cycling through a vector?

[JoeC]

I have a vector of elements, how can I take the first element of a
vector and put it in the end and have all the other elements cycle
down? Ex: My vector holds pointers vector<*ele>vec ;
1, 2, 3, 4...
cycle
4, 1, 2 ,3

I still want to use the vector vec[x] or is there a liberary that is
better for this?