shared_ptr.hxx

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#ifndef SHARED_PTR_HXX
#define SHARED_PTR_HXX

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#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>

namespace boost {
  struct GC_Null_tag {
    template <class T>
    operator shared_ptr<T> () {
      return shared_ptr<T>();
    }
  };
  extern GC_Null_tag GC_NULL;

#if 0
  template <class T>
  static inline
  shared_ptr<T>& operator=(GC_Null_tag&) {
    return shared_ptr<T>;
  }
#endif
}

#endif /* SHARED_PTR_HXX */

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