// 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/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 |