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bug#17485: [PATCH 2/3] Rewrite take-right, drop-right, drop-right!
From: |
Mark H Weaver |
Subject: |
bug#17485: [PATCH 2/3] Rewrite take-right, drop-right, drop-right! |
Date: |
Tue, 03 Jun 2014 23:45:54 -0400 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/24.3 (gnu/linux) |
David Kastrup <address@hidden> 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