From: "Eli Zaretskii" <eliz@is.elta.co.il>
Subject: Re: Reading portions of large files
Date: Sat, 11 Jan 2003 11:51:36 +0300 [thread overview]
Message-ID: <3405-Sat11Jan2003115136+0200-eliz@is.elta.co.il> (raw)
In-Reply-To: <x5of6olod6.fsf@lola.goethe.zz> (message from David Kastrup on 10 Jan 2003 21:51:49 +0100)
> From: David Kastrup <dak@gnu.org>
> Newsgroups: gnu.emacs.help
> Date: 10 Jan 2003 21:51:49 +0100
>
> BTW, would it be terribly complicated to extend the range of Lisp
> integers to 31bit?
It's not terribly hard, but IIRC the current consensus among the Emacs
maintainers is that it's not important enough to do that because
before long all machines will have 64-bit compilers.
Perhaps this should be discussed again on the developers' list.
> Integers don't need any garbage collection or tag bits per se.
They need to be distinguishable from other Lisp types, so their tag
bitfield cannot have an arbitrary bit pattern.
> Emacs has a most-positive-fixnum of 134217727, while XEmacs has
> 1073741823, more than 8 times as much. So it would appear to be
> possible in theory.
IIRC, the XEmacs way requires extensive changes in how Emacs works,
but I don't remember the details.
next prev parent reply other threads:[~2003-01-11 8:51 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.100.1042135372.21513.help-gnu-emacs@gnu.org>
2003-01-09 18:20 ` Reading portions of large files David Kastrup
2003-01-10 19:21 ` Eli Zaretskii
[not found] ` <mailman.153.1042230313.21513.help-gnu-emacs@gnu.org>
2003-01-10 20:51 ` David Kastrup
2003-01-11 8:51 ` Eli Zaretskii [this message]
[not found] ` <mailman.169.1042278925.21513.help-gnu-emacs@gnu.org>
2003-01-11 10:42 ` David Kastrup
2003-01-12 20:38 ` Stefan Monnier <foo@acm.com>
2003-01-13 7:40 ` Miles Bader
2003-01-13 7:42 ` Miles Bader
2003-01-13 7:55 ` David Kastrup
2003-01-13 8:05 ` Miles Bader
2003-01-20 7:50 ` Lee Sau Dan
2003-01-24 7:55 ` Mac
2003-01-27 14:44 ` Stefan Monnier <foo@acm.com>
2003-01-10 16:27 ` Eric Pement
2003-01-10 17:16 ` Brendan Halpin
2003-01-10 20:35 ` Benjamin Riefenstahl
2003-01-11 10:25 ` Klaus Berndl
2003-01-20 7:50 ` Lee Sau Dan
2003-01-20 12:46 ` Benjamin Riefenstahl
2003-01-20 7:50 ` Lee Sau Dan
2003-01-09 15:45 Gerald.Jean
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