title: Is there analog of ".." for c++ namespaces?
body: <p>Hello I have the following structure in my code:</p>
  
  <pre><code>namespace ns
  {
  class A
  {
    public:
      class Impl
      {
          public: static int x;
      };
      class B
      {
        public:
          class Impl
          {
            public:
              Impl(){printf("%d", ns::A::Impl::x);}
          };
      };
  };
  }
  </code></pre>
  
  <p>Is there a way to access that x property, using a relative, not the absolute path? </p>
  
  <p>It would be more convenient, because, someday I could change the namespace name from <code>ns</code> to e.g. <code>other</code>, or put this entire file into some outer namespace.</p>