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Re: ptrdiff_t misuse [was :Re: (empty)]

From: Paul Eggert
Subject: Re: ptrdiff_t misuse [was :Re: (empty)]
Date: Fri, 06 Jul 2012 00:32:06 -0700
User-agent: Mozilla/5.0 (X11; Linux i686; rv:13.0) Gecko/20120615 Thunderbird/13.0.1

On 07/05/2012 11:43 PM, Eli Zaretskii wrote:
> The value of 'hscroll' comes from Lisp,
> so it's in the range of an EMACS_INT.
> Why not treat it as such?
> For that matter, why not change 'hscroll' in 'struct window' to
> EMACS_INT as well?

I would prefer that, yes.  Although Stefan said last week that
hscroll should be 'int'
on the grounds that hscroll values greater than INT_MAX don't work
anyway, perhaps that's moot now that you've fixed those problems with
large hscroll values.

If we change hscroll to EMACS_INT, we should also increase the max
hscroll value to MOST_POSITIVE_FIXNUM.

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