GNU Radio 3.6.1 C++ API
digital_crc32.h
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1 /* -*- c++ -*- */
2 /*
3  * Copyright 2005,2011 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,
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21  */
22 
23 #ifndef INCLUDED_DIGITAL_CRC32_H
24 #define INCLUDED_DIGITAL_CRC32_H
25 
26 #include <digital_api.h>
27 #include <string>
28 #include <gr_types.h>
29 
30 /*!
31  * \brief update running CRC-32
32  * \ingroup digital
33  *
34  * Update a running CRC with the bytes buf[0..len-1] The CRC should be
35  * initialized to all 1's, and the transmitted value is the 1's
36  * complement of the final running CRC. The resulting CRC should be
37  * transmitted in big endian order.
38  */
39 DIGITAL_API unsigned int
40 digital_update_crc32(unsigned int crc, const unsigned char *buf, size_t len);
41 
42 DIGITAL_API unsigned int
43 digital_update_crc32(unsigned int crc, const std::string buf);
44 
45 DIGITAL_API unsigned int
46 digital_crc32(const unsigned char *buf, size_t len);
47 
48 DIGITAL_API unsigned int
49 digital_crc32(const std::string buf);
50 
51 #endif /* INCLUDED_CRC32_H */