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a5544970 | 1 | // Copyright (C) 2015-2019 Free Software Foundation, Inc. |
03a16cc4 VV |
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 | ||
7b936140 | 18 | // { dg-options "-std=gnu++17" } |
03a16cc4 VV |
19 | |
20 | #include <cassert> | |
21 | #include <exception> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
196e0493 JW |
24 | #ifndef __cpp_lib_uncaught_exceptions |
25 | # error "Feature-test macro for uncaught_exceptions missing" | |
26 | #elif __cpp_lib_uncaught_exceptions != 201411 | |
27 | # error "Feature-test macro for uncaught_exceptions has wrong value" | |
28 | #endif | |
29 | ||
03a16cc4 VV |
30 | struct UncaughtVerifier |
31 | { | |
32 | int expected_count_ = 0; | |
33 | UncaughtVerifier(int expected_count) : expected_count_(expected_count) {} | |
34 | ~UncaughtVerifier() | |
35 | { | |
36 | VERIFY(std::uncaught_exceptions() == expected_count_); | |
37 | } | |
38 | }; | |
39 | ||
40 | struct Transaction | |
41 | { | |
42 | int initial_count_; | |
43 | bool& result_; | |
44 | Transaction(bool& result) | |
45 | : initial_count_(std::uncaught_exceptions()), | |
46 | result_(result) {} | |
47 | ~Transaction() | |
48 | { | |
49 | if (std::uncaught_exceptions() != initial_count_) { | |
50 | result_ = false; | |
51 | } | |
52 | } | |
53 | }; | |
54 | ||
55 | void test01() | |
56 | { | |
57 | try { | |
58 | UncaughtVerifier uv{0}; | |
59 | } catch (...) { | |
60 | UncaughtVerifier uv{0}; | |
61 | } | |
62 | } | |
63 | ||
64 | void test02() | |
65 | { | |
66 | try { | |
67 | UncaughtVerifier uv{1}; | |
68 | throw 0; | |
69 | } catch (...) { | |
70 | UncaughtVerifier uv{0}; | |
71 | } | |
72 | } | |
73 | ||
74 | void test03() | |
75 | { | |
76 | try { | |
77 | struct Wrap | |
78 | { | |
79 | UncaughtVerifier uv_{1}; | |
80 | ~Wrap() {try {UncaughtVerifier uv2{2}; throw 0;} catch(...) {}} | |
81 | }; | |
82 | Wrap w; | |
83 | throw 0; | |
84 | } catch (...) { | |
85 | UncaughtVerifier uv{0}; | |
86 | } | |
87 | } | |
88 | ||
89 | void test04() | |
90 | { | |
91 | bool result = true; | |
92 | try { | |
93 | Transaction t{result}; | |
94 | } catch(...) { | |
95 | } | |
96 | VERIFY(result); | |
97 | } | |
98 | ||
99 | void test05() | |
100 | { | |
101 | bool result = true; | |
102 | try { | |
103 | Transaction t{result}; | |
104 | throw 0; | |
105 | } catch(...) { | |
106 | } | |
107 | VERIFY(!result); | |
108 | } | |
109 | ||
110 | void test06() | |
111 | { | |
112 | bool result = true; | |
113 | bool result2 = true; | |
114 | try { | |
115 | struct Wrap | |
116 | { | |
117 | bool& result_; | |
118 | Wrap(bool& result) : result_(result) {} | |
119 | ~Wrap() | |
120 | { | |
121 | Transaction t{result_}; | |
122 | } | |
123 | }; | |
124 | Transaction t{result}; | |
125 | Wrap w{result2}; | |
126 | throw 0; | |
127 | } catch(...) { | |
128 | } | |
129 | VERIFY(!result); | |
130 | VERIFY(result2); | |
131 | } | |
132 | ||
133 | void test07() | |
134 | { | |
135 | bool result = true; | |
136 | bool result2 = true; | |
137 | try { | |
138 | struct Wrap | |
139 | { | |
140 | bool& result_; | |
141 | Wrap(bool& result) : result_(result) {} | |
142 | ~Wrap() | |
143 | { | |
144 | try { | |
145 | Transaction t{result_}; | |
146 | throw 0; | |
147 | } catch(...) {} | |
148 | } | |
149 | }; | |
150 | Transaction t{result}; | |
151 | Wrap w{result2}; | |
152 | throw 0; | |
153 | } catch(...) { | |
154 | } | |
155 | VERIFY(!result); | |
156 | VERIFY(!result2); | |
157 | } | |
158 | ||
159 | int main() | |
160 | { | |
161 | test01(); | |
162 | test02(); | |
163 | test03(); | |
164 | test04(); | |
165 | test05(); | |
166 | test06(); | |
167 | test07(); | |
168 | } |