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Subject: Re: integer overflow
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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Stefan Monnier wrote:

> Indeed, I thought about it as a pure bug-fix, but it needs to be added
> to the NEWS.  Can you do that and update the doc accordingly?

I don't really understand it. In a 32-bit Emacs:

(1+ 536870911) -536870912
(+ 2 536870911) -536870911  
(1+ 536870912)  536870913.0
(1+ 4294967295) overflow
(1+ 4294967295.0) 4294967296.0

Can you summarize how it's supposed to work?