1  /*
       2  
       3  Copyright 2012, 2013 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 <limits.h>
      21  #include <stdlib.h>
      22  #include <stdio.h>
      23  
      24  #include "testutils.h"
      25  
      26  #define MAXBITS 400
      27  #define COUNT 10000
      28  
      29  void
      30  testlogops (int count)
      31  {
      32    int i;
      33    mpz_t a, b, res, ref;
      34    mp_bitcnt_t c;
      35  
      36    mpz_init (a);
      37    mpz_init (b);
      38    mpz_init (res);
      39    mpz_init (ref);
      40  
      41    for (i = 0; i < count; i++)
      42      {
      43        mini_random_op3 (OP_AND, MAXBITS, a, b, ref);
      44        mpz_and (res, a, b);
      45        if (mpz_cmp (res, ref))
      46  	{
      47  	  fprintf (stderr, "mpz_and failed:\n");
      48  	  dump ("a", a);
      49  	  dump ("b", b);
      50  	  dump ("r", res);
      51  	  dump ("ref", ref);
      52  	  abort ();
      53  	}
      54  
      55        mini_random_op3 (OP_IOR, MAXBITS, a, b, ref);
      56        mpz_ior (res, a, b);
      57        if (mpz_cmp (res, ref))
      58  	{
      59  	  fprintf (stderr, "mpz_ior failed:\n");
      60  	  dump ("a", a);
      61  	  dump ("b", b);
      62  	  dump ("r", res);
      63  	  dump ("ref", ref);
      64  	  abort ();
      65  	}
      66  
      67        mini_random_op3 (OP_XOR, MAXBITS, a, b, ref);
      68        mpz_xor (res, a, b);
      69        if (mpz_cmp (res, ref))
      70  	{
      71  	  fprintf (stderr, "mpz_xor failed:\n");
      72  	  dump ("a", a);
      73  	  dump ("b", b);
      74  	  dump ("r", res);
      75  	  dump ("ref", ref);
      76  	  abort ();
      77  	}
      78  
      79        if (i % 8) {
      80  	c = 0;
      81  	mpz_mul_2exp (res, res, i % 8);
      82        } else if (mpz_sgn (res) >= 0) {
      83  	c = mpz_odd_p (res) != 0;
      84  	mpz_tdiv_q_2exp (res, res, 1);
      85        } else {
      86  	c = (~ (mp_bitcnt_t) 0) - 3;
      87  	mpz_set_ui (res, 11 << ((i >> 3)%4)); /* set 3 bits */
      88        }
      89  
      90        if (mpz_popcount (res) + c != mpz_hamdist (a, b))
      91  	{
      92  	  fprintf (stderr, "mpz_popcount(r) + %lu and mpz_hamdist(a,b) differ:\n", c);
      93  	  dump ("a", a);
      94  	  dump ("b", b);
      95  	  dump ("r", res);
      96  	  fprintf (stderr, "mpz_popcount(r) = %lu:\n", mpz_popcount (res));
      97  	  fprintf (stderr, "mpz_hamdist(a,b) = %lu:\n", mpz_hamdist (a, b));
      98  	  abort ();
      99  	}
     100      }
     101    mpz_clear (a);
     102    mpz_clear (b);
     103    mpz_clear (res);
     104    mpz_clear (ref);
     105  }
     106  
     107  void
     108  testmain (int argc, char **argv)
     109  {
     110    testhalves (COUNT*2/3, testlogops);
     111    testlogops (COUNT/3);
     112  }