Is there a range class in C++11 for use with range based for loops?

Question

I found myself writing this just a bit ago:

template 
class range_class {
 public:
   class iterator {
      friend c         


        

Answer 1

Here is a simpler form which is working nicely for me. Are there any risks in my approach?

r_iterator is a type which behaves, as much as possible, like a long int. Therefore many operators such as == and ++, simply pass through to the long int. I 'expose' the underlying long int via the operator long int and operator long int & conversions.

#include 
using namespace std;

struct r_iterator {
        long int value;
        r_iterator(long int _v) : value(_v) {}
        operator long int () const { return value; }
        operator long int& ()      { return value; }
        long int operator* () const { return value; }
};
template 
struct range {
        static r_iterator begin() {return _begin;}
        static r_iterator end  () {return _end;}
};
int main() {
        for(auto i: range<0,10>()) { cout << i << endl; }
        return 0;
}

(Edit: - we can make the methods of range static instead of const.)