Circulator Package
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-  CGAL/circulator.h

     Support for circulator definitions (base classes, tags etc.).     
     Incluces circulator_bases.h for base classes and tags.
     Functions on circulators (size and distance). 
     Adaptors between circulators and iterators.
     Support to write programs for circulators and iterators
     simultaneously.

-  CGAL/circulator_bases.h

     Circulator base classes and tags.     

-  CGAL/circulator_impl.h

     Adaptors that provide circulators for common types of 
     data structures like circular linked lists or arrays.
     No longer supported in the documentation. Please refer 
     to the CGAL 0.9 Support Library manual.

Lutz Kettner