3 * $Id: mp-misc.c,v 1.4 2004/04/08 01:36:15 mdw Exp $
5 * Miscellaneous multiprecision support functions
7 * (c) 1999 Straylight/Edgeware
10 /*----- Licensing notice --------------------------------------------------*
12 * This file is part of Catacomb.
14 * Catacomb is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU Library General Public License as
16 * published by the Free Software Foundation; either version 2 of the
17 * License, or (at your option) any later version.
19 * Catacomb is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU Library General Public License for more details.
24 * You should have received a copy of the GNU Library General Public
25 * License along with Catacomb; if not, write to the Free
26 * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
30 /*----- Header files ------------------------------------------------------*/
34 /*----- Basic manipulation ------------------------------------------------*/
36 /* --- @mp_shrink@ --- *
38 * Arguments: @mp *m@ = pointer to a multiprecision integer
42 * Use: Reduces the recorded length of an integer. This doesn't
43 * reduce the amount of memory used, although it can improve
44 * performance a bit. To reduce memory, use @mp_minimize@
45 * instead. This can't change the value of an integer, and is
46 * therefore safe to use even when there are multiple
50 void mp_shrink(mp *m) { MP_SHRINK(m); }
52 /* --- @mp_minimize@ --- *
54 * Arguments: @mp *m@ = pointer to a multiprecision integer
58 * Use: Reduces the amount of memory an integer uses. It's best to
59 * do this to numbers which aren't going to change in the
63 void mp_minimize(mp *m)
66 MP_RESIZE(m, MP_LEN(m));
69 /*----- Bit scanning ------------------------------------------------------*/
71 /* --- @mp_scan@ --- *
73 * Arguments: @mpscan *sc@ = pointer to bitscanner block
74 * @const mp *m@ = pointer to a multiprecision integer
78 * Use: Initializes a bitscanner on a multiprecision integer.
81 void mp_scan(mpscan *sc, const mp *m) { MP_SCAN(sc, m); }
83 /* --- @mp_scan@ --- *
85 * Arguments: @mpscan *sc@ = pointer to bitscanner block
86 * @const mp *m@ = pointer to a multiprecision integer
90 * Use: Initializes a reverse bitscanner on a multiprecision
94 void mp_rscan(mpscan *sc, const mp *m) { MP_RSCAN(sc, m); }
96 /*----- That's all, folks -------------------------------------------------*/