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Re: [Chicken-users] Which API to use (llrb)?

From: Jörg F. Wittenberger
Subject: Re: [Chicken-users] Which API to use (llrb)?
Date: Fri, 30 Oct 2015 11:14:03 +0100
User-agent: Mozilla/5.0 (X11; Linux armv7l; rv:31.0) Gecko/20100101 Icedove/31.7.0

Am 29.10.2015 um 20:57 schrieb John Cowan:
> "Jörg F. Wittenberger" scripsit:
>> However when it comes to `fold` I'm not sure if it is better to follow
>> the srfi-1 argument order (combiner-initial-set) or the srfi-69 style
>> order (set-combiner-initial).
> SRFI-1 rules, SRFI-69 (in this respect) drools.  The in-progress SRFI
> 125 uses SRFI 1 order.

I haven't been aware of SRFI-125 nor srfi-114 so far.

Taking hints I'll simply allow both orderings for the -table interfaces
and go with the srfi-1 ordering for immutable trees.

Furthermore the llrb-treetype had already grown in the meantime to
include a key? argument.  Adding one more for the here unused hash
function make it equivalent to srfi-114's comparators.  Thus I better
use the latter.

John, does a chicken implementation already exist?



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