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1 | // 2003-05-01 Petur Runolfsson <peturr02@ru.is> |
2 | ||
cbe34bb5 | 3 | // Copyright (C) 2003-2017 Free Software Foundation, Inc. |
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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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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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 | |
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17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 27.3 Standard iostream objects | |
21 | ||
22 | // Check that standard streams can be used from constructors and | |
23 | // destructors of static objects, provided that an instance of | |
24 | // ios_base::Init has been constructed. | |
25 | ||
26 | void init_standard_streams(); | |
27 | int use_standard_streams(); | |
28 | ||
29 | struct Strange | |
30 | { | |
31 | int i; | |
32 | ||
33 | Strange() | |
34 | { | |
35 | init_standard_streams(); | |
36 | i = use_standard_streams(); | |
37 | } | |
38 | ||
39 | ~Strange() | |
40 | { | |
41 | use_standard_streams(); | |
42 | init_standard_streams(); | |
43 | } | |
44 | }; | |
45 | ||
46 | static Strange static_ob; | |
47 | ||
48 | #include <testsuite_hooks.h> | |
49 | #include <iostream> | |
50 | ||
51 | void init_standard_streams() | |
52 | { | |
53 | std::ios_base::Init init; | |
54 | } | |
55 | ||
56 | int use_standard_streams() | |
57 | { | |
58 | std::wcout << L"Hello, world!" << std::endl; | |
59 | std::wcerr << L"World, hello!" << std::endl; | |
60 | ||
61 | int ret = std::ios_base::xalloc(); | |
62 | std::wcin.iword(ret) = ret + 1; | |
63 | std::wcout.iword(ret) = ret + 2; | |
64 | std::wcerr.iword(ret) = ret + 3; | |
65 | std::wclog.iword(ret) = ret + 4; | |
66 | return ret; | |
67 | } | |
68 | ||
69 | void test05() | |
70 | { | |
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71 | int i = static_ob.i; |
72 | ||
73 | VERIFY( std::wcin.iword(i) == i + 1 ); | |
74 | VERIFY( std::wcout.iword(i) == i + 2 ); | |
75 | VERIFY( std::wcerr.iword(i) == i + 3 ); | |
76 | VERIFY( std::wclog.iword(i) == i + 4 ); | |
77 | } | |
78 | ||
79 | int main() | |
80 | { | |
81 | test05(); | |
82 | return 0; | |
83 | } |