// Copyright {Jagger Software Limited} 2003

#if !defined CONTAINER_RANGE_VIEW_INCLUDED || \
     defined CONTAINER_RANGE_VIEW_TEMPLATE_INCLUDED
#error      "container/range_view-tempate.hpp" #included directly
#endif

#define      CONTAINER_RANGE_VIEW_TEMPLATE_INCLUDED

#include <algorithm>

namespace container // range_view - 'tors
{
    template<typename iterator>
    range_view<iterator>::range_view(iterator start, iterator finish)
        : begin(start)
        , end(finish)
    {
    }

    template<typename iterator>
    size_t 
    range_view<iterator>::size() const
    {
        return ::std::distance(begin, end);
    }
}

namespace container // range_view - convenience
{
    template<typename iterator>
    range_view<iterator> 
    make_range_view(iterator begin, iterator end)
    {
        return range_view<iterator>(begin, end);
    }
}

namespace container // range_view - in/equality
{
    template<typename iterator>
    bool operator==(const range_view<iterator> & lhs, const range_view<iterator> & rhs)
    {
        return lhs.begin == rhs.begin && lhs.end == rhs.end;
    }
    
    template<typename iterator>
    bool operator!=(const range_view<iterator> & lhs, const range_view<iterator> & rhs)
    {
        return !(lhs == rhs);
    }
}