1
2// Copyright 2018 Peter Dimov.
3// Distributed under the Boost Software License, Version 1.0.
4
5#include <boost/system/error_code.hpp>
6#include <boost/core/lightweight_test.hpp>
7#include <cerrno>
8
9using namespace boost::system;
10
11static error_code e1( 1, system_category() );
12static std::string m1 = e1.message();
13
14static error_code e2( ENOENT, generic_category() );
15static std::string m2 = e2.message();
16
17int main()
18{
19 error_code e1_( 1, system_category() );
20
21 BOOST_TEST_EQ( e1, e1_ );
22 BOOST_TEST_EQ( m1, e1_.message() );
23
24 error_code e2_( ENOENT, generic_category() );
25
26 BOOST_TEST_EQ( e2, e2_ );
27 BOOST_TEST_EQ( m2, e2_.message() );
28
29 return boost::report_errors();
30}
31

source code of boost/libs/system/test/before_main_test.cpp