From: Joris van der Hoeven <TeXmacs@math.u-psud.fr>
Subject: Efficiency and flexibility of hash-tables
Date: Sat, 8 Feb 2003 12:00:03 +0100 (MET) [thread overview]
Message-ID: <Pine.GSO.3.96.1030208115500.22945A-100000@anh> (raw)
Hi,
When declaring a hash table using
(define H (make-hash-table 100))
does this mean that the number of slots will *always* remain 100?
I am frequently dealing with hash tables where I do not
have a reasonable estimation of number of entires in advance.
In TeXmacs, I therefore implemented a hash table type which
doubles the number of slots each time that the number of entries
becomes larger than a constant times the number of slots
(and divides by two the number of slots when the number of
entries becomes smaller than a constant times the number of slots).
Has a similar system been implemented in (an extension of) guile?
Thanks for your help, Joris
-----------------------------------------------------------
Joris van der Hoeven <vdhoeven@texmacs.org>
http://www.texmacs.org: GNU TeXmacs scientific text editor
http://www.math.u-psud.fr/~vdhoeven: personal homepage
-----------------------------------------------------------
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next reply other threads:[~2003-02-08 11:00 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-02-08 11:00 Joris van der Hoeven [this message]
2003-02-08 13:57 ` Efficiency and flexibility of hash-tables Roland Orre
2003-02-08 14:14 ` Joris van der Hoeven
2003-02-08 14:55 ` Roland Orre
2003-02-08 15:14 ` Joris van der Hoeven
2003-02-08 15:31 ` Mikael Djurfeldt
2003-02-11 11:14 ` Joris van der Hoeven
2003-02-11 11:28 ` Joris van der Hoeven
2003-02-11 12:50 ` Mikael Djurfeldt
2003-02-08 15:44 ` Roland Orre
2003-02-10 9:55 ` Andreas Rottmann
2003-02-10 14:24 ` Greg Troxel
2003-02-10 15:00 ` Roland Orre
2003-02-10 16:52 ` Mikael Djurfeldt
2003-02-10 17:09 ` Roland Orre
2003-02-10 17:11 ` Mikael Djurfeldt
2003-02-11 13:59 ` Resizing hash tables in Guile Mikael Djurfeldt
2003-02-11 17:34 ` Roland Orre
2003-02-12 11:41 ` Marius Vollmer
2003-02-12 16:10 ` Marius Vollmer
2003-02-12 17:53 ` Mikael Djurfeldt
2003-02-12 20:17 ` Roland Orre
2003-02-13 9:35 ` Mikael Djurfeldt
2003-02-13 13:55 ` Harvey J. Stein
2003-02-13 14:24 ` Joris van der Hoeven
2003-02-13 18:30 ` Harvey J. Stein
2003-02-13 20:02 ` Paul Jarc
2003-02-13 9:52 ` Joris van der Hoeven
2003-02-12 20:55 ` Rob Browning
2003-02-13 10:43 ` Mikael Djurfeldt
2003-02-12 20:47 ` Efficiency and flexibility of hash-tables Paul Jarc
2003-02-12 21:58 ` Roland Orre
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