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76 lines
1.5 KiB
C++
76 lines
1.5 KiB
C++
// Copyright (C) 2014-2015 Andrzej Krzemienski.
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//
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// Use, modification, and distribution is subject to the Boost Software
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// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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// See http://www.boost.org/lib/optional for documentation.
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//
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// You are welcome to contact the author at:
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// akrzemi1@gmail.com
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#include "boost/optional/optional.hpp"
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#ifdef BOOST_BORLANDC
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#pragma hdrstop
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#endif
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#include <string>
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#include "boost/core/lightweight_test.hpp"
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#include "boost/none.hpp"
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class NonConstructible
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{
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private:
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NonConstructible();
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NonConstructible(NonConstructible const&);
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#if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES)
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NonConstructible(NonConstructible &&);
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#endif
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};
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void test_non_constructible()
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{
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boost::optional<NonConstructible> o;
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BOOST_TEST(!o);
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BOOST_TEST(o == boost::none);
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BOOST_TEST_THROWS(o.value(), boost::bad_optional_access);
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}
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class Guard
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{
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public:
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explicit Guard(int) {}
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private:
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Guard();
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Guard(Guard const&);
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#if (!defined BOOST_NO_CXX11_RVALUE_REFERENCES)
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Guard(Guard &&);
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#endif
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};
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void test_guard()
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{
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boost::optional<Guard> o;
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o.emplace(1);
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BOOST_TEST(o);
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BOOST_TEST(o != boost::none);
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}
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void test_non_assignable()
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{
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boost::optional<const std::string> o;
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o.emplace("cat");
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BOOST_TEST(o);
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BOOST_TEST(o != boost::none);
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BOOST_TEST_EQ(*o, std::string("cat"));
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}
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int main()
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{
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test_non_constructible();
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test_guard();
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test_non_assignable();
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return boost::report_errors();
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} |