+−#include "quacrc32.h" +− +−#include "zlib.h" +− +−QuaCrc32::QuaCrc32() +−{ +− reset(); +−} +− +−quint32 QuaCrc32::calculate(const QByteArray &data) +−{ +− return crc32( crc32(0L, Z_NULL, 0), (const Bytef*)data.data(), data.size() ); +−} +− +−void QuaCrc32::reset() +−{ +− checksum = crc32(0L, Z_NULL, 0); +−} +− +−void QuaCrc32::update(const QByteArray &buf) +−{ +− checksum = crc32( checksum, (const Bytef*)buf.data(), buf.size() ); +−} +− +−quint32 QuaCrc32::value() +−{ +− return checksum; +−}