title: How to move one vector into another vector without copying
body: <p>I have a large <code>vector&lt;object&gt;</code> created inside a scope that I want to push into a vector residing outside that scope without copying it (since it is very large). Is there a way i can push vector v into vvec without doing a copy as I am doing currently?</p>
  <pre><code>std:vector&lt;std::vector&lt;object&gt;&gt; vvec;
  {
      std::vector&lt;object&gt; v;
      v.emplace_back(object());
      vvec.push_back(v);
  }
  </code></pre>