/usr/include/CGAL/Cell_attribute.h is in libcgal-dev 4.2-5ubuntu1.
This file is owned by root:root, with mode 0o644.
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// All rights reserved.
//
// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 3 of the License,
// or (at your option) any later version.
//
// Licensees holding a valid commercial license may use this file in
// accordance with the commercial license agreement provided with the software.
//
// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
//
// $URL$
// $Id$
//
// Author(s) : Guillaume Damiand <guillaume.damiand@liris.cnrs.fr>
//
#ifndef CGAL_CELL_ATTRIBUTE_H
#define CGAL_CELL_ATTRIBUTE_H 1
#include <CGAL/Compact_container.h>
namespace CGAL {
template < unsigned int d_, class Refs,
class Items_, class Alloc_ >
class Combinatorial_map_base;
/** @file Cell_attribute.h
* Definition of cell attribute, with or without info.
*/
/// Info associated with a cell_attribute.
template <typename Info>
class Info_for_cell_attribute
{
public:
/// Contructor without parameter.
Info_for_cell_attribute()
{}
/// Contructor with an info in parameter.
Info_for_cell_attribute(const Info& ainfo) : minfo(ainfo)
{}
/// Get the info associated with the cell_attribute.
Info& info()
{ return minfo; }
/// Get the info associated with the cell_attribute.
const Info& info() const
{ return minfo; }
protected:
/// The info associated with the cell_attribute.
Info minfo;
};
/// Cell_attribute_without_info
template <class Refs, class Tag=Tag_true,
class OnMerge=Null_functor,
class OnSplit=Null_functor>
class Cell_attribute_without_info;
// Cell_attribute_without_info without dart support.
template <class Refs, class OnMerge, class OnSplit>
class Cell_attribute_without_info<Refs, Tag_false,
OnMerge, OnSplit>
{
template < unsigned int d_, class Refs_,
class Items_, class Alloc_ >
friend class Combinatorial_map_base;
template <int d, typename Refs_>
friend struct Dart;
template < unsigned int d_, class Refs_,
class Items_, class Alloc_ >
friend class Generalized_map_base;
template <int d, typename Refs_>
friend struct GMap_dart;
template <class T, class Alloc_>
friend class Compact_container;
template<typename CMap, unsigned int i, typename T>
friend struct internal::Decrease_attribute_functor_run;
public:
typedef Tag_false Supports_cell_dart;
typedef typename Refs::Dart_handle Dart_handle;
typedef typename Refs::Dart_const_handle Dart_const_handle;
typedef typename Refs::Alloc Alloc;
typedef OnMerge On_merge;
typedef OnSplit On_split;
/// operator =
/// We do nothing since we must not copy mrefcounting.
Cell_attribute_without_info&
operator=(const Cell_attribute_without_info& /*acell*/)
{ return *this; }
/// Get the dart associated with the cell.
Dart_handle dart() { return NULL; }
/// Get the dart associated with the cell.
Dart_const_handle dart() const { return NULL; }
/// Set the dart associated with the cell.
void set_dart(Dart_handle) {}
/// Test if the cell is valid.
/// For cell without dart, return always true.
bool is_valid() const
{ return true; }
protected:
/// Contructor without parameter.
Cell_attribute_without_info(): mrefcounting(0)
{}
/// Copy contructor.
Cell_attribute_without_info(const Cell_attribute_without_info&):
mrefcounting(0)
{}
/// Increment the reference counting.
void inc_nb_refs()
{ ++mrefcounting; }
/// Decrement the reference counting.
void dec_nb_refs()
{
CGAL_assertion( mrefcounting>0 );
--mrefcounting;
}
/// Get the reference counting.
unsigned int get_nb_refs() const
{ return mrefcounting; }
public:
void * for_compact_container() const
{ return vp; }
void * & for_compact_container()
{ return vp; }
private:
/// Reference counting: the number of darts linked to this cell.
union
{
unsigned int mrefcounting;
void *vp;
};
};
/** Definition of cell attribute.
* Cell_attribute defines what is a a cell. This is an object allowing to
* link to a dart of the cell (when T is true).
* The refs class must provide the type of Combinatorial_map used.
*/
template <class Refs, class OnMerge, class OnSplit>
class Cell_attribute_without_info<Refs, Tag_true,
OnMerge, OnSplit>
{
template < unsigned int d_, class Refs_,
class Items_, class Alloc_ >
friend class Combinatorial_map_base;
template <int d, typename Refs_>
friend struct Dart;
template < unsigned int d_, class Refs_,
class Items_, class Alloc_ >
friend class Generalized_map_base;
template <int d, typename Refs_>
friend struct GMap_dart;
template <class T, class Alloc_>
friend class Compact_container;
template<typename CMap, unsigned int i, typename T>
friend struct internal::Decrease_attribute_functor_run;
public:
typedef Tag_true Supports_cell_dart;
typedef typename Refs::Dart_handle Dart_handle;
typedef typename Refs::Dart_const_handle Dart_const_handle;
typedef typename Refs::Alloc Alloc;
typedef OnMerge On_merge;
typedef OnSplit On_split;
/// operator =
/// We must not copy mrefcounting.
Cell_attribute_without_info&
operator=(const Cell_attribute_without_info& acell)
{
mdart = acell.mdart;
return *this;
}
/// Get the dart associated with the cell.
Dart_handle dart() { return mdart; }
/// Get the dart associated with the cell.
Dart_const_handle dart() const { return mdart; }
/// Set the dart associated with the cell.
void set_dart(Dart_handle adart) { mdart = adart; }
/// Test if the cell is valid.
/// A cell is valid if its dart is not NULL.
bool is_valid() const
{ return mdart!=NULL; }
protected:
/// Contructor without parameter.
Cell_attribute_without_info() : mdart(NULL),
mrefcounting(0)
{}
/// Copy contructor.
Cell_attribute_without_info(const Cell_attribute_without_info& acell):
mdart(acell.mdart),
mrefcounting(0)
{}
/// Increment the reference counting.
void inc_nb_refs()
{ ++mrefcounting; }
/// Decrement the reference counting.
void dec_nb_refs()
{
CGAL_assertion( mrefcounting>0 );
--mrefcounting;
}
public:
/// Get the reference counting.
unsigned int get_nb_refs() const
{ return mrefcounting; }
void * for_compact_container() const
{ return mdart.for_compact_container(); }
void * & for_compact_container()
{ return mdart.for_compact_container(); }
private:
/// The dart handle associated with the cell.
Dart_handle mdart;
/// Reference counting: the number of darts linked to this cell.
unsigned int mrefcounting;
};
/// Cell associated with an attribute, with or without info depending
/// if Info==void.
template <class Refs, class Info_=void, class Tag_=Tag_true,
class OnMerge=Null_functor,
class OnSplit=Null_functor>
class Cell_attribute;
/// Specialization when Info==void.
template <class Refs, class Tag_,
class OnMerge, class OnSplit>
class Cell_attribute<Refs, void, Tag_,
OnSplit, OnMerge> :
public Cell_attribute_without_info<Refs, Tag_,
OnSplit, OnMerge>
{
template < unsigned int d_, class Refs_,
class Items_, class Alloc_ >
friend class Combinatorial_map_base;
template <class T, class Alloc_>
friend class Compact_container;
public:
typedef Tag_ Supports_cell_dart;
typedef typename Refs::Dart_handle Dart_handle;
typedef typename Refs::Dart_const_handle Dart_const_handle;
typedef typename Refs::Alloc Alloc;
typedef OnMerge On_merge;
typedef OnSplit On_split;
};
/// Specialization when Info!=void.
template <class Refs, class Info_, class Tag_,
class OnMerge, class OnSplit>
class Cell_attribute :
public Cell_attribute_without_info<Refs, Tag_,
OnMerge, OnSplit>,
public Info_for_cell_attribute<Info_>
{
template < unsigned int d_, class Refs_,
class Items_, class Alloc_ >
friend class Combinatorial_map_base;
template <class T, class Alloc_>
friend class Compact_container;
public:
typedef Tag_ Supports_cell_dart;
typedef typename Refs::Dart_handle Dart_handle;
typedef typename Refs::Dart_const_handle Dart_const_handle;
typedef typename Refs::Alloc Alloc;
typedef OnMerge On_merge;
typedef OnSplit On_split;
typedef Info_ Info;
protected:
/// Default contructor.
Cell_attribute()
{}
/// Contructor with an attribute in parameter.
Cell_attribute(const Info_& ainfo) : Info_for_cell_attribute<Info_>(ainfo)
{}
};
} // namespace CGAL
#endif // CGAL_CELL_ATTRIBUTE_H //
// EOF //
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