From: Mark H Weaver <mhw@netris.org>
To: David Kastrup <dak@gnu.org>
Cc: 17485@debbugs.gnu.org
Subject: bug#17485: [PATCH 2/3] Rewrite take-right, drop-right, drop-right!
Date: Tue, 03 Jun 2014 23:45:54 -0400 [thread overview]
Message-ID: <87sinltk0d.fsf@yeeloong.lan> (raw)
In-Reply-To: <1401821778-19972-2-git-send-email-dak@gnu.org> (David Kastrup's message of "Tue, 3 Jun 2014 20:56:17 +0200")
David Kastrup <dak@gnu.org> writes:
> * module/srfi/srfi-1.scm (take-right, drop-right, drop-right!): The
> definitions tended to be overly complicate and/or rely on pushing
> material on the VM stack, detrimental to scalability for Guile 2.0 and
> also worse for performance.
>
> The changed definitions lead to different, more accurate exceptions
> being raised. They rely on length+ returning the length of dotted
> lists, behavior that is not specified by the SRFI-1 definition but
> available in GUILE.
I forgot to mention that, again, the commit log should not contain
rationales, but merely summarize the changes made.
Thanks,
Mark
next prev parent reply other threads:[~2014-06-04 3:45 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-05-13 10:47 bug#17485: (srfi srfi-1) reduce-right does not scale, version 2.0.9 David Kastrup
2014-06-01 23:41 ` Mark H Weaver
2014-06-02 7:59 ` David Kastrup
2014-06-03 18:56 ` bug#17485: [PATCH 1/3] Let length+ return the length of dotted lists rather than #f David Kastrup
2014-06-03 18:56 ` bug#17485: [PATCH 2/3] Rewrite take-right, drop-right, drop-right! David Kastrup
2014-06-04 3:29 ` Mark H Weaver
2014-06-04 3:45 ` Mark H Weaver [this message]
2014-09-20 14:56 ` Mark H Weaver
2014-09-20 15:15 ` David Kastrup
2014-09-22 17:15 ` Mark H Weaver
2014-09-22 18:40 ` David Kastrup
2014-06-03 18:56 ` bug#17485: [PATCH 3/3] Reimplement reduce-right in srfi-1 David Kastrup
2014-06-04 3:30 ` Mark H Weaver
2014-06-04 3:42 ` bug#17485: [PATCH 1/3] Let length+ return the length of dotted lists rather than #f Mark H Weaver
2014-06-04 4:57 ` David Kastrup
2014-06-04 10:09 ` David Kastrup
2014-06-05 13:57 ` David Kastrup
2016-06-21 14:42 ` bug#17485: (srfi srfi-1) reduce-right does not scale, version 2.0.9 Andy Wingo
2016-06-21 15:31 ` David Kastrup
2016-07-12 7:07 ` Andy Wingo
2016-07-12 7:43 ` bug#17485: Ugh, well David Kastrup
2016-07-12 13:54 ` Andy Wingo
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