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Diff for /OpenXM_contrib/gmp/demos/Attic/factorize.c between version 1.1.1.2 and 1.1.1.3

version 1.1.1.2, 2000/09/09 14:13:19 version 1.1.1.3, 2003/08/25 16:06:03
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 /* Factoring with Pollard's rho method.  /* Factoring with Pollard's rho method.
   
    Copyright (C) 1995, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.  Copyright 1995, 1997, 1998, 1999, 2000, 2001, 2002 Free Software Foundation,
   Inc.
   
    This program is free software; you can redistribute it and/or modify it  This program is free software; you can redistribute it and/or modify it under
    under the terms of the GNU General Public License as published by the  the terms of the GNU General Public License as published by the Free Software
    Free Software Foundation; either version 2, or (at your option) any  Foundation; either version 2, or (at your option) any later version.
    later version.  
   
    This program is distributed in the hope that it will be useful, but  This program is distributed in the hope that it will be useful, but WITHOUT ANY
    WITHOUT ANY WARRANTY; without even the implied warranty of  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  PARTICULAR PURPOSE.  See the GNU General Public License for more details.
    General Public License for more details.  
   
    You should have received a copy of the GNU General Public License along  You should have received a copy of the GNU General Public License along with
    with this program; see the file COPYING.  If not, write to the Free  this program; see the file COPYING.  If not, write to the Free Software
    Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
    02111-1307, USA.  */  
   
 #include <stdlib.h>  #include <stdlib.h>
 #include <stdio.h>  #include <stdio.h>
Line 27  int flag_verbose = 0;
Line 25  int flag_verbose = 0;
   
 static unsigned add[] = {4, 2, 4, 2, 4, 6, 2, 6};  static unsigned add[] = {4, 2, 4, 2, 4, 6, 2, 6};
   
 #if defined (__hpux) || defined (__alpha)  || defined (__svr4__) || defined (__SVR4)  
 /* HPUX lacks random().  DEC OSF/1 1.2 random() returns a double.  */  
 long mrand48 ();  
 static long  
 random ()  
 {  
   return mrand48 ();  
 }  
 #else  
 /* Glibc stdlib.h has "int32_t random();" which, on i386 at least, conflicts  
    with a redeclaration as "long". */  
 #ifndef __GLIBC__  
 long random ();  
 #endif  
 #endif  
   
 void  void
 factor_using_division (mpz_t t, unsigned int limit)  factor_using_division (mpz_t t, unsigned int limit)
 {  {
Line 240  S4:
Line 222  S4:
       if (!mpz_probab_prime_p (g, 3))        if (!mpz_probab_prime_p (g, 3))
         {          {
           do            do
             a_int = random ();              {
                 mp_limb_t a_limb;
                 mpn_random (&a_limb, (mp_size_t) 1);
                 a_int = (int) a_limb;
               }
           while (a_int == -2 || a_int == 0);            while (a_int == -2 || a_int == 0);
   
           if (flag_verbose)            if (flag_verbose)
Line 285  factor (mpz_t t, unsigned long p)
Line 271  factor (mpz_t t, unsigned long p)
 {  {
   unsigned int division_limit;    unsigned int division_limit;
   
     if (mpz_sgn (t) == 0)
       return;
   
   /* Set the trial division limit according the size of t.  */    /* Set the trial division limit according the size of t.  */
   division_limit = mpz_sizeinbase (t, 2);    division_limit = mpz_sizeinbase (t, 2);
   if (division_limit > 1000)    if (division_limit > 1000)
Line 324  main (int argc, char *argv[])
Line 313  main (int argc, char *argv[])
       argc--;        argc--;
     }      }
   
   p = 0;    mpz_init (t);
   for (i = 1; i < argc; i++)    if (argc > 1)
     {      {
       if (!strncmp (argv[i], "-Mp", 3))        p = 0;
         for (i = 1; i < argc; i++)
         {          {
           p = atoi (argv[i] + 3);            if (!strncmp (argv[i], "-Mp", 3))
           mpz_init_set_ui (t, 1);              {
           mpz_mul_2exp (t, t, p);                p = atoi (argv[i] + 3);
           mpz_sub_ui (t, t, 1);                mpz_set_ui (t, 1);
                 mpz_mul_2exp (t, t, p);
                 mpz_sub_ui (t, t, 1);
               }
             else if (!strncmp (argv[i], "-2kp", 4))
               {
                 p = atoi (argv[i] + 4);
                 continue;
               }
             else
               {
                 mpz_set_str (t, argv[i], 0);
               }
   
             if (mpz_cmp_ui (t, 0) == 0)
               puts ("-");
             else
               {
                 factor (t, p);
                 puts ("");
               }
         }          }
       else if (!strncmp (argv[i], "-2kp", 4))      }
     else
       {
         for (;;)
         {          {
           p = atoi (argv[i] + 4);            mpz_inp_str (t, stdin, 0);
           continue;            if (feof (stdin))
         }              break;
       else            mpz_out_str (stdout, 10, t); printf (" = ");
         {            factor (t, 0);
           mpz_init_set_str (t, argv[i], 0);  
         }  
   
       if (mpz_cmp_ui (t, 0) == 0)  
         puts ("-");  
       else  
         {  
           factor (t, p);  
           puts ("");            puts ("");
         }          }
     }      }
   exit (0);  
 }  
   
 void    exit (0);
 dmp (mpz_t x)  
 {  
   mpz_out_str (stdout, 10, x);  
   puts ("");  
 }  }
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  Added in v.1.1.1.3
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