1  /* Test gmp_randinit_set.
       2  
       3  Copyright 2003 Free Software Foundation, Inc.
       4  
       5  This file is part of the GNU MP Library test suite.
       6  
       7  The GNU MP Library test suite is free software; you can redistribute it
       8  and/or modify it under the terms of the GNU General Public License as
       9  published by the Free Software Foundation; either version 3 of the License,
      10  or (at your option) any later version.
      11  
      12  The GNU MP Library test suite is distributed in the hope that it will be
      13  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
      14  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
      15  Public License for more details.
      16  
      17  You should have received a copy of the GNU General Public License along with
      18  the GNU MP Library test suite.  If not, see https://www.gnu.org/licenses/.  */
      19  
      20  #include <stdio.h>
      21  #include <stdlib.h>
      22  #include "gmp-impl.h"
      23  #include "tests.h"
      24  
      25  /* expect after a gmp_randinit_set that the new and old generators will
      26     produce the same sequence of numbers */
      27  void
      28  check_one (const char *name, gmp_randstate_ptr src)
      29  {
      30    gmp_randstate_t dst;
      31    mpz_t  sz, dz;
      32    int    i;
      33  
      34    gmp_randinit_set (dst, src);
      35    mpz_init (sz);
      36    mpz_init (dz);
      37  
      38    for (i = 0; i < 20; i++)
      39      {
      40        mpz_urandomb (sz, src, 123);
      41        mpz_urandomb (dz, dst, 123);
      42  
      43        if (mpz_cmp (sz, dz) != 0)
      44          {
      45            printf     ("gmp_randinit_set didn't duplicate randstate\n");
      46            printf     ("  algorithm: %s\n", name);
      47            gmp_printf ("  from src:  %#Zx\n", sz);
      48            gmp_printf ("  from dst:  %#Zx\n", dz);
      49            abort ();
      50          }
      51      }
      52  
      53    mpz_clear (sz);
      54    mpz_clear (dz);
      55    gmp_randclear (dst);
      56  }
      57  
      58  int
      59  main (int argc, char *argv[])
      60  {
      61    tests_start ();
      62  
      63    call_rand_algs (check_one);
      64  
      65    tests_end ();
      66    exit (0);
      67  }