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bug#33765: emacs-26.1-mac-7.4; (expt 2 140) ; produces 0 in scratch buff


From: Eli Zaretskii
Subject: bug#33765: emacs-26.1-mac-7.4; (expt 2 140) ; produces 0 in scratch buffer, unexpectedly
Date: Mon, 17 Dec 2018 17:53:37 +0200

> From: Van L <address@hidden>
> Date: Mon, 17 Dec 2018 08:24:21 +1100
> Cc: address@hidden,
>  address@hidden
> 
> > The correct value cannot be represented in an Emacs fixnum.  What did you 
> > expect Emacs to do?  IOW, what would be the "expected" result, given the 
> > limited range of integers we can represent?
> 
> I expect no answer and an error out with an informative explanation if asked 
> for, when Emacs is unable to do.

Since we already do better than that on the master branch (including
signal an overflow error when even a bignum cannot represent the
result), I think this bug is already solved and should be closed.

> A helpful place to explain the versioning policy would be a file in the 
> emacs/etc directory.
> 
> Version 26 means stable, 27 means unstable is my guess.

We don't have stable and unstable releases.  We have a release branch
and a development branch, and their roles are described in CONTRIBUTE.





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