/security/nss/lib/freebl/mpi/tests/mptest-3.c

http://github.com/zpao/v8monkey · C · 131 lines · 69 code · 21 blank · 41 comment · 4 complexity · fe68cc377beb049f5ac579173f201c2d MD5 · raw file

  1. /*
  2. * Simple test driver for MPI library
  3. *
  4. * Test 3: Multiplication, division, and exponentiation test
  5. *
  6. * ***** BEGIN LICENSE BLOCK *****
  7. * Version: MPL 1.1/GPL 2.0/LGPL 2.1
  8. *
  9. * The contents of this file are subject to the Mozilla Public License Version
  10. * 1.1 (the "License"); you may not use this file except in compliance with
  11. * the License. You may obtain a copy of the License at
  12. * http://www.mozilla.org/MPL/
  13. *
  14. * Software distributed under the License is distributed on an "AS IS" basis,
  15. * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
  16. * for the specific language governing rights and limitations under the
  17. * License.
  18. *
  19. * The Original Code is the MPI Arbitrary Precision Integer Arithmetic library.
  20. *
  21. * The Initial Developer of the Original Code is
  22. * Michael J. Fromberger.
  23. * Portions created by the Initial Developer are Copyright (C) 1998
  24. * the Initial Developer. All Rights Reserved.
  25. *
  26. * Contributor(s):
  27. *
  28. * Alternatively, the contents of this file may be used under the terms of
  29. * either the GNU General Public License Version 2 or later (the "GPL"), or
  30. * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
  31. * in which case the provisions of the GPL or the LGPL are applicable instead
  32. * of those above. If you wish to allow use of your version of this file only
  33. * under the terms of either the GPL or the LGPL, and not to allow others to
  34. * use your version of this file under the terms of the MPL, indicate your
  35. * decision by deleting the provisions above and replace them with the notice
  36. * and other provisions required by the GPL or the LGPL. If you do not delete
  37. * the provisions above, a recipient may use your version of this file under
  38. * the terms of any one of the MPL, the GPL or the LGPL.
  39. *
  40. * ***** END LICENSE BLOCK ***** */
  41. /* $Id: mptest-3.c,v 1.4 2004/04/27 23:04:37 gerv%gerv.net Exp $ */
  42. #include <stdio.h>
  43. #include <stdlib.h>
  44. #include <string.h>
  45. #include <ctype.h>
  46. #include <limits.h>
  47. #include <time.h>
  48. #include "mpi.h"
  49. #define SQRT 1 /* define nonzero to get square-root test */
  50. #define EXPT 0 /* define nonzero to get exponentiate test */
  51. int main(int argc, char *argv[])
  52. {
  53. int ix;
  54. mp_int a, b, c, d;
  55. mp_digit r;
  56. mp_err res;
  57. if(argc < 3) {
  58. fprintf(stderr, "Usage: %s <a> <b>\n", argv[0]);
  59. return 1;
  60. }
  61. printf("Test 3: Multiplication and division\n\n");
  62. srand(time(NULL));
  63. mp_init(&a);
  64. mp_init(&b);
  65. mp_read_variable_radix(&a, argv[1], 10);
  66. mp_read_variable_radix(&b, argv[2], 10);
  67. printf("a = "); mp_print(&a, stdout); fputc('\n', stdout);
  68. printf("b = "); mp_print(&b, stdout); fputc('\n', stdout);
  69. mp_init(&c);
  70. printf("\nc = a * b\n");
  71. mp_mul(&a, &b, &c);
  72. printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
  73. printf("\nc = b * 32523\n");
  74. mp_mul_d(&b, 32523, &c);
  75. printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
  76. mp_init(&d);
  77. printf("\nc = a / b, d = a mod b\n");
  78. mp_div(&a, &b, &c, &d);
  79. printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
  80. printf("d = "); mp_print(&d, stdout); fputc('\n', stdout);
  81. ix = rand() % 256;
  82. printf("\nc = a / %d, r = a mod %d\n", ix, ix);
  83. mp_div_d(&a, (mp_digit)ix, &c, &r);
  84. printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
  85. printf("r = %04X\n", r);
  86. #if EXPT
  87. printf("\nc = a ** b\n");
  88. mp_expt(&a, &b, &c);
  89. printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
  90. #endif
  91. ix = rand() % 256;
  92. printf("\nc = 2^%d\n", ix);
  93. mp_2expt(&c, ix);
  94. printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
  95. #if SQRT
  96. printf("\nc = sqrt(a)\n");
  97. if((res = mp_sqrt(&a, &c)) != MP_OKAY) {
  98. printf("mp_sqrt: %s\n", mp_strerror(res));
  99. } else {
  100. printf("c = "); mp_print(&c, stdout); fputc('\n', stdout);
  101. mp_sqr(&c, &c);
  102. printf("c^2 = "); mp_print(&c, stdout); fputc('\n', stdout);
  103. }
  104. #endif
  105. mp_clear(&d);
  106. mp_clear(&c);
  107. mp_clear(&b);
  108. mp_clear(&a);
  109. return 0;
  110. }