Detect Circular Pattern Match

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

uint8_t is_circular_match(uint16_t reg, uint16_t target) {
    // Your code here
    if(reg==target) return 1;
    uint8_t res= 0;
    int n=15;
    while(n!=0){
        if(target & 0x8000){
           target= target<<1;
           target |= 0x0001;
        }
        else {
           target= target<<1;
           target &= ~(0x0001);
        }

        if(reg==target) return 1;
        n--;
    }

    return res;
}

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