title: List of Variables in C++
body: <p>Is there a way to create a <code>std::vector</code> like list, but which only contains <strong>1</strong> value, without a key. </p>
  
  <p>What I basically want to do is store a whole bunch of Entities. Also it'd be nice if I could remove objects by key. (e.g. <code>map::remove(Entity*);</code>)</p>