#ifndef T_ITERATOTH
#define T_ITERATOTH
#include <cstdlib>   //for exit
#include <iterator>
using namespace std;

template <class T = int, class DIFFERENCE = ptrdiff_t>
class t_iterator: public iterator<random_access_iterator_tag, T> {
	bool at_end;   //true if we have reached end of range
	T t;
	const T end;
public:
	t_iterator(): at_end(true), end() {}

	t_iterator(const T& initial_t, const T& initial_end):
		at_end(false), t(initial_t), end(initial_end) {}

	operator*() and operator== as in t_iterator2.h

	t_iterator& operator++() {
		if (at_end) {
			cerr and exit;
		}

		if (t == end) {
			at_end = true;
		} else {
			++t;
		}
		return *this;
	}

	//etc.
};

//etc.
#endif