Does passing (ostream &os) to print a simple object like an array add any value?

[t009]

Whyuse void printa(ostream &os,int *Array) instead of just printa(int *Array) which does the exact same thing?

void printa(int *a)
{        for (...)
        cout<< a[i]<<endl;
}
int main()
{
int *a= new int[10];
printa(a);
delete a;

}

void print_array10(ostream& os, int* a) {
    for (...)
        os << a[i] << "\n";
}
int main()
{
 int *a= new int[10];
 print_array10(cout,a)

I learned that you can print to a file using the second version, but besides that any benefit?

[E0p9LyTq]

Passing a stream object allows for changing the stream, so the same function that outputs to the console can output to a file by changing the passed stream.