clonable.hpp Source File

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 #ifndef CLONABLE_HPP
 #define CLONABLE_HPP
 /*------------------------------------------------------------------------------
  
   Author:    Andy Rushton
   Copyright: (c) Andy Rushton, 2004
   License:   BSD License, see ../docs/license.html
  
   This abstract class defines the clonable interface
  
   The clonable interface is used by smart_ptr_clone and by the persistence
   functions for polymorphic types.
  
   If you make any class a subclass of clonable, then you must provide a
   clone() method with the type profile specified here. This method must copy
   the object (i.e. *this), returning a new-allocated object with the same
   contents.
  
   If you provide this interface, all systems requiring a clonable object will
   work correctly.
  
   ------------------------------------------------------------------------------*/
  
 class clonable {
  public:
   virtual clonable* clone(void) const = 0;
 };
  
 #endif