Count Set Bits in an 8-bit Register

Code

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

uint8_t count_set_bits(uint8_t reg) {
    // Your code here
    int count = 0;
  
    while (reg)
    {
        //printf("reg %d \n" , reg);
       if (reg & 1)
       {
        count ++;
       }
        
        reg = reg >> 1; 
    }

    return count;
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    printf("%u", count_set_bits(reg));
    return 0;
}

Solving Approach