ceph/src/boost/libs/smart_ptr/example/scoped_ptr_example.hpp

   1 //  Boost scoped_ptr_example header file  ------------------------------------//
   2
   3 //  Copyright Beman Dawes 2001.  Distributed under the Boost
   4 //  Software License, Version 1.0. (See accompanying file
   5 //  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
   6
   7
   8 //  See http://www.boost.org/libs/smart_ptr for documentation.
   9
  10 #include <boost/utility.hpp>
  11 #include <boost/scoped_ptr.hpp>
  12
  13 //  The point of this example is to prove that even though
  14 //  example::implementation is an incomplete type in translation units using
  15 //  this header, scoped_ptr< implementation > is still valid because the type
  16 //  is complete where it counts - in the inplementation translation unit where
  17 //  destruction is actually instantiated.
  18
  19 class example : private boost::noncopyable
  20 {
  21  public:
  22   example();
  23   ~example();
  24   void do_something();
  25  private:
  26   class implementation;
  27   boost::scoped_ptr< implementation > _imp; // hide implementation details
  28 };
  29