1 // Copyright (C) 2016-2018 Free Software Foundation, Inc.
2 //
3 // This file is part of the GNU ISO C++ Library.  This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
7 // any later version.
8 
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12 // GNU General Public License for more details.
13 
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3.  If not see
16 // <http://www.gnu.org/licenses/>.
17 
18 // { dg-do compile { target c++11 } }
19 
20 #include <functional>
21 
22 // Reduced from c++/69005
23 struct Foo {
24   std::function<void(Foo)> f;
25 };
26 
27 extern Foo exfoo;
28 Foo f(exfoo);
29 Foo& r = f = exfoo;
30