TheAlgorithms-C/leetcode/src/191.c

int hammingWeight(uint32_t n) {
    int TotalBits = 32;
    int i, weight = 0;
    for(i = 0; i < TotalBits; i++) {
        if(n & (UINT32_C(1) << i))  //if the bit on the ith position of 32 bit input is 1, then proceed
                                    //Further note the use of UINT32_C to convert 1 to unsigned 32 bit int, as just 1 is treated as int which cannot be shifted left more than 30 times
            weight += 1;
    }
    return weight;
}