79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
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// Boost.Geometry Index
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//
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// Insert iterator
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//
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// Copyright (c) 2011-2013 Adam Wulkiewicz, Lodz, Poland.
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//
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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_INDEX_INSERTER_HPP
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#define BOOST_GEOMETRY_INDEX_INSERTER_HPP
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#include <iterator>
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/*!
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\defgroup inserters Inserters (boost::geometry::index::)
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*/
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namespace boost { namespace geometry { namespace index {
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template <class Container>
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class insert_iterator :
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public std::iterator<std::output_iterator_tag, void, void, void, void>
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{
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public:
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typedef Container container_type;
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inline explicit insert_iterator(Container & c)
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: container(&c)
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{}
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insert_iterator & operator=(typename Container::value_type const& value)
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{
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container->insert(value);
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return *this;
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}
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insert_iterator & operator* ()
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{
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return *this;
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}
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insert_iterator & operator++ ()
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{
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return *this;
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}
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insert_iterator operator++(int)
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{
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return *this;
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}
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private:
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Container * container;
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};
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/*!
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\brief Insert iterator generator.
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Returns insert iterator capable to insert values to the container
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(spatial index) which has member function insert(value_type const&) defined.
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\ingroup inserters
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\param c The reference to the container (spatial index) to which values will be inserted.
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\return The insert iterator inserting values to the container.
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*/
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template <typename Container>
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insert_iterator<Container> inserter(Container & c)
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{
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return insert_iterator<Container>(c);
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}
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}}} // namespace boost::geometry::index
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#endif // BOOST_GEOMETRY_INDEX_INSERTER_HPP
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