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/*
* Simple test driver for MPI library
*
* Test 3: Multiplication, division, and exponentiation test
*
* 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 Michael J. Fromberger are
* Copyright (C) 1998, 1999, 2000 Michael J. Fromberger.
* All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the
* terms of the GNU General Public License Version 2 or later (the
* "GPL"), in which case the provisions of the GPL are applicable
* instead of those above. If you wish to allow use of your
* version of this file only under the terms of the GPL and not to
* allow others to use your version of this file under the MPL,
* indicate your decision by deleting the provisions above and
* replace them with the notice and other provisions required by
* the GPL. If you do not delete the provisions above, a recipient
* may use your version of this file under either the MPL or the GPL.
*
* $Id$
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <limits.h>
#include <time.h>
#include "mpi.h"
#define SQRT 1 /* define nonzero to get square-root test */
#define EXPT 0 /* define nonzero to get exponentiate test */
int main(int argc, char *argv[])
{
int ix;
mp_int a, b, c, d;
mp_digit r;
mp_err res;
if(argc < 3) {
fprintf(stderr, "Usage: %s <a> <b>\n", argv[0]);
return 1;
}
printf("Test 3: Multiplication and division\n\n");
srand(time(NULL));
mp_init(&a);
mp_init(&b);
mp_read_variable_radix(&a, argv[1], 10);
mp_read_variable_radix(&b, argv[2], 10);
printf("a = "); mp_print(&a, stdout); fputc('\n', stdout);
printf("b = "); mp_print(&b, stdout); fputc('\n', stdout);
mp_init(&c);
printf("\nc = a * b\n");
mp_mul(&a, &b, &c);
printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
printf("\nc = b * 32523\n");
mp_mul_d(&b, 32523, &c);
printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
mp_init(&d);
printf("\nc = a / b, d = a mod b\n");
mp_div(&a, &b, &c, &d);
printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
printf("d = "); mp_print(&d, stdout); fputc('\n', stdout);
ix = rand() % 256;
printf("\nc = a / %d, r = a mod %d\n", ix, ix);
mp_div_d(&a, (mp_digit)ix, &c, &r);
printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
printf("r = %04X\n", r);
#if EXPT
printf("\nc = a ** b\n");
mp_expt(&a, &b, &c);
printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
#endif
ix = rand() % 256;
printf("\nc = 2^%d\n", ix);
mp_2expt(&c, ix);
printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
#if SQRT
printf("\nc = sqrt(a)\n");
if((res = mp_sqrt(&a, &c)) != MP_OKAY) {
printf("mp_sqrt: %s\n", mp_strerror(res));
} else {
printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
mp_sqr(&c, &c);
printf("c^2 = "); mp_print(&c, stdout); fputc('\n', stdout);
}
#endif
mp_clear(&d);
mp_clear(&c);
mp_clear(&b);
mp_clear(&a);
return 0;
}
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