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99dee823 | 1 | // Copyright (C) 2020-2021 Free Software Foundation, Inc. |
a1a0dc45 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 } } | |
b6a8e347 | 19 | // { dg-timeout-factor 2 } |
a1a0dc45 JW |
20 | |
21 | #include <regex> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | struct iterator | |
25 | { | |
26 | using value_type = char; | |
27 | using difference_type = std::ptrdiff_t; | |
28 | using reference = char&; | |
29 | using pointer = char*; | |
30 | using iterator_category = std::bidirectional_iterator_tag; | |
31 | ||
32 | iterator() : ptr() { } | |
33 | explicit iterator(pointer p) : ptr(p) { } | |
34 | ||
35 | iterator& operator++() { if (bang) throw 1; ++ptr; return *this; } | |
36 | iterator operator++(int) { auto copy = *this; ++*this; return copy; } | |
37 | iterator& operator--() { if (bang) throw 1; --ptr; return *this; } | |
38 | iterator operator--(int) { auto copy = *this; --*this; return copy; } | |
39 | ||
40 | reference operator*() const noexcept { return *ptr; } | |
41 | pointer operator->() const noexcept { return ptr; } | |
42 | ||
43 | bool operator==(iterator rhs) const noexcept { return ptr == rhs.ptr; } | |
44 | bool operator!=(iterator rhs) const noexcept { return ptr != rhs.ptr; } | |
45 | ||
46 | static bool bang; | |
47 | ||
48 | private: | |
49 | pointer ptr; | |
50 | }; | |
51 | ||
52 | bool iterator::bang = false; | |
53 | ||
54 | int main() | |
55 | { | |
56 | char str[] = "abc"; | |
57 | std::regex r(str); | |
58 | std::match_results<iterator> m; | |
59 | std::regex_match(iterator(str), iterator(str+3), m, r); | |
60 | iterator::bang = true; | |
61 | bool caught = false; | |
62 | try { | |
63 | (void) (m == m); | |
64 | } catch (int) { | |
65 | caught = true; | |
66 | } | |
67 | VERIFY( caught ); | |
68 | caught = false; | |
69 | ||
70 | try { | |
71 | (void) (m != m); | |
72 | } catch (int) { | |
73 | caught = true; | |
74 | } | |
75 | VERIFY( caught ); | |
76 | } |