forked from boostorg/optional
65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
// Copyright (C) 2014 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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#include "boost/config.hpp"
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#include "boost/core/lightweight_test.hpp"
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#if !defined(BOOST_NO_CXX11_HDR_UNORDERED_SET) && !defined(BOOST_OPTIONAL_CONFIG_DO_NOT_SPECIALIZE_STD_HASH)
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#include <unordered_set>
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void test_unordered_map()
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{
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std::unordered_set<boost::optional<int> > set;
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set.insert(boost::optional<int>(1));
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set.insert(boost::optional<int>(1));
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BOOST_TEST(set.size() == 1u);
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BOOST_TEST(set.find(boost::optional<int>(1)) != set.end());
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}
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#else
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void test_unordered_map()
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{}
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#endif
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#if !defined(BOOST_OPTIONAL_CONFIG_DO_NOT_SPECIALIZE_STD_HASH) && !defined(BOOST_NO_CXX11_HDR_FUNCTIONAL)
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void tets_hash()
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{
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std::hash<boost::optional<int> > hash_int;
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boost::optional<int> oN;
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boost::optional<int> o1(1);
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BOOST_TEST(hash_int(oN) == hash_int(oN));
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BOOST_TEST(hash_int(o1) == hash_int(o1));
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}
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#else
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void tets_hash()
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{}
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#endif
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int main()
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{
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test_unordered_map();
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tets_hash();
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return boost::report_errors();
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}
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