iterable_enum.h

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#pragma once

template <typename T> class IterableEnum {
public:
  class Iterator {
  public:
    Iterator(int value) : m_value_(value) {}

    T operator*(void)const { return (T)m_value_; }

    void operator++(void) { ++m_value_; }

    bool operator!=(Iterator rhs) { return m_value_ != rhs.m_value_; }

  private:
    int m_value_; 
  };
};

template <typename T>
typename IterableEnum<T>::Iterator begin(IterableEnum<T>) {
  return typename IterableEnum<T>::Iterator((int)T::First);
}

template <typename T> typename IterableEnum<T>::Iterator end(IterableEnum<T>) {
  return typename IterableEnum<T>::Iterator(((int)T::Last) + 1);
}