diff options
Diffstat (limited to 'nss/lib/freebl/mpi/tests/mptest-3a.c')
| -rw-r--r-- | nss/lib/freebl/mpi/tests/mptest-3a.c | 188 |
1 files changed, 100 insertions, 88 deletions
diff --git a/nss/lib/freebl/mpi/tests/mptest-3a.c b/nss/lib/freebl/mpi/tests/mptest-3a.c index c496aa6..c6cea70 100644 --- a/nss/lib/freebl/mpi/tests/mptest-3a.c +++ b/nss/lib/freebl/mpi/tests/mptest-3a.c @@ -18,94 +18,106 @@ #include "mpi.h" #include "mpprime.h" -int main(int argc, char *argv[]) +int +main(int argc, char *argv[]) { - int ix, num, prec = 8; - double d1, d2; - clock_t start, finish; - time_t seed; - mp_int a, c, d; - - seed = time(NULL); - - if(argc < 2) { - fprintf(stderr, "Usage: %s <num-tests> [<precision>]\n", argv[0]); - return 1; - } - - if((num = atoi(argv[1])) < 0) - num = -num; - - if(!num) { - fprintf(stderr, "%s: must perform at least 1 test\n", argv[0]); - return 1; - } - - if(argc > 2) { - if((prec = atoi(argv[2])) <= 0) - prec = 8; - else - prec = (prec + (DIGIT_BIT - 1)) / DIGIT_BIT; - } - - printf("Test 3a: Multiplication vs squaring timing test\n" - "Precision: %d digits (%u bits)\n" - "# of tests: %d\n\n", prec, prec * DIGIT_BIT, num); - - mp_init_size(&a, 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); - mp_mul(&a, &a, &c); - mp_sqr(&a, &d); - - if(mp_cmp(&c, &d) != 0) { - printf("Error! Results not accurate:\n"); - printf("a = "); mp_print(&a, stdout); fputc('\n', stdout); - printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); - printf("d = "); mp_print(&d, stdout); fputc('\n', stdout); - mp_sub(&c, &d, &d); - printf("dif "); mp_print(&d, stdout); fputc('\n', stdout); - mp_clear(&c); mp_clear(&d); - mp_clear(&a); - return 1; + int ix, num, prec = 8; + double d1, d2; + clock_t start, finish; + time_t seed; + mp_int a, c, d; + + seed = time(NULL); + + if (argc < 2) { + fprintf(stderr, "Usage: %s <num-tests> [<precision>]\n", argv[0]); + return 1; + } + + if ((num = atoi(argv[1])) < 0) + num = -num; + + if (!num) { + fprintf(stderr, "%s: must perform at least 1 test\n", argv[0]); + return 1; + } + + if (argc > 2) { + if ((prec = atoi(argv[2])) <= 0) + prec = 8; + else + prec = (prec + (DIGIT_BIT - 1)) / DIGIT_BIT; + } + + printf("Test 3a: Multiplication vs squaring timing test\n" + "Precision: %d digits (%u bits)\n" + "# of tests: %d\n\n", + prec, prec * DIGIT_BIT, num); + + mp_init_size(&a, 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); + mp_mul(&a, &a, &c); + mp_sqr(&a, &d); + + if (mp_cmp(&c, &d) != 0) { + printf("Error! Results not accurate:\n"); + printf("a = "); + mp_print(&a, stdout); + fputc('\n', stdout); + printf("c = "); + mp_print(&c, stdout); + fputc('\n', stdout); + printf("d = "); + mp_print(&d, stdout); + fputc('\n', stdout); + mp_sub(&c, &d, &d); + printf("dif "); + mp_print(&d, stdout); + fputc('\n', stdout); + mp_clear(&c); + mp_clear(&d); + mp_clear(&a); + return 1; + } } - } - printf("Accuracy is confirmed for the %d test samples\n", num); - mp_clear(&d); - - printf("Testing squaring ... \n"); - srand((unsigned int)seed); - start = clock(); - for(ix = 0; ix < num; ix++) { - mpp_random_size(&a, prec); - mp_sqr(&a, &c); - } - finish = clock(); - - d2 = (double)(finish - start) / CLOCKS_PER_SEC; - - printf("Testing multiplication ... \n"); - srand((unsigned int)seed); - start = clock(); - for(ix = 0; ix < num; ix++) { - mpp_random(&a); - mp_mul(&a, &a, &c); - } - finish = clock(); - - d1 = (double)(finish - start) / CLOCKS_PER_SEC; - - printf("Multiplication time: %.3f sec (%.3f each)\n", d1, d1 / num); - printf("Squaring time: %.3f sec (%.3f each)\n", d2, d2 / num); - printf("Improvement: %.2f%%\n", (1.0 - (d2 / d1)) * 100.0); - - mp_clear(&c); - mp_clear(&a); - - return 0; + printf("Accuracy is confirmed for the %d test samples\n", num); + mp_clear(&d); + + printf("Testing squaring ... \n"); + srand((unsigned int)seed); + start = clock(); + for (ix = 0; ix < num; ix++) { + mpp_random_size(&a, prec); + mp_sqr(&a, &c); + } + finish = clock(); + + d2 = (double)(finish - start) / CLOCKS_PER_SEC; + + printf("Testing multiplication ... \n"); + srand((unsigned int)seed); + start = clock(); + for (ix = 0; ix < num; ix++) { + mpp_random(&a); + mp_mul(&a, &a, &c); + } + finish = clock(); + + d1 = (double)(finish - start) / CLOCKS_PER_SEC; + + printf("Multiplication time: %.3f sec (%.3f each)\n", d1, d1 / num); + printf("Squaring time: %.3f sec (%.3f each)\n", d2, d2 / num); + printf("Improvement: %.2f%%\n", (1.0 - (d2 / d1)) * 100.0); + + mp_clear(&c); + mp_clear(&a); + + return 0; } |