CGAL::Filter_iterator<Iterator, Predicate>

Definition

Note: Boost also provides the same functionality via the boost::filter_iterator class. Unfortunately, the semantics chosen for accepting or rejecting elements based on the predicate's result are opposite as the semantic chosen here.

#include <CGAL/iterator.h>

Requirements

• Iterator is a model for ForwardIterator.
• Predicate is a functor: Iterator $$ bool.

Creation

Filter_iterator<Iterator, Predicate> i;
Filter_iterator<Iterator, Predicate> i ( Iterator e, Predicate p, Iterator c = e);
	creates an iterator which filters values according to p. Initializes by taking the first valid iterator (according to p), starting at c, and stopping at e if none is found.