GNU Radio 3.6.5 C++ API

digital_crc32.h

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00001 /* -*- c++ -*- */
00002 /*
00003  * Copyright 2005,2011 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 3, 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., 51 Franklin Street,
00020  * Boston, MA 02110-1301, USA.
00021  */
00022 
00023 #ifndef INCLUDED_DIGITAL_CRC32_H
00024 #define INCLUDED_DIGITAL_CRC32_H
00025 
00026 #include <digital_api.h>
00027 #include <string>
00028 #include <gr_types.h>
00029 
00030 /*!
00031  * \brief update running CRC-32
00032  * \ingroup digital
00033  *
00034  * Update a running CRC with the bytes buf[0..len-1] The CRC should be
00035  * initialized to all 1's, and the transmitted value is the 1's
00036  * complement of the final running CRC.  The resulting CRC should be
00037  * transmitted in big endian order.
00038  */
00039 DIGITAL_API unsigned int 
00040 digital_update_crc32(unsigned int crc, const unsigned char *buf, size_t len);
00041 
00042 DIGITAL_API unsigned int 
00043 digital_update_crc32(unsigned int crc, const std::string buf);
00044 
00045 DIGITAL_API unsigned int 
00046 digital_crc32(const unsigned char *buf, size_t len);
00047 
00048 DIGITAL_API unsigned int 
00049 digital_crc32(const std::string buf);
00050 
00051 #endif /* INCLUDED_CRC32_H */