Is 2d array a double pointer? [duplicate]

Answer 1

If you can use the stack for that data (small volume) then you usually define the matrix:

int matrix[X][Y]

When you want to allocate it in the heap (large volume), the you usually define a:

int** matrix = NULL;

and then allocate the two dimensions with malloc/calloc. You can treat the 2d array as int** but that is not a good practice since it makes the code less readable. Other then that

**matrix == matrix[0][0] is true