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comparison: security/nss/lib/freebl/mpi/tests/mptest-3.c
security/nss/lib/freebl/mpi/tests/mptest-3.c
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| -1:000000000000 | 0:3a0232df9ada |
|---|---|
| 1 /* | |
| 2 * Simple test driver for MPI library | |
| 3 * | |
| 4 * Test 3: Multiplication, division, and exponentiation test | |
| 5 * | |
| 6 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 7 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 8 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 9 | |
| 10 #include <stdio.h> | |
| 11 #include <stdlib.h> | |
| 12 #include <string.h> | |
| 13 #include <ctype.h> | |
| 14 #include <limits.h> | |
| 15 | |
| 16 #include <time.h> | |
| 17 | |
| 18 #include "mpi.h" | |
| 19 | |
| 20 #define SQRT 1 /* define nonzero to get square-root test */ | |
| 21 #define EXPT 0 /* define nonzero to get exponentiate test */ | |
| 22 | |
| 23 int main(int argc, char *argv[]) | |
| 24 { | |
| 25 int ix; | |
| 26 mp_int a, b, c, d; | |
| 27 mp_digit r; | |
| 28 mp_err res; | |
| 29 | |
| 30 if(argc < 3) { | |
| 31 fprintf(stderr, "Usage: %s <a> <b>\n", argv[0]); | |
| 32 return 1; | |
| 33 } | |
| 34 | |
| 35 printf("Test 3: Multiplication and division\n\n"); | |
| 36 srand(time(NULL)); | |
| 37 | |
| 38 mp_init(&a); | |
| 39 mp_init(&b); | |
| 40 | |
| 41 mp_read_variable_radix(&a, argv[1], 10); | |
| 42 mp_read_variable_radix(&b, argv[2], 10); | |
| 43 printf("a = "); mp_print(&a, stdout); fputc('\n', stdout); | |
| 44 printf("b = "); mp_print(&b, stdout); fputc('\n', stdout); | |
| 45 | |
| 46 mp_init(&c); | |
| 47 printf("\nc = a * b\n"); | |
| 48 | |
| 49 mp_mul(&a, &b, &c); | |
| 50 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 51 | |
| 52 printf("\nc = b * 32523\n"); | |
| 53 | |
| 54 mp_mul_d(&b, 32523, &c); | |
| 55 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 56 | |
| 57 mp_init(&d); | |
| 58 printf("\nc = a / b, d = a mod b\n"); | |
| 59 | |
| 60 mp_div(&a, &b, &c, &d); | |
| 61 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 62 printf("d = "); mp_print(&d, stdout); fputc('\n', stdout); | |
| 63 | |
| 64 ix = rand() % 256; | |
| 65 printf("\nc = a / %d, r = a mod %d\n", ix, ix); | |
| 66 mp_div_d(&a, (mp_digit)ix, &c, &r); | |
| 67 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 68 printf("r = %04X\n", r); | |
| 69 | |
| 70 #if EXPT | |
| 71 printf("\nc = a ** b\n"); | |
| 72 mp_expt(&a, &b, &c); | |
| 73 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 74 #endif | |
| 75 | |
| 76 ix = rand() % 256; | |
| 77 printf("\nc = 2^%d\n", ix); | |
| 78 mp_2expt(&c, ix); | |
| 79 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 80 | |
| 81 #if SQRT | |
| 82 printf("\nc = sqrt(a)\n"); | |
| 83 if((res = mp_sqrt(&a, &c)) != MP_OKAY) { | |
| 84 printf("mp_sqrt: %s\n", mp_strerror(res)); | |
| 85 } else { | |
| 86 printf("c = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 87 mp_sqr(&c, &c); | |
| 88 printf("c^2 = "); mp_print(&c, stdout); fputc('\n', stdout); | |
| 89 } | |
| 90 #endif | |
| 91 | |
| 92 mp_clear(&d); | |
| 93 mp_clear(&c); | |
| 94 mp_clear(&b); | |
| 95 mp_clear(&a); | |
| 96 | |
| 97 return 0; | |
| 98 } |
