hamdist.c
上传用户:qaz666999
上传日期:2022-08-06
资源大小:2570k
文件大小:1k
- /* Cray mpn_hamdist -- hamming distance count.
- Copyright 2000 Free Software Foundation, Inc.
- This file is part of the GNU MP Library.
- The GNU MP Library is free software; you can redistribute it and/or modify
- it under the terms of the GNU Lesser General Public License as published by
- the Free Software Foundation; either version 3 of the License, or (at your
- option) any later version.
- The GNU MP Library is distributed in the hope that it will be useful, but
- WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- License for more details.
- You should have received a copy of the GNU Lesser General Public License
- along with the GNU MP Library. If not, see http://www.gnu.org/licenses/. */
- #include <intrinsics.h>
- #include "gmp.h"
- #include "gmp-impl.h"
- unsigned long int
- mpn_hamdist (mp_srcptr p1, mp_srcptr p2, mp_size_t n)
- {
- unsigned long int result = 0;
- mp_size_t i;
- for (i = 0; i < n; i++)
- result += _popcnt (p1[i] ^ p2[i]);
- return result;
- }