75 lines
2.1 KiB
C++
75 lines
2.1 KiB
C++
// Boost.Geometry (aka GGL, Generic Geometry Library)
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// Copyright (c) 2007-2012 Barend Gehrels, Amsterdam, the Netherlands.
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// Copyright (c) 2008-2012 Bruno Lalande, Paris, France.
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// Copyright (c) 2009-2012 Mateusz Loskot, London, UK.
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// This file was modified by Oracle on 2020.
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// Modifications copyright (c) 2020 Oracle and/or its affiliates.
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// Contributed and/or modified by Adam Wulkiewicz, on behalf of Oracle
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// Parts of Boost.Geometry are redesigned from Geodan's Geographic Library
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// (geolib/GGL), copyright (c) 1995-2010 Geodan, Amsterdam, the Netherlands.
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// Use, modification and distribution is subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_GEOMETRY_ITERATORS_BASE_HPP
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#define BOOST_GEOMETRY_ITERATORS_BASE_HPP
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#include <type_traits>
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#include <boost/iterator/iterator_adaptor.hpp>
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#include <boost/iterator/iterator_categories.hpp>
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#ifndef DOXYGEN_NO_DETAIL
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namespace boost { namespace geometry { namespace detail { namespace iterators
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{
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template
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<
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typename DerivedClass,
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typename Iterator,
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typename TraversalFlag = boost::bidirectional_traversal_tag
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>
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struct iterator_base
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: public boost::iterator_adaptor
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<
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DerivedClass,
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Iterator,
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boost::use_default,
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std::conditional_t
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<
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std::is_convertible
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<
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typename boost::iterator_traversal<Iterator>::type,
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boost::random_access_traversal_tag
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>::value,
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TraversalFlag,
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boost::use_default
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>
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>
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{
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// Define operator cast to Iterator to be able to write things like Iterator it = myit++
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inline operator Iterator() const
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{
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return this->base();
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}
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/*inline bool operator==(Iterator const& other) const
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{
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return this->base() == other;
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}
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inline bool operator!=(Iterator const& other) const
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{
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return ! operator==(other);
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}*/
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};
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}}}} // namespace boost::geometry::detail::iterators
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#endif
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#endif // BOOST_GEOMETRY_ITERATORS_BASE_HPP
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