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// Copyright 2018-2024 Emil Dotchevski and Reverge Studios, Inc.
// 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)
#if __cplusplus < 201703L
#include <iostream>
int main()
{
std::cout << "Unit test not applicable." << std::endl;
return 0;
}
#else
#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
# include "leaf.hpp"
#else
# include <boost/leaf/to_variant.hpp>
#endif
#include "_test_ec.hpp"
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
enum class E1 { e11, e12, e13 };
enum class E2 { e21, e22, e23 };
enum class E3 { e31, e32, e33 };
int main()
{
#if !defined(__clang__) || __clang_major__ < 5 || __clang_major__ > 7 // See https://github.com/llvm/llvm-project/issues/32569
{
auto v = leaf::to_variant<E1, E2, E3>(
[]() -> leaf::result<int>
{
return 42;
} );
BOOST_TEST_EQ(v.index(), 0);
BOOST_TEST_EQ(std::get<0>(v), 42);
}
{
auto v = leaf::to_variant<E1, E2, E3>(
[]() -> leaf::result<int>
{
return leaf::new_error(E1::e12, E3::e31);
} );
BOOST_TEST(v.index() == 1);
auto t = std::get<1>(v);
BOOST_TEST(std::get<0>(t).has_value());
BOOST_TEST(!std::get<1>(t).has_value());
BOOST_TEST(std::get<2>(t).has_value());
BOOST_TEST(std::get<0>(t).value() == E1::e12);
BOOST_TEST(std::get<2>(t).value() == E3::e31);
}
#endif
return boost::report_errors();
}
#endif
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