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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)
#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
# include "leaf.hpp"
#else
# include <boost/leaf/on_error.hpp>
# include <boost/leaf/handle_errors.hpp>
# include <boost/leaf/result.hpp>
#endif
#include "lightweight_test.hpp"
namespace leaf = boost::leaf;
struct info { int value; };
leaf::result<void> g1()
{
auto load = leaf::on_error( [] { return info{1}; } );
return { };
}
leaf::result<void> g2()
{
return leaf::new_error();
}
leaf::result<void> f()
{
auto load = leaf::on_error( [] { return info{2}; } );
BOOST_LEAF_CHECK(g1());
return g2();
}
int main()
{
int r = leaf::try_handle_all(
[]() -> leaf::result<int>
{
BOOST_LEAF_CHECK(f());
return 1;
},
[]( info x )
{
BOOST_TEST_EQ(x.value, 2);
return 2;
},
[]
{
return 3;
} );
BOOST_TEST_EQ(r, 2);
return boost::report_errors();
}
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