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 <tuple>
21 
22 struct S {
23   int i_;
24 
25   template<typename T>
SS26   S(T&& i)
27     noexcept(noexcept(i_ = i))
28   { i_ = i; }
29 
SS30   S() noexcept : i_{0} {};
31 };
32 
main()33 int main()
34 {
35   std::tuple<S&&>(std::forward_as_tuple(S{}));
36   return 0;
37 }
38