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From: dtynan@sultra.UUCP (Der Tynan)
Newsgroups: comp.os.minix
Subject: Re: Minix/ST <stdio.h> problems.
Message-ID: <2598@sultra.UUCP>
Date: 25 Oct 88 04:16:13 GMT
Article-I.D.: sultra.2598
References: <249@cstw01.UUCP>
Organization: Tynan Computers, Sunnyvale, CA
Lines: 23

In article <249@cstw01.UUCP>, meulenbr@cstw01.UUCP (Frans Meulenbroeks) writes:
> 
> This is a killer on an ST since sizeof(char *) == 32 and sizeof(int) == 16.
> Solution: change the 0 in (char *)0
> 
> Frans Meulenbroeks        (meulenbr@cst.prl.philips.nl)

Hmmm.  I've always been partial to the idea that sizeof(char *) == sizeof(int).
In fact, I've seen a lot of code (not necessarily my own), which assumes this.
If one needs sizeof(int) == 16, then use short.  It's my belief that if you
have a true 32-bit address space (lucky you), then there's no reason to keep
ints to a small size.  Of course, one should always use casts with NULL anyway.
I don't know, offhand, of any compiler that requires this, but it's good
practice, as shown by your problem.  NULL is best left as 0, and for instance,
	if ((memptr = malloc(BUFSIZE)) == (char *)NULL)
		etc();

Hope this helps!
						- Der
-- 
Reply:	dtynan@sultra.UUCP		(Der Tynan @ Tynan Computers)
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