| // Copyright (C) 2018 Andrzej Krzemienski. |
| // |
| // Use, modification, and distribution is subject to the Boost Software |
| // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| // |
| // See http://www.boost.org/lib/optional for documentation. |
| // |
| // You are welcome to contact the author at: |
| // akrzemi1@gmail.com |
| |
| #include "boost/core/lightweight_test.hpp" |
| #include "boost/optional/optional.hpp" |
| |
| void test_assignment_to_empty() |
| { |
| // this test used to fail on GCC 8.1.0/8.2.0/9.0.0 with -std=c++98 |
| boost::optional<int> oa, ob(1); |
| BOOST_TEST(!oa); |
| BOOST_TEST(ob); |
| |
| oa = ob; |
| BOOST_TEST(oa); |
| } |
| |
| int main() |
| { |
| test_assignment_to_empty(); |
| return boost::report_errors(); |
| } |
