| // Copyright (C) 2019-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library is free |
| // software; you can redistribute it and/or modify it under the |
| // terms of the GNU General Public License as published by the |
| // Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| |
| // This library is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| |
| // You should have received a copy of the GNU General Public License along |
| // with this library; see the file COPYING3. If not see |
| // <http://www.gnu.org/licenses/>. |
| |
| // { dg-do run { target c++17 } } |
| |
| #include <variant> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| struct ThrowingConversion { |
| operator int() { throw 0; } |
| }; |
| |
| std::variant<float, char, int> v{'a'}; |
| try |
| { |
| ThrowingConversion x; |
| v.emplace<2>(x); |
| VERIFY(false); |
| } |
| catch (int) |
| { |
| VERIFY( !v.valueless_by_exception() ); |
| VERIFY( v.index() == 1 ); |
| VERIFY( std::get<1>(v) == 'a' ); |
| } |
| } |
| |
| void |
| test02() |
| { |
| struct ThrowingConstructor { |
| ThrowingConstructor(std::initializer_list<int>, char) { throw 1; } |
| }; |
| |
| std::variant<float, char, ThrowingConstructor> v{'a'}; |
| try |
| { |
| v.emplace<2>({1, 2, 3}, '4'); |
| VERIFY(false); |
| } |
| catch (int) |
| { |
| VERIFY( !v.valueless_by_exception() ); |
| VERIFY( v.index() == 1 ); |
| VERIFY( std::get<1>(v) == 'a' ); |
| } |
| } |
| |
| int |
| main() |
| { |
| test01(); |
| test02(); |
| } |