From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Daniel Colascione <dancol@dancol.org>
Cc: Emacs development discussions <emacs-devel@gnu.org>
Subject: Re: Set operations on bool-vectors
Date: Fri, 20 Sep 2013 21:57:04 -0400 [thread overview]
Message-ID: <jwv8uyrc59w.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <523CD363.6020400@dancol.org> (Daniel Colascione's message of "Fri, 20 Sep 2013 15:59:47 -0700")
> I've implemented built-in set operations on bool vectors.
Thanks. Looks good.
> According to my benchmarks, these operations are about 1,000 times
> faster than the compiled elisp equivalents.
I'd expect no less.
> === modified file 'src/alloc.c'
> --- src/alloc.c 2013-09-04 22:34:04 +0000
> +++ src/alloc.c 2013-09-19 22:24:27 +0000
> @@ -2003,6 +2003,29 @@
> return val;
> }
Could you describe the intention of the changes in alloc.c (basically,
provide ChangeLog entries)?
> + doc: /* Compute A = B ^ C, bitwise exclusive or.
Why not make it C = A ^ B and then make C optional?
Same for other similar functions: make the destination argument optional.
Stefan
next prev parent reply other threads:[~2013-09-21 1:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-20 22:59 Set operations on bool-vectors Daniel Colascione
2013-09-21 1:57 ` Stefan Monnier [this message]
2013-09-21 2:44 ` Daniel Colascione
2013-09-21 15:51 ` Stefan Monnier
2013-09-21 2:26 ` Dmitry Antipov
2013-09-21 2:49 ` Daniel Colascione
2013-09-21 7:16 ` Eli Zaretskii
2013-09-21 7:43 ` Daniel Colascione
2013-09-21 7:36 ` Andreas Schwab
2013-09-21 7:38 ` Daniel Colascione
2013-09-21 8:35 ` Andreas Schwab
2013-09-21 8:49 ` Daniel Colascione
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