Moving a vector element to the back of the vector

Question

Is there any better way (either faster or with fewer symbols of code) than erasing the element and re-adding it to the back?

template 
void mov         


        

Answer 1

Possibly the fastest way, would be to swap it with the last element

template 
void moveItemToBack(std::vector& v, size_t itemIndex)
{
   std::swap(v[itemIndex], v.back()); // or swap with *(v.end()-1)
}

one operation! Ofcourse std::swap has to work with T