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## CGAL::query_circulator_or_iterator

### Definition

The following function distinguishes between circulators and iterators. It is based on iterator traits [C`++`98, Mye95] and Circulator_traits.

#include <CGAL/circulator.h>

template <class I>
Iterator_tag | query_circulator_or_iterator ( I i)
|  | if the iterator category of I belongs to an iterator.
template <class C>
Circulator_tag | query_circulator_or_iterator ( C c)
|  | if the iterator category of C belongs to a circulator.

### See Also

Circulator_tag, Circulator_traits, Assert_circulator, Circulator.

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The CGAL Project . Tue, December 21, 2004 .