mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2025-11-03 13:30:52 -05:00
29fc1719a9
Some current Linux distributions are still using GCC 4.6 which has no/poor C++11 support. probably more of this needed if we are to support such compilers. git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/branches/wsjtx@7896 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
32 lines
771 B
C++
32 lines
771 B
C++
#include <boost/crc.hpp>
|
|
#include <boost/config.hpp>
|
|
|
|
extern "C"
|
|
{
|
|
short crc12 (unsigned char const * data, int length);
|
|
bool crc12_check (unsigned char const * data, int length);
|
|
}
|
|
|
|
#define POLY 0xc06
|
|
|
|
#ifdef BOOST_NO_CXX11_CONSTEXPR
|
|
#define TRUNCATED_POLYNOMIAL POLY
|
|
#else
|
|
namespace
|
|
{
|
|
unsigned long constexpr TRUNCATED_POLYNOMIAL = POLY;
|
|
}
|
|
#endif
|
|
|
|
// 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, TRUNCATED_POLYNOMIAL> (data, length);
|
|
}
|
|
|
|
bool crc12_check (unsigned char const * data, int length)
|
|
{
|
|
return !boost::augmented_crc<12, TRUNCATED_POLYNOMIAL> (data, length);
|
|
}
|