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diff --git a/src/Skeleton_blocker/include/gudhi/Skeleton_blocker/iterators/Skeleton_blockers_edges_iterators.h b/src/Skeleton_blocker/include/gudhi/Skeleton_blocker/iterators/Skeleton_blockers_edges_iterators.h
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+/* This file is part of the Gudhi Library - https://gudhi.inria.fr/ - which is released under MIT.
+ * See file LICENSE or go to https://gudhi.inria.fr/licensing/ for full license details.
+ * Author(s): David Salinas
+ *
+ * Copyright (C) 2014 Inria
+ *
+ * Modification(s):
+ * - YYYY/MM Author: Description of the modification
+ */
+
+#ifndef SKELETON_BLOCKER_ITERATORS_SKELETON_BLOCKERS_EDGES_ITERATORS_H_
+#define SKELETON_BLOCKER_ITERATORS_SKELETON_BLOCKERS_EDGES_ITERATORS_H_
+
+#include <boost/iterator/iterator_facade.hpp>
+#include <boost/graph/adjacency_list.hpp>
+
+#include <utility> // for pair<>
+
+namespace Gudhi {
+
+namespace skeleton_blocker {
+
+template<typename SkeletonBlockerComplex>
+class Edge_around_vertex_iterator : public boost::iterator_facade <Edge_around_vertex_iterator<SkeletonBlockerComplex>
+, typename SkeletonBlockerComplex::Edge_handle const, boost::forward_traversal_tag
+, typename SkeletonBlockerComplex::Edge_handle const> {
+ friend class boost::iterator_core_access;
+
+ typedef SkeletonBlockerComplex Complex;
+ typedef typename Complex::boost_adjacency_iterator boost_adjacency_iterator;
+ typedef typename Complex::Vertex_handle Vertex_handle;
+ typedef typename Complex::Edge_handle Edge_handle;
+
+ private:
+ const Complex* complex;
+ Vertex_handle v;
+
+ boost_adjacency_iterator current_;
+ boost_adjacency_iterator end_;
+
+ public:
+ Edge_around_vertex_iterator() : complex(NULL) { }
+
+ Edge_around_vertex_iterator(const Complex* complex_, Vertex_handle v_) :
+ complex(complex_),
+ v(v_) {
+ tie(current_, end_) = adjacent_vertices(v.vertex, complex->skeleton);
+ }
+
+ /**
+ * returns an iterator to the end
+ */
+ Edge_around_vertex_iterator(const Complex* complex_, Vertex_handle v_, int end) :
+ complex(complex_),
+ v(v_) {
+ tie(current_, end_) = adjacent_vertices(v.vertex, complex->skeleton);
+ set_end();
+ }
+
+ bool equal(const Edge_around_vertex_iterator& other) const {
+ return (complex == other.complex) && (v == other.v) && (current_ == other.current_) && (end_ == other.end_);
+ }
+
+ void increment() {
+ if (current_ != end_)
+ ++current_;
+ }
+
+ Edge_handle dereference() const {
+ return *(*complex)[std::make_pair(v, static_cast<Vertex_handle> (*current_))];
+ }
+
+ private:
+ // remove this ugly hack
+ void set_end() {
+ current_ = end_;
+ }
+};
+
+/**
+ *@brief Iterator on the edges of a simplicial complex.
+ *
+ */
+template<typename SkeletonBlockerComplex>
+class Edge_iterator : public boost::iterator_facade <Edge_iterator<SkeletonBlockerComplex>
+, typename SkeletonBlockerComplex::Edge_handle const
+, boost::forward_traversal_tag
+, typename SkeletonBlockerComplex::Edge_handle const> {
+ friend class boost::iterator_core_access;
+
+ public:
+ typedef SkeletonBlockerComplex Complex;
+ typedef typename Complex::boost_edge_iterator boost_edge_iterator;
+ typedef typename Complex::Edge_handle Edge_handle;
+
+ const Complex* complex;
+ std::pair<boost_edge_iterator, boost_edge_iterator> edge_iterator;
+
+ Edge_iterator() : complex(NULL) { }
+
+ Edge_iterator(const SkeletonBlockerComplex* complex_) :
+ complex(complex_),
+ edge_iterator(boost::edges(complex_->skeleton)) { }
+
+ /**
+ * return an iterator to the end
+ */
+ Edge_iterator(const SkeletonBlockerComplex* complex_, int end) :
+ complex(complex_),
+ edge_iterator(boost::edges(complex_->skeleton)) {
+ edge_iterator.first = edge_iterator.second;
+ }
+
+ bool equal(const Edge_iterator& other) const {
+ return (complex == other.complex) && (edge_iterator == other.edge_iterator);
+ }
+
+ void increment() {
+ if (edge_iterator.first != edge_iterator.second) {
+ ++(edge_iterator.first);
+ }
+ }
+
+ Edge_handle dereference() const {
+ return (*(edge_iterator.first));
+ }
+};
+
+} // namespace skeleton_blocker
+
+namespace skbl = skeleton_blocker;
+
+} // namespace Gudhi
+
+#endif // SKELETON_BLOCKER_ITERATORS_SKELETON_BLOCKERS_EDGES_ITERATORS_H_