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CGAL 5.6 - dD Spatial Searching
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The concept SearchGeomTraits_2 defines the requirements for the template parameter of the search traits classes.
Functor with operators to construct iterators on the first and the past-the-end iterator for the Cartesian coordinates of a point.
This functor must provide the type result_type that must be the same a Cartesian_const_iterator_2.