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From: tjr@ihnet.ATT.COM (Tom Roberts)
Newsgroups: comp.sys.ibm.pc
Subject: Turbo C realloc and malloc and free
Message-ID: <564@ihnet.ATT.COM>
Date: Thu, 27-Aug-87 14:55:23 EDT
Article-I.D.: ihnet.564
Posted: Thu Aug 27 14:55:23 1987
Date-Received: Sat, 29-Aug-87 10:35:47 EDT
Organization: AT&T Bell Laboratories - Naperville, Illinois
Lines: 15
Keywords: turboc

In Turbo C (Large memory model), the following will clobber memory 
(re-boot time):

	free((char *)0);

This is highly annoying, as it is a no-op on the UNIX systems I have used.

Note that my UNIX SVr2 manual says the results are "undefined" for this call,
because the argument to free is not a pointer to a block previously allocated
by malloc().

I suspect that this is also the problem with the posted "realloc()" problem.

Tom Roberts
ihnp4!ihnet!tjr