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Annotation of OpenXM_contrib/gmp/mpn/generic/hamdist.c, Revision 1.1.1.3

1.1.1.3 ! ohara       1: /* mpn_hamdist -- mpn hamming distance.
1.1       maekawa     2:
1.1.1.3 ! ohara       3: Copyright 1994, 1996, 2000, 2001 Free Software Foundation, Inc.
1.1       maekawa     4:
                      5: This file is part of the GNU MP Library.
                      6:
                      7: The GNU MP Library is free software; you can redistribute it and/or modify
1.1.1.2   maekawa     8: it under the terms of the GNU Lesser General Public License as published by
                      9: the Free Software Foundation; either version 2.1 of the License, or (at your
1.1       maekawa    10: option) any later version.
                     11:
                     12: The GNU MP Library is distributed in the hope that it will be useful, but
                     13: WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
1.1.1.2   maekawa    14: or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
1.1       maekawa    15: License for more details.
                     16:
1.1.1.2   maekawa    17: You should have received a copy of the GNU Lesser General Public License
1.1       maekawa    18: along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
                     19: the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
                     20: MA 02111-1307, USA. */
                     21:
                     22: #include "gmp.h"
                     23: #include "gmp-impl.h"
                     24:
                     25:
1.1.1.3 ! ohara      26: unsigned long
1.1       maekawa    27: mpn_hamdist (mp_srcptr up, mp_srcptr vp, mp_size_t size)
                     28: {
1.1.1.3 ! ohara      29:   unsigned long  result = 0;
        !            30:   unsigned long  n;
        !            31:
        !            32:   ASSERT (size >= 1);
1.1       maekawa    33:
1.1.1.3 ! ohara      34:   do {
        !            35:     popc_limb (n, *up++ ^ *vp++);
        !            36:     result += n;
        !            37:   } while (--size != 0);
1.1       maekawa    38:
1.1.1.3 ! ohara      39:   return result;
1.1       maekawa    40: }