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// Copyright 2018 Daniel James
// Distributed under 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)
#include "./config.hpp"
#ifndef BOOST_HASH_TEST_STD_INCLUDES
# include <boost/container_hash/hash.hpp>
#endif
#include <boost/config.hpp>
#include <boost/core/lightweight_test.hpp>
#if !defined(BOOST_NO_CXX17_HDR_OPTIONAL)
#include <optional>
#include <string>
void test_optional_int()
{
std::optional<int> x1a;
std::optional<int> x1b;
std::optional<int> x2a(10);
std::optional<int> x2b(x2a);
std::optional<int> x3(20);
boost::hash<std::optional<int> > hasher;
BOOST_TEST(hasher(x1a) == hasher(x1a));
BOOST_TEST(hasher(x1a) == hasher(x1b));
BOOST_TEST(hasher(x1a) != hasher(x2a));
BOOST_TEST(hasher(x1a) != hasher(x3));
BOOST_TEST(hasher(x2a) == hasher(x2a));
BOOST_TEST(hasher(x2b) == hasher(x2b));
BOOST_TEST(hasher(x2a) != hasher(x3));
BOOST_TEST(hasher(x3) == hasher(x3));
}
void test_optional_string()
{
std::optional<std::string> x1a;
std::optional<std::string> x1b;
std::optional<std::string> x2a("10");
std::optional<std::string> x2b(x2a);
std::optional<std::string> x3("20");
boost::hash<std::optional<std::string> > hasher;
BOOST_TEST(hasher(x1a) == hasher(x1a));
BOOST_TEST(hasher(x1a) == hasher(x1b));
BOOST_TEST(hasher(x1a) != hasher(x2a));
BOOST_TEST(hasher(x1a) != hasher(x3));
BOOST_TEST(hasher(x2a) == hasher(x2a));
BOOST_TEST(hasher(x2b) == hasher(x2b));
BOOST_TEST(hasher(x2a) != hasher(x3));
BOOST_TEST(hasher(x3) == hasher(x3));
}
#endif
int main()
{
#if !defined(BOOST_NO_CXX17_HDR_OPTIONAL)
test_optional_int();
test_optional_string();
#else
BOOST_LIGHTWEIGHT_TEST_OSTREAM << "<optional> not available." << std::endl;
#endif
return boost::report_errors();
}
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