From: [EMAIL PROTECTED]
> 2008/7/14 Weddington, Eric <[EMAIL PROTECTED]>:> > A 24-bit integer is not
> supported by the C language. In theory, support> > could be added to GCC, but
> then it would be considered an extension to> > the C language. And it would
> also be difficult and/or time-consuming to> > add to GCC.> > The C standard
> doesn't dictate the size of any integer type, except that char> must be large
> enough to hold the environments standard character set and> the size of any
> larger types is ordered as you'd expect.> char <= short <= int <= long
Also that short and int must be able to represent at least -32767 to +32767,
and long must be able to represent +/-2,147,483,647. So int24_t would have to
be a special type outside the standard types.
And I think (though I'm not certain) that it would have to be promoted to long
before any operator could be applied. Some of that would be mitigated by the
as-if rule, of course...
> int is typically the natural word size for the architecture, but often on 8
> bit> micros it will be larger (since char typically provides an 8 bit int
> anyway.)
It's larger because an 8 bits can't represent the required range of values.
Regards,
-=Dave
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