WSJT-X/boost/libs/iterator/example/node_iterator1.hpp

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// Copyright David Abrahams 2004. Use, modification and distribution is
// subject to the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#ifndef NODE_ITERATOR1_DWA2004110_HPP
# define NODE_ITERATOR1_DWA2004110_HPP
# include "node.hpp"
# include <boost/iterator/iterator_facade.hpp>
class node_iterator
: public boost::iterator_facade<
node_iterator
, node_base
, boost::forward_traversal_tag
>
{
public:
node_iterator()
: m_node(0)
{}
explicit node_iterator(node_base* p)
: m_node(p)
{}
private:
friend class boost::iterator_core_access;
void increment()
{ m_node = m_node->next(); }
bool equal(node_iterator const& other) const
{ return this->m_node == other.m_node; }
node_base& dereference() const
{ return *m_node; }
node_base* m_node;
};
#endif // NODE_ITERATOR1_DWA2004110_HPP