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