boost/libs/pfr/test/run/get_const_field.cpp
2021-10-05 21:37:46 +02:00

56 lines
1.3 KiB
C++

// Copyright (c) 2020-2021 Antony Polukhin
//
// 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 <boost/pfr/core.hpp>
#include <boost/type_index.hpp>
#include <boost/core/lightweight_test.hpp>
namespace testing {
namespace {
struct other_anon {
int data;
};
struct anon {
other_anon a;
const other_anon b;
};
void test_get_in_anon_ns_const_field() {
anon x{{1}, {2}};
BOOST_TEST_EQ(boost::pfr::get<0>(x).data, 1);
auto x0_type = boost::typeindex::type_id_with_cvr<decltype(
boost::pfr::get<0>(x)
)>();
// Use runtime check to make sure that Loophole fails to compile structure_tie
BOOST_TEST_EQ(x0_type, boost::typeindex::type_id_with_cvr<other_anon&>());
BOOST_TEST_EQ(boost::pfr::get<1>(x).data, 2);
auto x1_type = boost::typeindex::type_id_with_cvr<decltype(
boost::pfr::get<1>(x)
)>();
// Use runtime check to make sure that Loophole fails to compile structure_tie
BOOST_TEST_EQ(x1_type, boost::typeindex::type_id_with_cvr<const other_anon&>());
}
} // anonymous namespace
} // namespace testing
int main() {
testing::test_get_in_anon_ns_const_field();
return boost::report_errors();
}