diff options
Diffstat (limited to 'gnuradio-core/src/lib/general/gr_crc32.h')
| -rw-r--r-- | gnuradio-core/src/lib/general/gr_crc32.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/gnuradio-core/src/lib/general/gr_crc32.h b/gnuradio-core/src/lib/general/gr_crc32.h new file mode 100644 index 0000000000..2d6fdc85dd --- /dev/null +++ b/gnuradio-core/src/lib/general/gr_crc32.h @@ -0,0 +1,43 @@ +/* -*- c++ -*- */ +/* + * Copyright 2005 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 2, 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef INCLUDED_GR_CRC32_H +#define INCLUDED_GR_CRC32_H + +#include <string> +#include <gr_types.h> + +/*! + * \brief update running CRC-32 + * + * 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. + */ +unsigned int gr_update_crc32(unsigned int crc, const unsigned char *buf, int len); +unsigned int gr_update_crc32(unsigned int crc, const std::string buf); + +unsigned int gr_crc32(const unsigned char *buf, int len); +unsigned int gr_crc32(const std::string buf); + +#endif /* INCLUDED_CRC32_H */ |