source: trunk/j/src/org/armedbear/lisp/make-hash-table.lisp @ 5308

Last change on this file since 5308 was 5308, checked in by piso, 18 years ago

MAKE-HASH-TABLE: supply reasonable defaults for REHASH-SIZE and REHASH-THRESHOLD.

File size: 1.3 KB
RevLine 
[2460]1;;; make-hash-table.lisp
2;;;
3;;; Copyright (C) 2003 Peter Graves
[5308]4;;; $Id: make-hash-table.lisp,v 1.4 2004-01-01 18:24:03 piso Exp $
[2460]5;;;
6;;; This program is free software; you can redistribute it and/or
7;;; modify it under the terms of the GNU General Public License
8;;; as published by the Free Software Foundation; either version 2
9;;; of the License, or (at your option) any later version.
10;;;
11;;; This program is distributed in the hope that it will be useful,
12;;; but WITHOUT ANY WARRANTY; without even the implied warranty of
13;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14;;; GNU General Public License for more details.
15;;;
16;;; You should have received a copy of the GNU General Public License
17;;; along with this program; if not, write to the Free Software
18;;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19
[2710]20(in-package "SYSTEM")
[2460]21
[5308]22(defun make-hash-table (&key (test 'eql) (size 11) (rehash-size 1.5)
23           (rehash-threshold 0.75))
[2710]24  (setq test (coerce-to-function test))
[3738]25  (unless (and (integerp size) (>= size 0))
[2460]26    (error 'type-error "MAKE-HASH-TABLE: ~S is not a non-negative integer" size))
27  ;; %make-hash-table expects size to be a fixnum.
28  (when (> size array-dimension-limit)
29    (setq size array-dimension-limit))
30  (%make-hash-table test size rehash-size rehash-threshold))
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