How to calculate cosine similarity score between two pieces of C code?

I am bignner in matlab.I have to calculate the cosine similarity score between two pieces of C code . Is it possible whih matlab? If yes then how?

Please

The example of piece of code is given as follow.

void sumProd1A(int n) {
    double sum = 0.0; //C1
    double prod = 1.0;
    int i;
    for (i = 1; i <= n; i++)
    {    sum = sum + i;
        prod = prod * i;
        foo2(sum, prod);}
}
void main()
{
    printf("\nsumProd1A_Cordy: %lf ");
    sumProd1A(4);
}

[dpb]

Might try https://www.mathworks.com/matlabcentral/fileexchange/62978-getcosinesimilarity-x-y