aa9bc17601
BMakefiles and other bits will follow. Requested by: Andrey Chernov Made world by: Chuck Robey
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* mpz_popcount(mpz_ptr op) -- Population count of OP. If the operand is
|
|
negative, return ~0 (a novel representation of infinity).
|
|
|
|
Copyright (C) 1994, 1996 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 Library General Public License as published by
|
|
the Free Software Foundation; either version 2 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 Library General Public
|
|
License for more details.
|
|
|
|
You should have received a copy of the GNU Library General Public License
|
|
along with the GNU MP Library; see the file COPYING.LIB. If not, write to
|
|
the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
|
|
MA 02111-1307, USA. */
|
|
|
|
#include "gmp.h"
|
|
#include "gmp-impl.h"
|
|
|
|
unsigned long int
|
|
#if __STDC__
|
|
mpz_popcount (mpz_srcptr u)
|
|
#else
|
|
mpz_popcount (u)
|
|
mpz_srcptr u;
|
|
#endif
|
|
{
|
|
mp_size_t usize;
|
|
|
|
usize = u->_mp_size;
|
|
|
|
if ((usize) < 0)
|
|
return ~ (unsigned long int) 0;
|
|
|
|
return mpn_popcount (u->_mp_d, usize);
|
|
}
|