c 2b 2b over load oprator to print variable of clas

1ostream& operator<< (ostream& out, graph g) {
2        for (int i = 0; i < g.size; ++i) {
3            for (int j = 0; j < g.size; ++j) 
4                out << (g.grph[i][j] ? "true" : "false") << "\t";
5            out << endl;
6        }
7        return out;
8    }