From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Paul Eggert <eggert@cs.ucla.edu>
Cc: Dmitry Antipov <dmantipov@yandex.ru>, emacs-devel@gnu.org
Subject: Re: Proposal: immediate strings
Date: Thu, 24 May 2012 08:51:44 -0400 [thread overview]
Message-ID: <jwvwr41d9t6.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <4FBDE8BB.5020309@cs.ucla.edu> (Paul Eggert's message of "Thu, 24 May 2012 00:52:27 -0700")
>> we could just grab a second bit from `size'
>> for the `immbit'.
> Only if MOST_POSITIVE_FIXNUM <= min (SIZE_MAX, PTRDIFF_MAX) / 2.
Why?
This would be true if `size' were changed to ptrdiff_t (which would make
sense, indeed), but it's currently EMACS_INT, so it should always have
2 free bits.
Stefan
next prev parent reply other threads:[~2012-05-24 12:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-22 8:44 Proposal: immediate strings Dmitry Antipov
2012-05-22 20:51 ` Miles Bader
2012-05-22 22:13 ` Paul Eggert
2012-05-24 5:17 ` Stefan Monnier
2012-05-24 5:41 ` Ken Raeburn
2012-05-24 5:50 ` Miles Bader
2012-05-24 6:08 ` Paul Eggert
2012-05-24 7:14 ` Stefan Monnier
2012-05-24 7:52 ` Paul Eggert
2012-05-24 12:51 ` Stefan Monnier [this message]
2012-05-24 16:35 ` Paul Eggert
2012-05-25 6:43 ` Dmitry Antipov
2012-05-25 7:30 ` Paul Eggert
2012-05-28 11:32 ` Dmitry Antipov
2012-05-28 14:25 ` Stefan Monnier
2012-05-29 6:55 ` Dmitry Antipov
2012-05-29 7:38 ` Paul Eggert
2012-05-29 13:33 ` Dmitry Antipov
2012-05-29 15:24 ` Paul Eggert
2012-05-31 9:28 ` Dmitry Antipov
2012-05-31 16:34 ` Paul Eggert
2012-06-06 6:14 ` Dmitry Antipov
2012-06-06 6:41 ` Paul Eggert
2012-06-06 7:29 ` Dmitry Antipov
2012-06-06 15:14 ` Eli Zaretskii
2012-06-06 21:44 ` Paul Eggert
2012-07-04 8:27 ` Old topic(s) again [was: Re: Proposal: immediate strings] Dmitry Antipov
2012-07-04 13:08 ` Stefan Monnier
2012-07-04 19:32 ` Paul Eggert
2012-05-29 7:38 ` Proposal: immediate strings Andreas Schwab
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