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8d9254fc | 1 | // Copyright (C) 2018-2020 Free Software Foundation, Inc. |
85d0fad4 JW |
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 run { target c++11 } } | |
19 | ||
20 | #include <ios> | |
21 | #include <climits> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | // PR libstdc++/68197 | |
25 | ||
26 | struct sbuf : std::streambuf { } sb; | |
27 | ||
28 | void | |
29 | test01() | |
30 | { | |
31 | std::ios ios(&sb); | |
32 | long& i1 = ios.iword(-1); | |
33 | VERIFY( i1 == 0 ); | |
34 | VERIFY( ios.bad() ); | |
35 | ios.clear(); | |
36 | i1 = 1; | |
37 | VERIFY( ios.iword(-1) == 0 ); | |
38 | VERIFY( ios.bad() ); | |
39 | ios.clear(); | |
40 | long& i2 = ios.iword(INT_MIN); | |
41 | VERIFY( i2 == 0 ); | |
42 | VERIFY( ios.bad() ); | |
43 | ios.clear(); | |
44 | i2 = 2; | |
45 | VERIFY( ios.iword(INT_MIN) == 0 ); | |
46 | VERIFY( ios.bad() ); | |
47 | ios.clear(); | |
48 | ||
49 | bool caught = false; | |
50 | ios.exceptions(std::ios::badbit); | |
51 | try { | |
52 | ios.iword(-1); | |
53 | } catch (const std::exception&) { | |
54 | caught = true; | |
55 | } | |
56 | VERIFY( caught ); | |
57 | } | |
58 | ||
59 | void | |
60 | test02() | |
61 | { | |
62 | std::ios ios(&sb); | |
63 | void*& p1 = ios.pword(-1); | |
64 | VERIFY( p1 == nullptr ); | |
65 | VERIFY( ios.bad() ); | |
66 | ios.clear(); | |
67 | p1 = &p1; | |
68 | VERIFY( ios.pword(-1) == nullptr ); | |
69 | VERIFY( ios.bad() ); | |
70 | ios.clear(); | |
71 | void*& p2 = ios.pword(INT_MIN); | |
72 | VERIFY( p2 == nullptr ); | |
73 | VERIFY( ios.bad() ); | |
74 | ios.clear(); | |
75 | p2 = &p2; | |
76 | VERIFY( ios.pword(INT_MIN) == nullptr ); | |
77 | VERIFY( ios.bad() ); | |
78 | ios.clear(); | |
79 | ||
80 | bool caught = false; | |
81 | ios.exceptions(std::ios::badbit); | |
82 | try { | |
83 | ios.pword(-1); | |
84 | } catch (const std::exception&) { | |
85 | caught = true; | |
86 | } | |
87 | VERIFY( caught ); | |
88 | } | |
89 | ||
90 | int | |
91 | main() | |
92 | { | |
93 | test01(); | |
94 | test02(); | |
95 | } |