//
// Created by bruno on 13. 7. 2026.
//

#include "crc32.h"

uint32_t calcCRC32(
    const uint8_t *data,
    size_t len) {
    uint32_t crc = 0xffffffff;


    while (len--) {
        crc ^= *data++;


        for (int i = 0; i < 8; i++) {
            if (crc & 1)
                crc =
                        (crc >> 1)
                        ^ 0xedb88320;

            else
                crc >>= 1;
        }
    }


    return ~crc;
}