// Copyright (c) 1994 James Clark

// See the file COPYING for copying permission.

#ifndef ISetIter_INCLUDED

#define ISetIter_INCLUDED

#include <stddef.h>

#include "ISet.h"

#ifdef SP_NAMESPACE

namespace SP_NAMESPACE {

#endif

template<class T>

class ISetIter {

public:

  ISetIter(const ISet<T> &s) : p_(&s), i_(0) { }

  // min and max are not changed if 0 is returned.

  int next(T &min, T &max)

  {

    if (i_ < p_->r_.size()) {

      min = p_->r_[i_].min;

      max = p_->r_[i_].max;

      i_++;

      return 1;

    }

    else

      return 0;

  }

private:

  const ISet<T> *p_;

  size_t i_;

};

#ifdef SP_NAMESPACE

}

#endif

#endif /* ISetIter_INCLUDED */