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Marcelo Cantos wrote:
> > The basic problem is code like this:
> >
> > unsigned count;
> > while (--count > 0) {
> > /* do something */
> > }
> >
> > This loop will never fail,
>
> Yes it will. I presume you were thinking of >=.
Yes. It's hard to write bad code *deliberately*; I hesitated for
a while, and finally settled for the above (incorrectly correct)
version.
> Usually one will find that if 2 billion isn't a large enough number
> then 4 billion isn't either (or won't be for long), and a 64 kB file
> size limit is hardly less annoying than a 32 kB limit, so increased
> numerical range isn't as compelling an argument for unsigned types as
> it might seem.
Just so.
> Consequently I think it is unwise to enforce a no-unsigned-types rule.
In the Java context, however, I think it is safe enough.
--
John Cowan http://www.ccil.org/~cowan cowan@c...
Schlingt dreifach einen Kreis um dies! / Schliesst euer Aug vor heiliger Schau,
Denn er genoss vom Honig-Tau / Und trank die Milch vom Paradies.
-- Coleridge / Politzer
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