WSJT-X/lib/crc12.cpp
Steven Franke 38ab140ab6 Thanks Bill.
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7622 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
2017-03-28 12:16:34 +00:00

21 lines
593 B
C++

#include <boost/crc.hpp>
#include <boost/cstdint.hpp>
extern "C"
{
short crc12 (unsigned char const * data, int length);
bool crc12_check (unsigned char const * data, int length);
}
// assumes CRC is last 16 bits of the data and is set to zero
// caller should assign the returned CRC into the message in big endian byte order
short crc12 (unsigned char const * data, int length)
{
return boost::augmented_crc<12, 0xc06> (data, length);
}
bool crc12_check (unsigned char const * data, int length)
{
return !boost::augmented_crc<12, 0xc06> (data, length);
}