Fast way to implement pop_front to a std::vector

Question

I\'m using some classes and several utility methods that use std:: vector.

Now I need to use each frame a pop_front - push_back method on one of those classes (but they

Answer 1

Since pop_front() only erases the first element, the direct implementation is this:

template 
void pop_front(V & v)
{
    assert(!v.empty());
    v.erase(v.begin());
}

Don't worry about speed for now. If you want to go back and optimize code, ask for dedicated project time.