Re: ptrdiff_t misuse

[Paul Eggert]

On 07/06/2012 01:34 AM, Eli Zaretskii wrote:
>> If we change hscroll to EMACS_INT, we should also increase the max
>> > hscroll value to MOST_POSITIVE_FIXNUM.
> It's already that:
> 
>      ptrdiff_t hscroll_max = min (MOST_POSITIVE_FIXNUM, PTRDIFF_MAX);
>      ptrdiff_t new_hscroll = clip_to_bounds (0, hscroll, hscroll_max);
> 
> (Of course, if we declare these variables EMACS_INT, PTRDIFF_MAX will
> not be needed anymore.)
> 
> Or did you mean something else?

No, that's pretty much what I meant -- get rid of the PTRDIFF_MAX there
while we're changing ptrdiff_t to EMACS_INT for hscroll values.  Some
other minor things would need changing too, but it shouldn't be a
problem.