Dynamic creation of 3D Array

[Mahesh Varma]

Hi all, How can i dynamically create a 3D array ? I have tried using new operator. But apparently it only support the dynamic creation of the first dimension.Can someone help me? Thanks Mahesh

[Andrew Walker]

The short answer is because the syntax to do so is horrible, you can use much nicer tools to do it for you. I believe this will do what you want. Note the use of the delete[] operator to delete arrays.

= new int*[dy]; for(y = 0; y < dy; y++) { pMatrix[x][y] = new int[dz]; } } for(x = 0; x < dx; x++) { for(y = 0; y < dy; y++) { delete[] pMatrix[x][y]; } delete[] pMatrix[x]; } delete[] pMatrix;

I think you'll agree that this is much nicer. vector<vector<vector<int> > > matrix; matrix[0][0][0] = 1;However if you need to do alot of matrix math then I strongly suggest you look at something like boost::uBlas which uses template proxy classes to eliminate the expensive copies that are the price of using vectors.

---

If you can keep you head when all about you Are losing theirs and blaming it on you; If you can dream - and not make dreams your master; If you can think - and not make thoughts you aim; Yours is the Earth and everything that's in it. Rudyard Kipling