1 // Copyright (C) 2008-2017 Free Software Foundation, Inc.
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)
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.
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/>.
18 // { dg-do run { target c++11 } }
22 #include <testsuite_hooks.h>
28 // This usage isn't supported by the current draft.
29 // std::string result = (std::ostringstream() << i).str();
30 std::ostringstream() << i
;
31 std::string
result ("1742");
33 std::istringstream(result
) >> i2
;
37 struct X
{ bool as_rvalue
; };
39 void operator>>(std::istream
&, X
& x
) { x
.as_rvalue
= false; }
40 void operator>>(std::istream
&, X
&& x
) { x
.as_rvalue
= true; }
42 // LWG 2328 Rvalue stream extraction should use perfect forwarding
47 std::istringstream is
;
48 auto& ref1
= (std::move(is
) >> x
);
49 VERIFY( &ref1
== &is
);
50 VERIFY( x
.as_rvalue
== false );
51 auto& ref2
= (std::move(is
) >> std::move(x
));
52 VERIFY( &ref2
== &is
);
53 VERIFY( x
.as_rvalue
== true );
56 std::istringstream("x") >> &arr
[0];
57 std::istringstream("x") >> arr
;