Detect Circular Pattern Match

Code

#include <stdio.h>
#include <stdint.h>

uint8_t is_circular_match(uint16_t reg, uint16_t target)
{
    for (uint8_t index = 0;index <16;index++)
    {
      reg = (reg << index | (reg >> (16-index)));
      if(reg == target)
         return 1;
    }
    return 0;

}

int main() {
    uint16_t reg, target;
    scanf("%hu %hu", &reg, &target);
    printf("%hhu", is_circular_match(reg, target));
    return 0;
}

Solving Approach