1// { dg-do compile }
2
3// Copyright (C) 2004 Free Software Foundation, Inc.
4// Contributed by Nathan Sidwell 14 Dec 2004 <nathan@codesourcery.com>
5
6// PR 18981. ICE
7// Origin:  Andreas Schwab <schwab@suse.de>
8
9template <class T>
10struct tree {
11  struct iterator;
12  struct sibling_iterator {
13    friend struct tree<T>::iterator;
14  };
15};
16