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Editing: counting_range.hpp
// Copyright Neil Groves 2010. 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) // // // For more information, see http://www.boost.org/libs/range/ // #ifndef BOOST_RANGE_COUNTING_RANGE_HPP_INCLUDED #define BOOST_RANGE_COUNTING_RANGE_HPP_INCLUDED #include <boost/config.hpp> #if BOOST_MSVC >= 1400 #pragma warning(push) #pragma warning(disable : 4244) #endif #include <boost/range/iterator_range_core.hpp> #include <boost/range/value_type.hpp> #include <boost/range/iterator.hpp> #include <boost/iterator/counting_iterator.hpp> namespace boost { template<class Value> inline iterator_range<counting_iterator<Value> > counting_range(Value first, Value last) { typedef counting_iterator<Value> counting_iterator_t; typedef iterator_range<counting_iterator_t> result_t; return result_t(counting_iterator_t(first), counting_iterator_t(last)); } template<class Range> inline iterator_range< counting_iterator< BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type > > counting_range(const Range& rng) { typedef counting_iterator< BOOST_DEDUCED_TYPENAME range_iterator<const Range>::type > counting_iterator_t; typedef iterator_range<counting_iterator_t> result_t; return result_t(counting_iterator_t(boost::begin(rng)), counting_iterator_t(boost::end(rng))); } template<class Range> inline iterator_range< counting_iterator< BOOST_DEDUCED_TYPENAME range_iterator<Range>::type > > counting_range(Range& rng) { typedef counting_iterator< BOOST_DEDUCED_TYPENAME range_iterator<Range>::type > counting_iterator_t; typedef iterator_range<counting_iterator_t> result_t; return result_t(counting_iterator_t(boost::begin(rng)), counting_iterator_t(boost::end(rng))); } } // namespace boost #if BOOST_MSVC >= 1400 #pragma warning(pop) #endif #endif // include guard
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