title: How to use private inheritance via constructing with arguments?
body: <p>Some code like this:</p>
  
  <pre><code>class maven
  {
  private:
          string username;
  public:
          maven(string un)
          {
              username = un;
          }
  };
  
  class car : private maven
  {
  public:
         /... do something .../
  };
  </code></pre>
  
  <p>Then I want a get a maven instance within the object car.
  But how can I construct the maven object with argument?
  I have looked up specification and annotation.</p>