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/* -*- c++ -*- */
/*
* Copyright 2005,2011 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3, or (at your option)
* any later version.
*
* GNU Radio is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#ifndef INCLUDED_DIGITAL_CRC32_H
#define INCLUDED_DIGITAL_CRC32_H
#include <digital_api.h>
#include <string>
#include <gr_types.h>
/*!
* \brief update running CRC-32
* \ingroup digital
*
* Update a running CRC with the bytes buf[0..len-1] The CRC should be
* initialized to all 1's, and the transmitted value is the 1's
* complement of the final running CRC. The resulting CRC should be
* transmitted in big endian order.
*/
DIGITAL_API unsigned int
digital_update_crc32(unsigned int crc, const unsigned char *buf, size_t len);
DIGITAL_API unsigned int
digital_update_crc32(unsigned int crc, const std::string buf);
DIGITAL_API unsigned int
digital_crc32(const unsigned char *buf, size_t len);
DIGITAL_API unsigned int
digital_crc32(const std::string buf);
#endif /* INCLUDED_CRC32_H */
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