#pragma once

#include "AbstractChecksumCalculator.h"

#include <vector>

class CyclicRedundancyChecker : public AbstractChecksumCalculator
{
public:
    void addValue(unsigned char val) override;

    uint32_t getChecksum() const override;

    void reset() override;

private:
    void createTable();
    bool mTableComputed{false};

    uint32_t mLastValue{0xffffffffL};

    static const std::size_t TABLE_SIZE{ 256 };
    std::vector<unsigned long> mTable;
};