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Date: Sat, 08 Sep 2012 10:13:49 -0400
From: pete <pfiland@mindspring.com>
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Subject: Re: Restricted unsigned integer range would have been better?
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Tim Rentsch wrote:
> 
> pete <pfiland@mindspring.com> writes:
> 
> > Philip Lantz wrote:
> >> [..snip..snip..]
> >>
> >> Do you really? Would you use casts in situations like these?
> >>   5. while (*s != '\0')
> >>          n = n * 10 + (*s - '0');
> >>
> >> I would find them to be undesirable clutter.
> >
> > I was thinking the same thing.
> >
> > And I think you meant to imply
> > that (*s) is an expression of type char.
> >
> > If n is of type int and also not negative,
> > then you could write without having to use parentheses
> >     n = n * 10 - '0' + *s;
> > with no possibility of overflow.
> 
> Is there some reason you wouldn't write
> 
>     n = *s-'0' + n*10;   /* or add more spacing, if preferred */
> 
> ?


Not any good reason.

I have an aesthetic preference 
for writing the more strongly associated arithmetic operators first.

-- 
pete