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// Copyright (C) 2019-2025 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();
}
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