c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
91 lines
2.0 KiB
C++
91 lines
2.0 KiB
C++
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#pragma once
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/** \file
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* \ingroup freestyle
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* \brief Classes defining the basic "Iterator" design pattern
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*/
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#include <iterator>
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#ifdef WITH_CXX_GUARDEDALLOC
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# include "MEM_guardedalloc.h"
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#endif
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namespace Freestyle {
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// use for iterators definitions
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template<class Element> class Nonconst_traits;
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template<class Element> class Const_traits {
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public:
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typedef Element value_type;
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typedef const Element &reference;
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typedef const Element *pointer;
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typedef ptrdiff_t difference_type;
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typedef Nonconst_traits<Element> Non_const_traits;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:Const_traits")
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#endif
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};
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template<class Element> class Nonconst_traits {
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public:
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typedef Element value_type;
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typedef Element &reference;
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typedef Element *pointer;
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typedef ptrdiff_t difference_type;
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typedef Nonconst_traits<Element> Non_const_traits;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:Nonconst_traits")
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#endif
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};
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class InputIteratorTag_Traits {
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public:
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typedef std::input_iterator_tag iterator_category;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:InputIteratorTag_Traits")
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#endif
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};
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class BidirectionalIteratorTag_Traits {
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public:
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typedef std::bidirectional_iterator_tag iterator_category;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:BidirectionalIteratorTag_Traits")
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#endif
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};
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template<class Traits, class IteratorTagTraits> class IteratorBase {
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public:
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virtual ~IteratorBase()
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{
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}
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virtual bool begin() const = 0;
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virtual bool end() const = 0;
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typedef typename IteratorTagTraits::iterator_category iterator_category;
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typedef typename Traits::value_type value_type;
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typedef typename Traits::difference_type difference_type;
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typedef typename Traits::pointer pointer;
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typedef typename Traits::reference reference;
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protected:
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IteratorBase()
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{
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}
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:IteratorBase")
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#endif
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};
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} /* namespace Freestyle */
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