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  #ifndef COIN_SOSUBNODEENGINEP_H
  #define COIN_SOSUBNODEENGINEP_H
  
  // The macro definitions in this file is used internally by Coin
  // classes, and mirrors some of the public macros available in
  // SoSubEngine.h with a few modifications so they are suited for the
  // builtin classes.
  //
  // The macros in this file are not made visible for use by the
  // application programmer.
  
  #ifndef COIN_INTERNAL
  #error this is a private header file
  #endif // !COIN_INTERNAL
  
  #include <Inventor/engines/SoSubNodeEngine.h>
  
  #include "tidbitsp.h"
  
  // Be aware that any changes to the SO_ENGINE_INTERNAL_CONSTRUCTOR
  // macro should be matched by similar changes to the constructor in
  // the SO_INTERPOLATE_SOURCE macro (which have to use
  // SO_ENGINE_CONSTRUCTOR because it is "public").
  
  // Update 2006-08-11, pederb:
  // The INIT_CLASS macros will now set the node type to VRML97. All
  // node-engines in Coin are VRML97 nodes. If we add node engines that
  // are not VRML97 nodes we need to add some new macros.
  
  
  #define SO_NODEENGINE_INTERNAL_CONSTRUCTOR(_class_) \
    do { \
      SO_NODEENGINE_CONSTRUCTOR(_class_); \
      /* Restore value of isBuiltIn flag (which is set to FALSE */ \
      /* in the SO_ENGINE_CONSTRUCTOR() macro). */ \
      this->isBuiltIn = TRUE; \
    } while (0)
  
  #define SO_NODEENGINE_INTERNAL_INIT_CLASS(_class_) \
    do { \
      const char * classname = SO__QUOTE(_class_); \
      PRIVATE_COMMON_NODEENGINE_INIT_CODE(_class_, &classname[2], &_class_::createInstance, inherited); \
      SoNode::setCompatibilityTypes(_class_::getClassTypeId(), SO_VRML97_NODE_TYPE); \
      coin_atexit((coin_atexit_f*)_class_::atexit_cleanupnodeengine, CC_ATEXIT_NORMAL); \
      coin_atexit((coin_atexit_f*)_class_::atexit_cleanup, CC_ATEXIT_NORMAL); \
    } while (0)
  
  
  #define SO_NODEENGINE_INTERNAL_INIT_ABSTRACT_CLASS(_class_) \
    do { \
      const char * classname = SO__QUOTE(_class_); \
      PRIVATE_COMMON_NODEENGINE_INIT_CODE(_class_, &classname[2], NULL, inherited); \
      SoNode::setCompatibilityTypes(_class_::getClassTypeId(), SO_VRML97_NODE_TYPE); \
      coin_atexit((coin_atexit_f*)_class_::atexit_cleanupnodeengine, CC_ATEXIT_NORMAL); \
      coin_atexit((coin_atexit_f*)_class_::atexit_cleanup, CC_ATEXIT_NORMAL); \
    } while (0)
  
  
  #endif // COIN_SOSUBNODEENGINEP_H
  