1 // Copyright (C) 2010-2019 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 // 20.7.11 Function template bind
19
20 // PR c++/57899
21 // { dg-do compile { target c++11 } }
22
23 #include <functional>
24 using std::bind;
25 using std::placeholders::_1;
26
27 struct S { int i; };
28
29 struct P { S s; };
30
31 struct get_s
32 {
operator ()get_s33 const S& operator()(const P& p) const { return p.s; }
34 } gs;
35
gi(const S & s)36 int gi(const S& s) { return s.i; }
37
cmp(int,int)38 bool cmp(int, int) { return true; }
39
main()40 int main()
41 {
42 P p{};
43 auto f1 = bind(gs, _1);
44 auto f2 = bind(gi, f1);
45 auto f3 = bind(cmp, f2, 5);
46 f3(p);
47 }
48