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// { dg-do assemble  }

// PRMS id: g++/13340

class rectangle {

public:

  rectangle();

  int overlaps() const;

};

class region

{

  friend class region_impl;

public:

  region();

  typedef int (region::* region_func)() const;

};

class region_impl  {

  friend class region;

private:

  rectangle content, mbb;

  region_impl *link_p;

  region_impl(const rectangle &content);

public:

  int iterate(region *region_p, region::region_func what,

              const rectangle &clip_rect) const;

  int iterate(region *region_p, region::region_func what,

              const region_impl &clip_rgn) const;

};

int

region_impl::iterate (region *region_p, region::region_func what,

                      const rectangle &clip_rect) const

{

  for (const region_impl *p = this; p != 0 && p->mbb.overlaps();

       p = p->link_p)

    if (p->content.overlaps())

      if (!(region_p->*what)()) return 0;

  return 1;

}

int

region_impl::iterate (region *region_p, region::region_func what,

                      const region_impl &clip_rgn) const

{

  for (const region_impl *p = this; p != 0 && p->mbb.overlaps();

       p = p->link_p)

    if (!clip_rgn.iterate(region_p, what, p->content)) return 0;

  return 1;

}