32 lines
565 B
C++
32 lines
565 B
C++
#include "checksum.h"
|
|
|
|
#include <boost/crc.hpp>
|
|
|
|
using namespace base;
|
|
|
|
//----------------------------------------------------------------
|
|
|
|
crc32c::crc32c(uint32_t xor_value)
|
|
: xor_value_(xor_value),
|
|
sum_(0)
|
|
{
|
|
}
|
|
|
|
void
|
|
crc32c::append(void const *buffer, unsigned len)
|
|
{
|
|
uint32_t const powers = 0x1EDC6F41;
|
|
|
|
boost::crc_basic<32> crc(powers, 0xffffffff, 0, true, true);
|
|
crc.process_bytes(buffer, len);
|
|
sum_ = crc.checksum();
|
|
}
|
|
|
|
uint32_t
|
|
crc32c::get_sum() const
|
|
{
|
|
return sum_ ^ xor_value_;
|
|
}
|
|
|
|
//----------------------------------------------------------------
|