ext-boost/boost/range/counting_range.hpp
2014-12-07 20:45:27 +01:00

77 lines
2.2 KiB
C++

// 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