hash value function for a matrix multiplication

hash_value.c

// C[] is the elements of matrix multiplication 
// we consider the hash value as zero and add the sum of the elemnt of the matrix as its value
// if the two matrices that we have computed have diffrent hash value then there would be an error in the computation of the matrics.

int hash_value = 0;
int i_m;
for( i_m = 0; i_m < N*N; i_m++) {
    hash_value += C[i_m];
}
// taking a modulo  to shorten  the final result.
hash_value %= 100000007;