> > You can have a dynamic array that _points_ to the stack, but there is > no general mechanism for allocating a dynamic array directly on the > stack. You might be able to do something with alloca, but stack space > is usually limited and you wouldn't be able to have very large arrays. > > Performance of dynamic arrays is the same no matter where their data > is. Fixed-size 2D arrays are not faster _because_ they are on the > stack, they just happen to be allocated on the stack. They are faster > (usually) because they don't need two pointer dereferences. You can > allocated a fixed-size 2D array on the heap (well.. inside a struct or > class anyway) and it will be just as fast.
Ok, so when I want a multimillion array with speed I should use a static array on the heap. That would be using new, right :)
