3 * Copyright 2003 Free Software Foundation, Inc.
5 * This file is part of GNU Radio
7 * GNU Radio is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2, or (at your option)
12 * GNU Radio is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with GNU Radio; see the file COPYING. If not, write to
19 * the Free Software Foundation, Inc., 51 Franklin Street,
20 * Boston, MA 02110-1301, USA.
23 #ifndef _GR_COUNT_BITS_H_
24 #define _GR_COUNT_BITS_H_
26 unsigned int gr_count_bits8(unsigned int x); // return number of set bits in the low 8 bits of x
27 unsigned int gr_count_bits16(unsigned int x); // return number of set bits in the low 16 bits of x
28 unsigned int gr_count_bits32(unsigned int x); // return number of set bits in the low 32 bits of x
29 unsigned int gr_count_bits64(unsigned long long int x);
31 #endif /* _GR_COUNT_BITS_H_ */