ch1_mpi 1
ch1_mpi 2 * Modified by No Such Labs. (C) 2015. See README.
ch1_mpi 3 *
ch1_mpi 4 * This file was originally part of Gnu Privacy Guard (GPG), ver. 1.4.10,
ch1_mpi 5 * SHA256(gnupg-1.4.10.tar.gz):
ch1_mpi 6 * 0bfd74660a2f6cedcf7d8256db4a63c996ffebbcdc2cf54397bfb72878c5a85a
ch1_mpi 7 * (C) 1994-2005 Free Software Foundation, Inc.
ch1_mpi 8 *
ch1_mpi 9 * This program is free software: you can redistribute it and/or modify
ch1_mpi 10 * it under the terms of the GNU General Public License as published by
ch1_mpi 11 * the Free Software Foundation, either version 3 of the License, or
ch1_mpi 12 * (at your option) any later version.
ch1_mpi 13 *
ch1_mpi 14 * This program is distributed in the hope that it will be useful,
ch1_mpi 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ch1_mpi 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
ch1_mpi 17 * GNU General Public License for more details.
ch1_mpi 18 *
ch1_mpi 19 * You should have received a copy of the GNU General Public License
ch1_mpi 20 * along with this program. If not, see <http:
ch1_mpi 21 */
ch1_mpi 22
ch1_mpi 23 #include <stdio.h>
ch1_mpi 24 #include <stdlib.h>
ch1_mpi 25
ch1_mpi 26 #include "knobs.h"
ch1_mpi 27 #include "mpi-internal.h"
ch1_mpi 28
ch1_mpi 29
ch1_mpi 30 * Compare OP1_PTR/OP1_SIZE with OP2_PTR/OP2_SIZE.
ch1_mpi 31 * There are no restrictions on the relative sizes of
ch1_mpi 32 * the two arguments.
ch1_mpi 33 * Return 1 if OP1 > OP2, 0 if they are equal, and -1 if OP1 < OP2.
ch1_mpi 34 */
ch1_mpi 35 int
ch1_mpi 36 mpihelp_cmp( mpi_ptr_t op1_ptr, mpi_ptr_t op2_ptr, mpi_size_t size )
ch1_mpi 37 {
ch1_mpi 38 mpi_size_t i;
ch1_mpi 39 mpi_limb_t op1_word, op2_word;
ch1_mpi 40
ch1_mpi 41 for( i = size - 1; i >= 0 ; i--) {
ch1_mpi 42 op1_word = op1_ptr[i];
ch1_mpi 43 op2_word = op2_ptr[i];
ch1_mpi 44 if( op1_word != op2_word )
ch1_mpi 45 goto diff;
ch1_mpi 46 }
ch1_mpi 47 return 0;
ch1_mpi 48
ch1_mpi 49 diff:
ch1_mpi 50
ch1_mpi 51 * op2_word - op2_word
ch1_mpi 52 * since that expression might give signed overflow. */
ch1_mpi 53 return (op1_word > op2_word) ? 1 : -1;
ch1_mpi 54 }
ch1_mpi 55