Detect Circular Pattern Match

Code

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) 
{
    int count=1;
    while(count<=15) //we need to execute it 15 times. If value is not matched in any of the iteration means there was no target found during shifting operation.
    {
        count++;
        //logic of leftshifting.
        uint16_t mask=((reg>>15)&1); //everytime we are fetching bit on LSB and storing in mask.
        reg=(reg<<1)|mask;           //Implement leftshift by once, we get vacancy on LSB. Now perform XOR with above mask.

        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