Count Set Bits in an 8-bit Register

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

uint8_t count_set_bits(uint8_t reg) {
    // Your code here
    int c =0;
    uint8_t value ;
    while(reg !=0)
    {
       value = reg&0x1;
       if(value ==1)
        c++;
       reg = reg>>1;
    }
    return c;
}

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