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1 | // Copyright (C) 2019-2020 Free Software Foundation, Inc. | |
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-options "-std=gnu++17" } | |
19 | // { dg-do run { target c++17 } } | |
20 | ||
21 | #include <variant> | |
22 | #include <testsuite_hooks.h> | |
23 | ||
24 | void | |
25 | test01() | |
26 | { | |
27 | struct ThrowingConversion { | |
28 | operator int() { throw 0; } | |
29 | }; | |
30 | ||
31 | std::variant<float, char, int> v{'a'}; | |
32 | try | |
33 | { | |
34 | ThrowingConversion x; | |
35 | v.emplace<2>(x); | |
36 | VERIFY(false); | |
37 | } | |
38 | catch (int) | |
39 | { | |
40 | VERIFY( !v.valueless_by_exception() ); | |
41 | VERIFY( v.index() == 1 ); | |
42 | VERIFY( std::get<1>(v) == 'a' ); | |
43 | } | |
44 | } | |
45 | ||
46 | void | |
47 | test02() | |
48 | { | |
49 | struct ThrowingConstructor { | |
50 | ThrowingConstructor(std::initializer_list<int>, char) { throw 1; } | |
51 | }; | |
52 | ||
53 | std::variant<float, char, ThrowingConstructor> v{'a'}; | |
54 | try | |
55 | { | |
56 | v.emplace<2>({1, 2, 3}, '4'); | |
57 | VERIFY(false); | |
58 | } | |
59 | catch (int) | |
60 | { | |
61 | VERIFY( !v.valueless_by_exception() ); | |
62 | VERIFY( v.index() == 1 ); | |
63 | VERIFY( std::get<1>(v) == 'a' ); | |
64 | } | |
65 | } | |
66 | ||
67 | int | |
68 | main() | |
69 | { | |
70 | test01(); | |
71 | test02(); | |
72 | } |