diff options
Diffstat (limited to 'security/nss/lib/freebl/mpi/tests/mptest-5a.c')
-rw-r--r-- | security/nss/lib/freebl/mpi/tests/mptest-5a.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/security/nss/lib/freebl/mpi/tests/mptest-5a.c b/security/nss/lib/freebl/mpi/tests/mptest-5a.c deleted file mode 100644 index c410a6a843..0000000000 --- a/security/nss/lib/freebl/mpi/tests/mptest-5a.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * Simple test driver for MPI library - * - * Test 5a: Greatest common divisor speed test, binary vs. Euclid - * - * This Source Code Form is subject to the terms of the Mozilla Public - * License, v. 2.0. If a copy of the MPL was not distributed with this - * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <ctype.h> -#include <limits.h> -#include <time.h> - -#include <sys/time.h> - -#include "mpi.h" -#include "mpprime.h" - -typedef struct { - unsigned int sec; - unsigned int usec; -} instant_t; - -instant_t -now(void) -{ - struct timeval clk; - instant_t res; - - res.sec = res.usec = 0; - - if (gettimeofday(&clk, NULL) != 0) - return res; - - res.sec = clk.tv_sec; - res.usec = clk.tv_usec; - - return res; -} - -#define PRECISION 16 - -int -main(int argc, char *argv[]) -{ - int ix, num, prec = PRECISION; - mp_int a, b, c, d; - instant_t start, finish; - time_t seed; - unsigned int d1, d2; - - seed = time(NULL); - - if (argc < 2) { - fprintf(stderr, "Usage: %s <num-tests>\n", argv[0]); - return 1; - } - - if ((num = atoi(argv[1])) < 0) - num = -num; - - printf("Test 5a: Euclid vs. Binary, a GCD speed test\n\n" - "Number of tests: %d\n" - "Precision: %d digits\n\n", - num, prec); - - mp_init_size(&a, prec); - mp_init_size(&b, prec); - mp_init(&c); - mp_init(&d); - - printf("Verifying accuracy ... \n"); - srand((unsigned int)seed); - for (ix = 0; ix < num; ix++) { - mpp_random_size(&a, prec); - mpp_random_size(&b, prec); - - mp_gcd(&a, &b, &c); - mp_bgcd(&a, &b, &d); - - if (mp_cmp(&c, &d) != 0) { - printf("Error! Results not accurate:\n"); - printf("a = "); - mp_print(&a, stdout); - fputc('\n', stdout); - printf("b = "); - mp_print(&b, stdout); - fputc('\n', stdout); - printf("c = "); - mp_print(&c, stdout); - fputc('\n', stdout); - printf("d = "); - mp_print(&d, stdout); - fputc('\n', stdout); - - mp_clear(&a); - mp_clear(&b); - mp_clear(&c); - mp_clear(&d); - return 1; - } - } - mp_clear(&d); - printf("Accuracy confirmed for the %d test samples\n", num); - - printf("Testing Euclid ... \n"); - srand((unsigned int)seed); - start = now(); - for (ix = 0; ix < num; ix++) { - mpp_random_size(&a, prec); - mpp_random_size(&b, prec); - mp_gcd(&a, &b, &c); - } - finish = now(); - - d1 = (finish.sec - start.sec) * 1000000; - d1 -= start.usec; - d1 += finish.usec; - - printf("Testing binary ... \n"); - srand((unsigned int)seed); - start = now(); - for (ix = 0; ix < num; ix++) { - mpp_random_size(&a, prec); - mpp_random_size(&b, prec); - mp_bgcd(&a, &b, &c); - } - finish = now(); - - d2 = (finish.sec - start.sec) * 1000000; - d2 -= start.usec; - d2 += finish.usec; - - printf("Euclidean algorithm time: %u usec\n", d1); - printf("Binary algorithm time: %u usec\n", d2); - printf("Improvement: %.2f%%\n", - (1.0 - ((double)d2 / (double)d1)) * 100.0); - - mp_clear(&c); - mp_clear(&b); - mp_clear(&a); - - return 0; -} |