AimRT/_deps/boost-src/libs/leaf/test/e_errno_test.cpp
2025-01-12 20:40:48 +08:00

47 lines
1.1 KiB
C++

// 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)
#ifdef BOOST_LEAF_TEST_SINGLE_HEADER
# include "leaf.hpp"
#else
# include <boost/leaf/common.hpp>
# include <boost/leaf/handle_errors.hpp>
# include <boost/leaf/result.hpp>
#endif
#include "lightweight_test.hpp"
#include <sstream>
namespace leaf = boost::leaf;
int main()
{
errno = ENOENT;
#if BOOST_LEAF_CFG_STD_STRING
std::stringstream ss;
ss << leaf::e_errno{};
BOOST_TEST(ss.str().find(std::strerror(ENOENT)) != std::string::npos);
#endif
int r = leaf::try_handle_all(
[]() -> leaf::result<int>
{
struct reset_errno { ~reset_errno() { errno=0; } } reset;
return leaf::new_error( leaf::e_errno{} );
},
[]( leaf::e_errno e )
{
BOOST_TEST_EQ(errno, 0);
BOOST_TEST_EQ(e.value, ENOENT);
return 1;
},
[]
{
return 2;
} );
BOOST_TEST_EQ(r, 1);
return boost::report_errors();
}