#pragma once

#include <utility>

namespace lambda {

template <typename Iter1, typename Iter2>

class iterator_range

{

public:

template<typename _Iter1, typename _Iter2>

iterator_range(_Iter1&& begin, _Iter2&& end, typename std::enable_if<std::is_convertible<Iter1, _Iter1>::value && std::is_convertible<Iter2, _Iter1>::value>::type* = 0) :

m_begin(std::forward<_Iter1>(begin)),

m_end(std::forward<_Iter2>(end))

{

}

Iter1 & begin() { return m_begin; }

Iter2 & end() { return m_end; }

private:

Iter1 m_begin;

Iter2 m_end;

};

template<typename _Iter1, typename _Iter2>

iterator_range<_Iter1, _Iter2> make_iterator_range(_Iter1&& begin, _Iter2&& end)

{

return iterator_range<_Iter1, _Iter2>(std::forward<_Iter1>(begin), std::forward<_Iter2>(end));

}

}