mirror of https://github.com/CGAL/cgal
83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
// Copyright (c) 2005 INRIA (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org); you may redistribute it under
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// the terms of the Q Public License version 1.0.
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// See the file LICENSE.QPL distributed with CGAL.
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//
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// Licensees holding a valid commercial license may use this file in
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// accordance with the commercial license agreement provided with the software.
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//
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// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
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// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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//
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// $URL$
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// $Id$
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//
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//
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// Author(s) : Laurent Saboret, Pierre Alliez, Bruno Levy
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#ifndef CGAL_CONVERTIBLE_ITERATOR_PROJECT_H
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#define CGAL_CONVERTIBLE_ITERATOR_PROJECT_H
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#include <CGAL/Iterator_project.h>
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CGAL_BEGIN_NAMESPACE
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/// This class inherits from Iterator_project<> +
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/// adds a conversion to handle/const handle.
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/// See Iterator_project<> documentation.
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template<class I, ///< Internal iterator.
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class Fct, ///< Conversion functor.
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class ConstHandle, ///< Const-handle type to convert to.
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class Handle = void* ///< Non-const-handle type to convert to (void*=none).
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>
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class Convertible_iterator_project
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: public Iterator_project<I, Fct>
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{
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typedef Iterator_project<I, Fct> Base;
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typedef Convertible_iterator_project Self;
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public:
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/// CREATION
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/// --------
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Convertible_iterator_project() {}
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Convertible_iterator_project(Base base) : Base(base) {}
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Convertible_iterator_project(const Self& it) : Base(it) {}
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Self& operator=(const Self& it) { Base::operator=(it); return *this; }
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/// OPERATIONS Forward Category
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/// ---------------------------
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bool operator==(CGAL_NULL_TYPE ptr) const { return (const Base&)*this == ptr; }
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bool operator!=(CGAL_NULL_TYPE ptr) const { return ! (*this == ptr); }
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bool operator==(const Self& it) const { return (const Base&)*this == it; }
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bool operator!=(const Self& it) const { return ! (*this == it); }
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Self& operator++() { Base::operator++(); return *this; }
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Self operator++(int) { Self tmp(*this); ++(*this); return tmp; }
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/// OPERATIONS Bidirectional Category
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/// ---------------------------------
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Self& operator--() { Base::operator--(); return *this; }
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Self operator--(int) { Self tmp(*this); --(*this); return tmp; }
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/// EXTRA CASTS
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/// -----------
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operator Handle() { return Base::operator->(); }
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operator ConstHandle() const { return Base::operator->(); }
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};
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CGAL_END_NAMESPACE
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#endif //CGAL_CONVERTIBLE_ITERATOR_PROJECT_H
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