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Use a shared_ptr in order to make the property map lightweight

This commit is contained in:
Andreas Fabri 2014-11-21 12:50:35 +01:00
parent a096cdf431
commit c904f77e13
1 changed files with 16 additions and 7 deletions
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23
BGL/include/CGAL/boost/graph/properties_Polyhedron_3.h
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@ -24,6 +24,7 @@
#include <CGAL/boost/graph/graph_traits_Polyhedron_3.h>
#include <CGAL/Unique_hash_map.h>
#include <CGAL/squared_distance_2_1.h>
#include <boost/shared_ptr.hpp>
#define CGAL_HDS_PARAM_ template < class Traits, class Items, class Alloc> class HDS
@ -41,13 +42,17 @@ public:
typedef std::size_t reference;
typedef Handle key_type;
private:
typedef CGAL::Unique_hash_map<key_type,std::size_t> Map;
public:
template <typename InputIterator>
Polyhedron_index_map_external(InputIterator begin, InputIterator end, std::size_t max)
: map_(begin, end, 0, std::size_t(-1), max) {}
: map_(new Map(begin, end, 0, std::size_t(-1), max)) {}
reference operator[](const key_type& k) const { return map_[k]; }
reference operator[](const key_type& k) const { return (*map_)[k]; }
private:
CGAL::Unique_hash_map<key_type,std::size_t> map_;
boost::shared_ptr<Map> map_;
};
// Special case for edges.
@ -61,18 +66,22 @@ public:
typedef std::size_t reference;
typedef typename boost::graph_traits<Polyhedron>::edge_descriptor key_type;
private:
typedef CGAL::Unique_hash_map<key_type,std::size_t> Map;
public:
Polyhedron_edge_index_map_external(Polyhedron& p)
: map_(std::size_t(-1), num_halfedges(p))
: map_(new Map(std::size_t(-1), num_halfedges(p)))
{
unsigned int data = 0;
typename boost::graph_traits<Polyhedron>::edge_iterator it, end;
for(boost::tie(it, end) = edges(p); it != end; ++it, ++data)
map_[*it] = data;
(*map_)[*it] = data;
}
reference operator[](const key_type& k) const { return map_[k]; }
reference operator[](const key_type& k) const { return (*map_)[k]; }
private:
CGAL::Unique_hash_map<key_type,std::size_t> map_;
boost::shared_ptr<Map> map_;
};
template<typename Handle>