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a5544970 | 1 | // Copyright (C) 2008-2019 Free Software Foundation, Inc. |
e7f1930f JM |
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 | |
4fcf0830 | 6 | // Free Software Foundation; either version 3, or (at your option) |
e7f1930f JM |
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 | |
4fcf0830 JM |
15 | // with this library; see the file COPYING3. If not see |
16 | // <http://www.gnu.org/licenses/>. | |
e7f1930f | 17 | |
f7717203 | 18 | // { dg-do run { target c++11 } } |
e7f1930f JM |
19 | |
20 | #include <sstream> | |
21 | #include <string> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | void | |
25 | test01() | |
26 | { | |
27 | int i = 1742; | |
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"); | |
32 | int i2; | |
33 | std::istringstream(result) >> i2; | |
34 | VERIFY (i == i2); | |
35 | } | |
36 | ||
07c772ed JW |
37 | struct X { bool as_rvalue; }; |
38 | ||
39 | void operator>>(std::istream&, X& x) { x.as_rvalue = false; } | |
40 | void operator>>(std::istream&, X&& x) { x.as_rvalue = true; } | |
41 | ||
42 | // LWG 2328 Rvalue stream extraction should use perfect forwarding | |
43 | void | |
44 | test02() | |
45 | { | |
46 | X x; | |
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 ); | |
54 | ||
55 | char arr[2]; | |
56 | std::istringstream("x") >> &arr[0]; | |
57 | std::istringstream("x") >> arr; | |
58 | } | |
59 | ||
e7f1930f JM |
60 | int |
61 | main() | |
62 | { | |
63 | test01(); | |
07c772ed | 64 | test02(); |
e7f1930f JM |
65 | return 0; |
66 | } |