root/trunk/cbear.berlios.de/range/move.hpp

#ifndef CBEAR_BERLIOS_DE_RANGE_MOVE_HPP_INCLUDED
#define CBEAR_BERLIOS_DE_RANGE_MOVE_HPP_INCLUDED

#include <cbear.berlios.de/move/main.hpp>
#include <cbear.berlios.de/range/sub_range.hpp>

namespace cbear_berlios_de
{
namespace range
{

namespace detail
{

class move_copy_t
{
public:

        template<class Container, class OutputIterator>
        static OutputIterator do_(Container &From, OutputIterator To)
        {
                return ::std::copy(range::begin(From), range::end(From), To);
        }

};

class move_common_t
{
public:

        template<class Container, class OutputIterator>
        static OutputIterator do_(Container &From, OutputIterator To)
        {
                typedef typename sub_range<Container>::type iterator_range_t;
                for(iterator_range_t R(From); !R.empty(); ++R.begin(), ++To)
                {
                        ::cbear_berlios_de::move::assign(*To, R.front());
                }
                return To;
        }

};

template<class Container, class OutputIterator>
class move_t: 
        public meta::if_c< 
                !::boost::is_class<typename traits<Container>::value_type>::value,
                move_copy_t,
                move_common_t>::type
{
};

}

template<class Container, class OutputIterator>
iterator_range<OutputIterator> move(Container const &From, OutputIterator To)
{ 
        return iterator_range<OutputIterator>(
                To, detail::move_t<Container const, OutputIterator>::do_(From, To));
}

template<class Container, class OutputIterator>
iterator_range<OutputIterator> move(Container &From, OutputIterator To)
{
        return iterator_range<OutputIterator>(
                To, detail::move_t<Container, OutputIterator>::do_(From, To));
}

}
}

#endif