1 // { dg-do compile { target c++11 } }
2
3 // Copyright (C) 2009-2019 Free Software Foundation, Inc.
4 //
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
9 // any later version.
10
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
19
20 #include <functional>
21
22 // libstdc++/40273
main()23 int main()
24 {
25 std::function<void* ()> f = 0;
26 if (f != 0)
27 {
28 }
29
30 if (0 != f)
31 {
32 }
33
34 if (f == 0)
35 {
36 }
37
38 if (0 == f)
39 {
40 }
41 return 0;
42 }
43
44