C++ double subscript operator overload [duplicate]

Question

Possible Duplicate:
Operator[][] overload

I've looked on the internet but can't find a definitive answer to this question so here I am.

I know that: operator[][]() is not a valid operator overloading, but is their a way to overload the [][] operator (used on vector<vector<typename>> for example).

I need this because I'm doing a sort of wrapper class which contains a vector of vector, and I would have liked

Luchian Grigore · Accepted Answer · 2012-06-19 19:58:03Z

Yes, but it depends on the return type of operator []. You can return a type that itself supports operator [].

Let's say:

struct Matrix { vector<vector<int> > x; vector<int>& operator[] (int i) { return x[i]; } };

Because x[i] return a vector, you can use [] again because vector has an operator[].

Collectives™ on Stack Overflow

C++ double subscript operator overload [duplicate]

1 Answer 1

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Linked

Related