title: boost pointer container insert (ptr_list)
body: <p>For some reason, I cannot get ptr_list to insert elements.</p>
  
  <pre><code>boost::ptr_list&lt;int&gt; somelist;
  int *someint = new int(123);
  int *someint2 = new int(456);
  somelist.push_back(someint);
  boost:: ptr_list&lt;int&gt;::iterator i = somelist.begin();
  
  somelist.insert(i,someint2);
  </code></pre>
  
  <p>Any help, please?</p>