| // Boost.Range library |
| // |
| // Copyright Neil Groves 2008. Use, modification and |
| // distribution is subject to the Boost Software Licence, 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/iterator/counting_iterator.hpp> |
| #include <boost/utility.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_value<const Range>::type> > |
| counting_range(const Range& rng) |
| { |
| typedef counting_iterator<BOOST_DEDUCED_TYPENAME range_value<const Range>::type> counting_iterator_t; |
| typedef iterator_range<counting_iterator_t> result_t; |
| return boost::empty(rng) |
| ? result_t() |
| : result_t( |
| counting_iterator_t(*boost::begin(rng)), |
| counting_iterator_t(*boost::prior(boost::end(rng)))); |
| } |
| |
| template<class Range> |
| inline iterator_range<counting_iterator<BOOST_DEDUCED_TYPENAME range_value<Range>::type> > |
| counting_range(Range& rng) |
| { |
| typedef counting_iterator<BOOST_DEDUCED_TYPENAME range_value<Range>::type> counting_iterator_t; |
| typedef iterator_range<counting_iterator_t> result_t; |
| return boost::empty(rng) |
| ? result_t() |
| : result_t( |
| counting_iterator_t(*boost::begin(rng)), |
| counting_iterator_t(*boost::prior(boost::end(rng)))); |
| } |
| } // namespace boost |
| |
| #if BOOST_MSVC >= 1400 |
| #pragma warning(pop) |
| #endif |
| |
| #endif // include guard |
