From: Neil Jerram <neil@ossau.uklinux.net>
To: Gregory Marton <gremio@mit.edu>, bug-guile@gnu.org
Subject: Re: [bug #22022] hashx-set! and -ref
Date: Thu, 17 Jan 2008 23:13:27 +0000 [thread overview]
Message-ID: <87d4s0cag8.fsf@ossau.uklinux.net> (raw)
In-Reply-To: <20080114-224004.sv59778.71865@savannah.gnu.org> (Gregory Marton's message of "Mon, 14 Jan 2008 22:40:06 +0000")
Gregory Marton <INVALID.NOREPLY@gnu.org> writes:
> As an enhancement request, it would be nice for the common case to be able to
> pass a hash-function argument and assoc to make-hash-table or to have a
> (make-hashx-table hash assoc [size]), and in either case to remember the hash
> function so that resize works correctly.
Last email on this topic for tonight...!
Note that anyone wanting to implement this "saner" interface can
straightforwardly do so in Scheme:
(define hash-table-hash-fn (make-object-property))
(define hash-table-assoc-fn (make-object-property))
(define (make-hashx-table hash assoc . args)
(let ((t (apply make-hash-table args)))
(set! (hash-table-hash-fn t) hash)
(set! (hash-table-assoc-fn t) assoc)
t))
(define (hashx-table-ref t key)
(hashx-ref (hash-table-hash-fn t) (hash-table-assoc-fn t) t key))
etc.
Regards,
Neil
next prev parent reply other threads:[~2008-01-17 23:13 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-14 22:40 [bug #22022] hashx-set! and -ref Gregory Marton
2008-01-17 21:52 ` Neil Jerram
2008-01-17 21:54 ` Gregory Marton
2008-01-17 23:02 ` Neil Jerram
2008-01-18 0:25 ` Gregory Marton
2008-01-17 21:57 ` Neil Jerram
2008-01-17 22:01 ` Gregory Marton
2008-01-17 22:45 ` Neil Jerram
2008-01-18 0:22 ` Gregory Marton
2008-01-29 22:28 ` Neil Jerram
2008-12-07 16:51 ` Neil Jerram
2008-01-17 23:13 ` Neil Jerram [this message]
2008-01-18 0:30 ` Gregory Marton
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