title: May I declare "using namespace" inside a C++ class?
body: <p>Assume having a C++ class. And there's a namespace which should be visible only inside my class. What to do for that?</p>
  
  <pre><code>class SomeClass
  {
      using namespace SomeSpace;
  
  public:
      void Method1();
      void Method2();
      void Method3();
  };
  
  namespace SomeSpace
  {
      /*some code*/
  };
  </code></pre>