Using C++11 auto for syntax with ranges

range.h

#ifndef range_h__
#define range_h__

#include <iterator>

template<typename T>
class range_iterator
    : public std::iterator<std::forward_iterator_tag, T>
{
    T _current;
    T _step;

public:
    range_iterator(T current, T step)
        : _current(current), _step(step) { }

    range_iterator& operator++() { _current += _step; return *this; }

    bool operator==(range_iterator const& other) const { return _current == other._current; }
    bool operator!=(range_iterator const& other) const { return !(*this == other); }

    value_type operator*() const { return _current; }
    value_type* operator->() const { return &_current; }
};

template<typename T>
class range
{
    T _begin;
    T _end;
    T _step;

public:
    range(T begin, T end, T step = 1)
        : _begin(begin), _end(end), _step(step) { }

    range_iterator<T> begin()
    {
        return range_iterator<T>(_begin, _step);
    }

    range_iterator<T> end()
    {
        return range_iterator<T>(_end, _step);
    }
};

template<typename T>
range<T> make_range(T begin, T end, T step = 1)
{
    return range<T>(begin, end, step);
}

#endif // range_h__

std::size_t count = 0;

for (auto i : make_range(0, 10))
    ++count;