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// Copyright 2023 Peter Dimov.
// Distributed under the Boost Software License, Version 1.0.
// https://www.boost.org/LICENSE_1_0.txt
#include <boost/system/result.hpp>
#include <boost/core/lightweight_test.hpp>
using namespace boost::system;
// Eigen::Matrix4d has an explicit templated constructor
// https://github.com/boostorg/system/issues/103
// https://github.com/boostorg/json/issues/843
struct X
{
X() {}
template<class T> explicit X( T const& ) {}
};
int main()
{
{
auto ec = make_error_code( errc::invalid_argument );
result<X> r = ec;
BOOST_TEST( !r.has_value() );
BOOST_TEST( r.has_error() );
BOOST_TEST_EQ( r.error(), ec );
}
#if defined(BOOST_SYSTEM_HAS_SYSTEM_ERROR)
{
auto ec = make_error_code( std::errc::invalid_argument );
result<X> r = ec;
BOOST_TEST( !r.has_value() );
BOOST_TEST( r.has_error() );
BOOST_TEST_EQ( r.error(), ec );
}
#endif
return boost::report_errors();
}
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