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1 | // 2003-04-26 Petur Runolfsson <peturr02@ru.is> |
2 | ||
2aa89cbb | 3 | // Copyright (C) 2003, 2004 Free Software Foundation |
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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 | |
8 | // Free Software Foundation; either version 2, or (at your option) | |
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 | |
17 | // with this library; see the file COPYING. If not, write to the Free | |
83f51799 | 18 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
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19 | // USA. |
20 | ||
21 | // 27.3 Standard iostream objects | |
22 | ||
23 | // Check that standard streams can be used from constructors and | |
24 | // destructors of static objects, provided that an instance of | |
25 | // ios_base::Init has been constructed. | |
26 | ||
27 | void init_standard_streams(); | |
28 | int use_standard_streams(); | |
29 | ||
30 | struct Strange | |
31 | { | |
32 | int i; | |
33 | ||
34 | Strange() | |
35 | { | |
36 | init_standard_streams(); | |
37 | i = use_standard_streams(); | |
38 | } | |
39 | ||
40 | ~Strange() | |
41 | { | |
42 | use_standard_streams(); | |
43 | init_standard_streams(); | |
44 | } | |
45 | }; | |
46 | ||
47 | static Strange static_ob; | |
48 | ||
49 | #include <testsuite_hooks.h> | |
50 | #include <iostream> | |
51 | ||
52 | void init_standard_streams() | |
53 | { | |
54 | std::ios_base::Init init; | |
55 | } | |
56 | ||
57 | int use_standard_streams() | |
58 | { | |
59 | std::cout << "Hello, world!" << std::endl; | |
60 | std::cerr << "World, hello!" << std::endl; | |
61 | ||
62 | int ret = std::ios_base::xalloc(); | |
63 | std::cin.iword(ret) = ret + 1; | |
64 | std::cout.iword(ret) = ret + 2; | |
65 | std::cerr.iword(ret) = ret + 3; | |
66 | std::clog.iword(ret) = ret + 4; | |
67 | return ret; | |
68 | } | |
69 | ||
70 | void test05() | |
71 | { | |
11f10e6b | 72 | bool test __attribute__((unused)) = true; |
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73 | int i = static_ob.i; |
74 | ||
75 | VERIFY( std::cin.iword(i) == i + 1 ); | |
76 | VERIFY( std::cout.iword(i) == i + 2 ); | |
77 | VERIFY( std::cerr.iword(i) == i + 3 ); | |
78 | VERIFY( std::clog.iword(i) == i + 4 ); | |
79 | } | |
80 | ||
81 | int main() | |
82 | { | |
83 | test05(); | |
84 | return 0; | |
85 | } |