resizing multidimensional vector

Question

How to resize multidimensional vector such as:

  vector  > > array; 

For example, I need arr

Answer 1

I would make a custom container containing a vector of vectors (of ... per dimension) and resize with resize-functions per dimension. This way you can put the invariant of equal size per dimension in one place. The actual resizing can then be done in a loop according to dimension.
There will be a bit of work involved in making public what needs to be accessed (operator[],...)