, as suspected the fault is mine and is stupid.  I'm
freeing a pointer and THEN trying to increment it.
Code something like:
X	for(cp = &head[198]; cp >= head; --cp)
X		free(cp + 1);
X	free(head);
works as expected.  People abuse the bugs in compilers, but in many
instances, they are very forgiving of fools such as I.

Peter Gordon