[gforth] / gforth / random.fs

gforth: gforth/random.fs

1 :	pazsan	1.1	\ generates random numbers 12jan94py
2 :
3 :	anton	1.5	\ Copyright (C) 1995,2000,2003 Free Software Foundation, Inc.
4 :	anton	1.2
5 :			\ This file is part of Gforth.
6 :
7 :			\ Gforth is free software; you can redistribute it and/or
8 :			\ modify it under the terms of the GNU General Public License
9 :			\ as published by the Free Software Foundation; either version 2
10 :			\ of the License, or (at your option) any later version.
11 :
12 :			\ This program is distributed in the hope that it will be useful,
13 :			\ but WITHOUT ANY WARRANTY; without even the implied warranty of
14 :			\ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 :			\ GNU General Public License for more details.
16 :
17 :			\ You should have received a copy of the GNU General Public License
18 :			\ along with this program; if not, write to the Free Software
19 :	anton	1.3	\ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
20 :	anton	1.2
21 :	pazsan	1.1	Variable seed
22 :
23 :			$10450405 Constant generator
24 :
25 :			: rnd ( -- n ) seed @ generator um* drop 1+ dup seed ! ;
26 :
27 :			: random ( n -- 0..n-1 ) rnd um* nip ;