Range-based for loop template

range.cpp

template <typename T>
struct Range {
    T *_begin, *_end;
    T *begin() { return _begin; }
    T *end() { return _end; }
};

template <typename T>
Range<T> make_range(T *begin, size_t count)
{
    return begin ? Range<T> { begin, begin + count } : Range<T> { nullptr, nullptr };
}

for (auto item_copy : make_range(data_ptr, count)) {}
for (auto &item_ref : make_range(data_ptr, count)) {}