Message-ID: <3747A431.534DD67C@softhome.net>
From: Chris Mears <chris_mears AT SoftHome DOT net>
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Subject: Re: typedef'ing a 24-bit integer
References: <37459ABF DOT FF51CA41 AT aaual DOT ualg DOT pt> <374601DE DOT 630CEA74 AT cartsys DOT com> <3746C254 DOT 523D AT erols DOT com>
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Date: Sun, 23 May 1999 16:46:09 +1000
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To: djgpp AT delorie DOT com
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John S. Fine wrote:
> 
> Nate Eldredge wrote:
> >
> > Miguel Guerreiro wrote:
> > >
> > > How can you do somethin kinda like this:
> > >
> > >             typedef int24 (24-bit integer)
> > >             typedef uint24 (24-bit unsigned int)
> > >
> > > I want it to take *exactly* 24-bit of space
> >
> > You can't.
> >
> > Why do you want to do this?
> 
>   "can't" is a bit strong;  But it certainly takes some very
> ugly kludges.
> 
<snip bit about using 3 unsigned chars>

Clever, but who says a char is 8 bit?  The standard says it must be at
*least* 8 bit, but it could be 47 bit for all we know.  Of course, this
is only important if you want to make a _portable_ program.

Chris


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