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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/addressof.hpp"
#include "boost/core/enable_if.hpp"
#include "boost/core/lightweight_test.hpp"
#include "testable_classes.hpp"
using boost::optional;
using boost::none;
template <typename T>
void test_converting_ctor()
{
typename concrete_type_of<T>::type v1(1), v2(2);
{
optional<T&> o1 = v1, o1_ = v1, o2 = v2;
BOOST_TEST(o1);
BOOST_TEST(boost::addressof(*o1) == boost::addressof(v1));
BOOST_TEST(o1_);
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(v1));
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(*o1));
BOOST_TEST(o2);
BOOST_TEST(boost::addressof(*o2) == boost::addressof(v2));
BOOST_TEST(boost::addressof(*o2) != boost::addressof(*o1));
}
{
const optional<T&> o1 = v1, o1_ = v1, o2 = v2;
BOOST_TEST(o1);
BOOST_TEST(boost::addressof(*o1) == boost::addressof(v1));
BOOST_TEST(o1_);
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(v1));
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(*o1));
BOOST_TEST(o2);
BOOST_TEST(boost::addressof(*o2) == boost::addressof(v2));
BOOST_TEST(boost::addressof(*o2) != boost::addressof(*o1));
}
}
template <typename T>
void test_converting_ctor_for_noconst_const()
{
typename concrete_type_of<T>::type v1(1), v2(2);
{
optional<const T&> o1 = v1, o1_ = v1, o2 = v2;
BOOST_TEST(o1);
BOOST_TEST(boost::addressof(*o1) == boost::addressof(v1));
BOOST_TEST(o1_);
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(v1));
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(*o1));
BOOST_TEST(o2);
BOOST_TEST(boost::addressof(*o2) == boost::addressof(v2));
BOOST_TEST(boost::addressof(*o2) != boost::addressof(*o1));
}
{
const optional<const T&> o1 = v1, o1_ = v1, o2 = v2;
BOOST_TEST(o1);
BOOST_TEST(boost::addressof(*o1) == boost::addressof(v1));
BOOST_TEST(o1_);
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(v1));
BOOST_TEST(boost::addressof(*o1_) == boost::addressof(*o1));
BOOST_TEST(o2);
BOOST_TEST(boost::addressof(*o2) == boost::addressof(v2));
BOOST_TEST(boost::addressof(*o2) != boost::addressof(*o1));
}
}
template <typename T>
void test_all_const_cases()
{
test_converting_ctor<T>();
#ifndef BOOST_OPTIONAL_CONFIG_NO_PROPER_CONVERT_FROM_CONST_INT
test_converting_ctor<const T>();
#endif
test_converting_ctor_for_noconst_const<T>();
}
int main()
{
test_all_const_cases<int>();
test_all_const_cases<ScopeGuard>();
test_all_const_cases<Abstract>();
test_all_const_cases< optional<int> >();
return boost::report_errors();
}
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