update ceph source to reef 18.1.2

[ceph.git] / ceph / src / boost / libs / leaf / test / preload_nested_success_exception_test.cpp

// Copyright 2018-2022 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>

#ifdef BOOST_LEAF_NO_EXCEPTIONS

#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/on_error.hpp>
#   include <boost/leaf/handle_errors.hpp>
#endif

#include "lightweight_test.hpp"

namespace leaf = boost::leaf;

struct info { int value; };

void g1()
{
    auto load = leaf::on_error( info{1} );
}

void g2()
{
    throw std::exception();
}

void f()
{
    auto load = leaf::on_error( info{2} );
    g1();
    g2();
}

int main()
{
    int r = leaf::try_catch(
        []
        {
            f();
            return 0;
        },
        []( info x )
        {
            BOOST_TEST_EQ(x.value, 2);
            return 1;
        },
        []
        {
            return 2;
         } );
    BOOST_TEST_EQ(r, 1);

    return boost::report_errors();
}

#endif