Python-like range implementation with C++11

python_like_range.cpp

#include <iostream>

template<typename T>
class range_iterator {
  T cur_;
  const T step_ = 1;

public:
  range_iterator(T init) : cur_{init} {}

  range_iterator& operator++() {
    cur_ += step_;
    return *this;
  }

  bool operator!=(const range_iterator<T> &rhs) const {
    return cur_ != rhs.cur_;
  }

  T operator*() const {
    return cur_;
  }
};

template<typename T>
class range_impl {
  const T start_;
  const T stop_;

public:
  range_impl(T start, T stop) :
    start_{start}, stop_{stop} {}

  range_iterator<T> begin() const {
    return range_iterator<T>{start_};
  }

  range_iterator<T> end() const {
    return range_iterator<T>{stop_};
  }
};

template<typename T>
range_impl<T> range(const T start, const T stop) {
  return range_impl<T>{start, stop};
}

int main() {
  for (int i : range(1, 4))
    std::cout << i << "\n";
  for (double i : range(7.5, 10.5))
    std::cout << i << "\n";
}