C++ overload operator [ ][ ]

Question

I have class CMatrix, where is \"double pointer\" to array of values.

class CMatrix {
public:
    int rows, cols;
    int **arr;
};

I simpl

Answer 1

You can do it by overloading operator[] to return an int*, which is then indexed by the second application of []. Instead of int* you could also return another class representing a row, whose operator[] gives access to individual elements of the row.

Essentially, subsequent applications of operator[] work on the result of the previous application.