title: How can I insert element into beginning of vector?
body: <p>I need to insert values into the beginning of a <code>std::vector</code> and I need other values in this vector to be pushed to further positions for example: something added to beginning of a vector and values moved from position 1 to 2, from 2 to 3 etc.</p>
  <p>How can I do that?</p>