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- // Copyright (C) 2014-2015 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"
- class NonConstructible
- {
- private:
- NonConstructible();
- NonConstructible(NonConstructible const&);
- #if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES)
- NonConstructible(NonConstructible &&);
- #endif
- };
- void test_non_constructible()
- {
- boost::optional<NonConstructible> o;
- BOOST_TEST(!o);
- BOOST_TEST(o == boost::none);
- BOOST_TEST_THROWS(o.value(), boost::bad_optional_access);
- }
- class Guard
- {
- public:
- explicit Guard(int) {}
- private:
- Guard();
- Guard(Guard const&);
- #if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES)
- Guard(Guard &&);
- #endif
- };
- void test_guard()
- {
- boost::optional<Guard> o;
- o.emplace(1);
- BOOST_TEST(o);
- BOOST_TEST(o != boost::none);
- }
- void test_non_assignable()
- {
- boost::optional<const std::string> o;
- o.emplace("cat");
- BOOST_TEST(o);
- BOOST_TEST(o != boost::none);
- BOOST_TEST_EQ(*o, std::string("cat"));
- }
- int main()
- {
- test_non_constructible();
- test_guard();
- test_non_assignable();
- return boost::report_errors();
- }
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