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- // Copyright (C) 2014 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/optional/optional.hpp"
- #ifdef __BORLANDC__
- #pragma hdrstop
- #endif
- #include "boost/core/lightweight_test.hpp"
- #include "boost/none.hpp"
- struct SemiRegular // no operator==
- {
- private: void operator==(SemiRegular const&) const {}
- private: void operator!=(SemiRegular const&) const {}
- };
- void test_equal_to_none_of_noncomparable_T()
- {
- boost::optional<SemiRegular> i = SemiRegular();
- boost::optional<SemiRegular> o;
-
- BOOST_TEST(i != boost::none);
- BOOST_TEST(boost::none != i);
- BOOST_TEST(o == boost::none);
- BOOST_TEST(boost::none == o);
- }
- int main()
- {
- test_equal_to_none_of_noncomparable_T();
- return boost::report_errors();
- }
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