3 * $Id: mp-misc.c,v 1.2 2000/06/17 11:45:09 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 /*----- Revision history --------------------------------------------------*
33 * Revision 1.2 2000/06/17 11:45:09 mdw
34 * Major memory management overhaul. Added arena support. Use the secure
35 * arena for secret integers. Replace and improve the MP management macros
36 * (e.g., replace MP_MODIFY by MP_DEST).
38 * Revision 1.1 1999/11/17 18:02:16 mdw
39 * New multiprecision integer arithmetic suite.
43 /*----- Header files ------------------------------------------------------*/
47 /*----- Basic manipulation ------------------------------------------------*/
49 /* --- @mp_shrink@ --- *
51 * Arguments: @mp *m@ = pointer to a multiprecision integer
55 * Use: Reduces the recorded length of an integer. This doesn't
56 * reduce the amount of memory used, although it can improve
57 * performance a bit. To reduce memory, use @mp_minimize@
58 * instead. This can't change the value of an integer, and is
59 * therefore safe to use even when there are multiple
63 void mp_shrink(mp
*m
) { MP_SHRINK(m
); }
65 /* --- @mp_minimize@ --- *
67 * Arguments: @mp *m@ = pointer to a multiprecision integer
71 * Use: Reduces the amount of memory an integer uses. It's best to
72 * do this to numbers which aren't going to change in the
76 void mp_minimize(mp
*m
)
79 MP_RESIZE(m
, MP_LEN(m
));
82 /*----- Bit scanning ------------------------------------------------------*/
84 /* --- @mp_scan@ --- *
86 * Arguments: @mpscan *sc@ = pointer to bitscanner block
87 * @const mp *m@ = pointer to a multiprecision integer
91 * Use: Initializes a bitscanner on a multiprecision integer.
94 void mp_scan(mpscan
*sc
, const mp
*m
) { MP_SCAN(sc
, m
); }
96 /*----- That's all, folks -------------------------------------------------*/