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array of pointer to a 2-d array

If you're talking about C, you can't. The dimensions of an array are part of its type. An array is a sequence of elements of the same type. Therefore you can't have an array of pointers to dfferent types.

You'd have to have an array of pointers-to-int, and then deal with the fact that each pointer-to-int is a really a pointer to an arrray of array of int, of some dimensions that have to be managed outside the type system.

Or you could write in C++, where you can define any type you want, as long as you're prepared to program it.

class Matrix { Matrix(int n, int m); ... };
std::vector<Matrix*> whatever;
 

reply to dipak1296
What you are looking to do is called a jagged array. Google "jagged array language" where [language] is your particular language you're implementing it in.