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// Boost.Range library
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//
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// Copyright Thorsten Ottosen 2003-2004. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 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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//
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// For more information, see http://www.boost.org/libs/range/
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//
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#ifndef BOOST_RANGE_SUB_RANGE_HPP
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#define BOOST_RANGE_SUB_RANGE_HPP
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#include <boost/range/config.hpp>
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#include <boost/range/iterator_range.hpp>
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#include <boost/range/value_type.hpp>
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#include <boost/range/result_iterator.hpp>
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#include <boost/range/size_type.hpp>
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#include <boost/range/difference_type.hpp>
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#include <boost/assert.hpp>
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namespace boost
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{
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template< class ForwardRange >
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class sub_range : public iterator_range< BOOST_DEDUCED_TYPENAME range_result_iterator<ForwardRange>::type >
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{
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typedef BOOST_DEDUCED_TYPENAME range_result_iterator<ForwardRange>::type iterator_t;
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typedef iterator_range< iterator_t > base;
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typedef BOOST_DEDUCED_TYPENAME base::impl impl;
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public:
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typedef BOOST_DEDUCED_TYPENAME range_value<ForwardRange>::type value_type;
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typedef BOOST_DEDUCED_TYPENAME range_result_iterator<ForwardRange>::type iterator;
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typedef BOOST_DEDUCED_TYPENAME range_const_iterator<ForwardRange>::type const_iterator;
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typedef BOOST_DEDUCED_TYPENAME range_difference<ForwardRange>::type difference_type;
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typedef BOOST_DEDUCED_TYPENAME range_size<ForwardRange>::type size_type;
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typedef BOOST_DEDUCED_TYPENAME base::reference reference;
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typedef BOOST_DEDUCED_TYPENAME iterator_reference<const_iterator>::type const_reference;
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public:
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sub_range() : base()
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{ }
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/*
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template< class ForwardRange2 >
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sub_range( sub_range<ForwardRange2> r ) :
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#if BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, <= 800 )
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base( impl::adl_begin( r ), impl::adl_end( r ) )
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#else
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base( r )
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#endif */
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template< class ForwardRange2 >
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sub_range( ForwardRange2& r ) :
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#if BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, <= 800 )
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base( impl::adl_begin( r ), impl::adl_end( r ) )
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#else
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base( r )
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#endif
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{ }
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template< class ForwardRange2 >
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sub_range( const ForwardRange2& r ) :
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#if BOOST_WORKAROUND(BOOST_INTEL_CXX_VERSION, <= 800 )
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base( impl::adl_begin( r ), impl::adl_end( r ) )
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#else
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base( r )
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#endif
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{ }
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template< class Iter >
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sub_range( Iter first, Iter last ) :
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base( first, last )
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{ }
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template< class ForwardRange2 >
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sub_range& operator=( ForwardRange2& r )
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{
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base::operator=( r );
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return *this;
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}
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template< class ForwardRange2 >
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sub_range& operator=( const ForwardRange2& r )
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{
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base::operator=( r );
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return *this;
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}
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sub_range& operator=( sub_range r )
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{
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//
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// argument passed by value to avoid
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// const_iterator to iterator conversion
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//
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base::operator=( r );
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return *this;
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}
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public:
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iterator begin() { return base::begin(); }
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const_iterator begin() const { return base::begin(); }
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iterator end() { return base::end(); }
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const_iterator end() const { return base::end(); }
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size_type size() const { return base::size(); }
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public: // convenience
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reference front()
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{
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return base::front();
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}
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const_reference front() const
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{
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return base::front();
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}
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reference back()
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{
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return base::back();
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}
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const_reference back() const
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{
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return base::back();
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}
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reference operator[]( size_type sz )
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{
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return base::operator[](sz);
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}
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const_reference operator[]( size_type sz ) const
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{
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return base::operator[](sz);
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}
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};
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template< class ForwardRange, class ForwardRange2 >
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inline bool operator==( const sub_range<ForwardRange>& l,
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const sub_range<ForwardRange2>& r )
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{
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return iterator_range_detail::equal( l, r );
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}
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template< class ForwardRange, class ForwardRange2 >
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inline bool operator!=( const sub_range<ForwardRange>& l,
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const sub_range<ForwardRange2>& r )
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{
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return !iterator_range_detail::equal( l, r );
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}
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template< class ForwardRange, class ForwardRange2 >
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inline bool operator<( const sub_range<ForwardRange>& l,
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const sub_range<ForwardRange2>& r )
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{
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return iterator_range_detail::less_than( l, r );
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}
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} // namespace 'boost'
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#endif
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