f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Bitwise logical operations on MPI values
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * ***** BEGIN LICENSE BLOCK *****
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Version: MPL 1.1/GPL 2.0/LGPL 2.1
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * The contents of this file are subject to the Mozilla Public License Version
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * 1.1 (the "License"); you may not use this file except in compliance with
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * the License. You may obtain a copy of the License at
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Software distributed under the License is distributed on an "AS IS" basis,
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * for the specific language governing rights and limitations under the
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * The Initial Developer of the Original Code is
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Michael J. Fromberger.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Portions created by the Initial Developer are Copyright (C) 1998
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * the Initial Developer. All Rights Reserved.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Contributor(s):
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Alternatively, the contents of this file may be used under the terms of
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * either the GNU General Public License Version 2 or later (the "GPL"), or
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * in which case the provisions of the GPL or the LGPL are applicable instead
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * of those above. If you wish to allow use of your version of this file only
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * under the terms of either the GPL or the LGPL, and not to allow others to
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * use your version of this file under the terms of the MPL, indicate your
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * decision by deleting the provisions above and replace them with the notice
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * and other provisions required by the GPL or the LGPL. If you do not delete
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * the provisions above, a recipient may use your version of this file under
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * the terms of any one of the MPL, the GPL or the LGPL.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * ***** END LICENSE BLOCK ***** */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Use is subject to license terms.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers * Sun elects to use this software under the MPL license.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers#pragma ident "%Z%%M% %I% %E% SMI"
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers/* $Id: mplogic.h,v 1.7 2004/04/27 23:04:36 gerv%gerv.net Exp $ */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers The logical operations treat an mp_int as if it were a bit vector,
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers without regard to its sign (an mp_int is represented in a signed
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers magnitude format). Values are treated as if they had an infinite
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers string of zeros left of the most-significant bit.
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers/* Parity results */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers/* Bitwise functions */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_not(mp_int *a, mp_int *b); /* one's complement */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_and(mp_int *a, mp_int *b, mp_int *c); /* bitwise AND */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_or(mp_int *a, mp_int *b, mp_int *c); /* bitwise OR */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_xor(mp_int *a, mp_int *b, mp_int *c); /* bitwise XOR */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers/* Shift functions */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_rsh(const mp_int *a, mp_int *b, mp_digit d); /* right shift */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_lsh(const mp_int *a, mp_int *b, mp_digit d); /* left shift */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers/* Bit count and parity */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_num_set(mp_int *a, int *num); /* count set bits */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_num_clear(mp_int *a, int *num); /* count clear bits */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_parity(mp_int *a); /* determine parity */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers/* Get & Set the value of a bit */
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_set_bit(mp_int *a, mp_size bitNum, mp_size value);
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_get_bit(const mp_int *a, mp_size bitNum);
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowersmp_err mpl_get_bits(const mp_int *a, mp_size lsbNum, mp_size numBits);
f9fbec18f5b458b560ecf45d3db8e8bd56bf6942mcpowers#endif /* _MPLOGIC_H */