GNU Radio 2.x: gr_count_bits.h Source File

00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2003 Free Software Foundation, Inc.
00004  * 
00005  * This file is part of GNU Radio
00006  * 
00007  * GNU Radio is free software; you can redistribute it and/or modify
00008  * it under the terms of the GNU General Public License as published by
00009  * the Free Software Foundation; either version 2, or (at your option)
00010  * any later version.
00011  * 
00012  * GNU Radio is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00015  * GNU General Public License for more details.
00016  * 
00017  * You should have received a copy of the GNU General Public License
00018  * along with GNU Radio; see the file COPYING.  If not, write to
00019  * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
00020  * Boston, MA 02111-1307, USA.
00021  */
00022 
00023 #ifndef _GR_COUNT_BITS_H_
00024 #define _GR_COUNT_BITS_H_
00025 
00026 unsigned int gr_count_bits8(unsigned int x);    // return number of set bits in the low  8 bits of x
00027 unsigned int gr_count_bits16(unsigned int x);   // return number of set bits in the low 16 bits of x
00028 unsigned int gr_count_bits32(unsigned int x);   // return number of set bits in the low 32 bits of x
00029 unsigned int gr_count_bits64(unsigned long long int x);
00030 
00031 #endif /* _GR_COUNT_BITS_H_ */