| // 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 BOOST_BORLANDC |
| #pragma hdrstop |
| #endif |
| |
| #include <string> |
| #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(); |
| } |