GNU Radio 3.7.2 C++ API
count_bits.h
Go to the documentation of this file.
1 /* -*- c++ -*- */
2 /*
3  * Copyright 2003,2013 Free Software Foundation, Inc.
4  *
5  * This file is part of GNU Radio
6  *
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 3, or (at your option)
10  * any later version.
11  *
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.
16  *
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.
21  */
22 
23 #ifndef _GR_COUNT_BITS_H_
24 #define _GR_COUNT_BITS_H_
25 
26 #include <gnuradio/blocks/api.h>
27 
28 namespace gr {
29  namespace blocks {
30 
31  //! return number of set bits in the low 8 bits of x
32  BLOCKS_API unsigned int count_bits8(unsigned int x);
33 
34  //! return number of set bits in the low 16 bits of x
35  BLOCKS_API unsigned int count_bits16(unsigned int x);
36 
37  //! return number of set bits in the low 32 bits of x
38  BLOCKS_API unsigned int count_bits32(unsigned int x);
39 
40  //! return number of set bits in a 64-bit word
41  BLOCKS_API unsigned int count_bits64(unsigned long long int x);
42 
43  } /* namespace blocks */
44 } /* namespace gr */
45 
46 #endif /* _GR_COUNT_BITS_H_ */
BLOCKS_API unsigned int count_bits32(unsigned int x)
return number of set bits in the low 32 bits of x
#define BLOCKS_API
Definition: gr-blocks/include/gnuradio/blocks/api.h:30
BLOCKS_API unsigned int count_bits8(unsigned int x)
return number of set bits in the low 8 bits of x
BLOCKS_API unsigned int count_bits64(unsigned long long int x)
return number of set bits in a 64-bit word
BLOCKS_API unsigned int count_bits16(unsigned int x)
return number of set bits in the low 16 bits of x