554855cc7d
Yet another family of 16-bit CRC function. The only difference with the already available CRC-CCITT algorithm is the choice of the polynomial.
64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
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* libdivecomputer
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*
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* Copyright (C) 2008 Jef Driesen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifndef CHECKSUM_H
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#define CHECKSUM_H
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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unsigned char
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checksum_add_uint4 (const unsigned char data[], unsigned int size, unsigned char init);
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unsigned char
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checksum_add_uint8 (const unsigned char data[], unsigned int size, unsigned char init);
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unsigned short
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checksum_add_uint16 (const unsigned char data[], unsigned int size, unsigned short init);
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unsigned char
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checksum_xor_uint8 (const unsigned char data[], unsigned int size, unsigned char init);
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unsigned short
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checksum_crc16_ccitt (const unsigned char data[], unsigned int size, unsigned short init, unsigned short xorout);
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unsigned short
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checksum_crc16r_ccitt (const unsigned char data[], unsigned int size, unsigned short init, unsigned short xorout);
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unsigned short
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checksum_crc16_ansi (const unsigned char data[], unsigned int size, unsigned short init, unsigned short xorout);
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unsigned short
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checksum_crc16r_ansi (const unsigned char data[], unsigned int size, unsigned short init, unsigned short xorout);
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unsigned int
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checksum_crc32r (const unsigned char data[], unsigned int size);
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unsigned int
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checksum_crc32 (const unsigned char data[], unsigned int size);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* CHECKSUM_H */
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