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From:	Ian Miller <Ian AT shelob DOT plus DOT com>
Newsgroups:	comp.os.msdos.djgpp
Subject:	Re: casting a pointer of a pointer
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References:	<4PpD8.150757$v7 DOT 14044373 AT bin6 DOT nnrp DOT aus1 DOT giganews DOT com>
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Date:	Sun, 12 May 2002 14:17:37 +0100
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In article <4PpD8.150757$v7 DOT 14044373 AT bin6 DOT nnrp DOT aus1 DOT giganews DOT com>, 
zfysz AT cybertrails DOT com says...
> unsigned short repcnt;
> unsigned char *li_s;
> 
> // get the WORD at li_s
> repcnt = (unsigned short) (unsigned short *) *li_s;
> 
> What I am trying to do is get the WORD at the BYTE PTR's
> location.

Surely you are casting (*li_s) which is an unsigned char
not a pointer.  Perhaps this would work better:

repcnt = *((unsigned short *) li_s);

Even that is not really safe because char pointers
don't have to satisfy the same alignment rules as
short pointers on all hardware.  I believe it does
work on x86 processors though.

> In VC6.x and QC2.5, the above compiles and
> works as expected

As you expect perhaps, but not as I do if it does
what you say.

HTH,
Ian

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