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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)
#include <boost/leaf/config.hpp>
#if !BOOST_LEAF_CFG_CAPTURE
#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/result.hpp>
# include <boost/leaf/handle_errors.hpp>
#endif
#if BOOST_LEAF_CFG_STD_STRING
# include <sstream>
# include <iostream>
#endif
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
int count = 0;
template <int N>
struct info
{
info() noexcept
{
++count;
}
info( info const & ) noexcept
{
++count;
}
~info() noexcept
{
--count;
}
template <class CharT, class Traits>
friend std::ostream & operator<<( std::basic_ostream<CharT, Traits> & os, info const & )
{
return os << "info<" << N << "> instance";
}
};
int main()
{
{
leaf::result<int> r = leaf::try_capture_all(
[]() -> leaf::result<int>
{
return leaf::new_error( info<1>{}, info<3>{} );
} );
BOOST_TEST_EQ(count, 2);
#if BOOST_LEAF_CFG_STD_STRING
{
std::ostringstream st;
st << r;
std::string s = st.str();
std::cout << s << std::endl;
if( BOOST_LEAF_CFG_DIAGNOSTICS )
{
BOOST_TEST_NE(s.find("info<1> instance"), s.npos);
BOOST_TEST_NE(s.find("info<3> instance"), s.npos);
}
}
#endif
int ret = leaf::try_handle_all(
[&]
{
return std::move(r);
},
[]( info<1>, info<3> )
{
return 42;
},
[]
{
return -42;
} );
BOOST_TEST_EQ(ret, 42);
}
BOOST_TEST_EQ(count, 0);
return boost::report_errors();
}
#endif
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