e955c94ed3
Listing the "Blender Foundation" as copyright holder implied the Blender Foundation holds copyright to files which may include work from many developers. While keeping copyright on headers makes sense for isolated libraries, Blender's own code may be refactored or moved between files in a way that makes the per file copyright holders less meaningful. Copyright references to the "Blender Foundation" have been replaced with "Blender Authors", with the exception of `./extern/` since these this contains libraries which are more isolated, any changed to license headers there can be handled on a case-by-case basis. Some directories in `./intern/` have also been excluded: - `./intern/cycles/` it's own `AUTHORS` file is planned. - `./intern/opensubdiv/`. An "AUTHORS" file has been added, using the chromium projects authors file as a template. Design task: #110784 Ref !110783.
89 lines
2.1 KiB
C++
89 lines
2.1 KiB
C++
/* SPDX-FileCopyrightText: 2023 Blender Authors
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0-or-later */
|
|
|
|
#pragma once
|
|
|
|
/** \file
|
|
* \ingroup freestyle
|
|
* \brief Classes defining the basic "Iterator" design pattern
|
|
*/
|
|
|
|
#include <iterator>
|
|
|
|
#ifdef WITH_CXX_GUARDEDALLOC
|
|
# include "MEM_guardedalloc.h"
|
|
#endif
|
|
|
|
namespace Freestyle {
|
|
|
|
// use for iterators definitions
|
|
template<class Element> class Nonconst_traits;
|
|
|
|
template<class Element> class Const_traits {
|
|
public:
|
|
typedef Element value_type;
|
|
typedef const Element &reference;
|
|
typedef const Element *pointer;
|
|
typedef ptrdiff_t difference_type;
|
|
typedef Nonconst_traits<Element> Non_const_traits;
|
|
|
|
#ifdef WITH_CXX_GUARDEDALLOC
|
|
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:Const_traits")
|
|
#endif
|
|
};
|
|
|
|
template<class Element> class Nonconst_traits {
|
|
public:
|
|
typedef Element value_type;
|
|
typedef Element &reference;
|
|
typedef Element *pointer;
|
|
typedef ptrdiff_t difference_type;
|
|
typedef Nonconst_traits<Element> Non_const_traits;
|
|
|
|
#ifdef WITH_CXX_GUARDEDALLOC
|
|
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:Nonconst_traits")
|
|
#endif
|
|
};
|
|
|
|
class InputIteratorTag_Traits {
|
|
public:
|
|
typedef std::input_iterator_tag iterator_category;
|
|
|
|
#ifdef WITH_CXX_GUARDEDALLOC
|
|
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:InputIteratorTag_Traits")
|
|
#endif
|
|
};
|
|
|
|
class BidirectionalIteratorTag_Traits {
|
|
public:
|
|
typedef std::bidirectional_iterator_tag iterator_category;
|
|
|
|
#ifdef WITH_CXX_GUARDEDALLOC
|
|
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:BidirectionalIteratorTag_Traits")
|
|
#endif
|
|
};
|
|
|
|
template<class Traits, class IteratorTagTraits> class IteratorBase {
|
|
public:
|
|
virtual ~IteratorBase() {}
|
|
|
|
virtual bool begin() const = 0;
|
|
virtual bool end() const = 0;
|
|
|
|
typedef typename IteratorTagTraits::iterator_category iterator_category;
|
|
typedef typename Traits::value_type value_type;
|
|
typedef typename Traits::difference_type difference_type;
|
|
typedef typename Traits::pointer pointer;
|
|
typedef typename Traits::reference reference;
|
|
|
|
protected:
|
|
IteratorBase() {}
|
|
|
|
#ifdef WITH_CXX_GUARDEDALLOC
|
|
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:IteratorBase")
|
|
#endif
|
|
};
|
|
|
|
} /* namespace Freestyle */
|