#include "crc32.h"
#include <stdint.h>

int main(void)
{
   //-- Allocate crc_calc object and construct it
   struct S_Crc32 crc_calc;
   crc32_ctor(&crc_calc);

   //-- Get bytes from wherever you want, and feed them to crc_calc
   //   (in this example, bytes are just hardcoded)
   crc32_byte_feed(&crc_calc, 0x01);
   crc32_byte_feed(&crc_calc, 0x02);
   crc32_byte_feed(&crc_calc, 0x03);
   crc32_byte_feed(&crc_calc, 0x04);

   //-- get crc32 value
   uint32_t crc_val = crc32_value_get(&crc_calc);

   //-- destruct crc_calc
   crc32_dtor(&crc_calc);
}