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libs/smart_ptr/example/scoped_ptr_example.hpp

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+//  Boost scoped_ptr_example header file  ------------------------------------//
+
+//  Copyright Beman Dawes 2001.  Distributed under the Boost
+//  Software License, Version 1.0. (See accompanying file
+//  LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+
+//  See http://www.boost.org/libs/smart_ptr for documentation.
+
+#include <boost/utility.hpp>
+#include <boost/scoped_ptr.hpp>
+
+//  The point of this example is to prove that even though
+//  example::implementation is an incomplete type in translation units using
+//  this header, scoped_ptr< implementation > is still valid because the type
+//  is complete where it counts - in the inplementation translation unit where
+//  destruction is actually instantiated.
+
+class example : private boost::noncopyable
+{
+ public:
+  example();
+  ~example();
+  void do_something();
+ private:
+  class implementation;
+  boost::scoped_ptr< implementation > _imp; // hide implementation details
+};
+