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// Copyright 2018, 2020 Peter Dimov.
//
// 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
// See library home page at http://www.boost.org/libs/system
#include <boost/system/error_category.hpp>
#include <boost/core/lightweight_test.hpp>
#include <boost/core/snprintf.hpp>
#include <cstdio>
//
namespace sys = boost::system;
class user_category: public sys::error_category
{
public:
virtual const char * name() const noexcept
{
return "user";
}
virtual std::string message( int ev ) const
{
char buffer[ 256 ];
boost::core::snprintf( buffer, sizeof( buffer ), "user message %d", ev );
return buffer;
}
using sys::error_category::message;
};
static user_category s_cat_1;
static user_category s_cat_2;
int main()
{
// default_error_condition
BOOST_TEST( s_cat_1.default_error_condition( 1 ).value() == 1 );
BOOST_TEST( s_cat_1.default_error_condition( 1 ).category() == s_cat_1 );
BOOST_TEST( s_cat_2.default_error_condition( 2 ).value() == 2 );
BOOST_TEST( s_cat_2.default_error_condition( 2 ).category() == s_cat_2 );
// equivalent
BOOST_TEST( s_cat_1.equivalent( 1, s_cat_1.default_error_condition( 1 ) ) );
BOOST_TEST( !s_cat_1.equivalent( 1, s_cat_1.default_error_condition( 2 ) ) );
BOOST_TEST( !s_cat_1.equivalent( 1, s_cat_2.default_error_condition( 2 ) ) );
// message
{
char buffer[ 256 ];
BOOST_TEST_CSTR_EQ( s_cat_1.message( 1, buffer, sizeof( buffer ) ), s_cat_1.message( 1 ).c_str() );
}
{
char buffer[ 4 ];
BOOST_TEST_CSTR_EQ( s_cat_1.message( 1, buffer, sizeof( buffer ) ), "use" );
}
// ==
BOOST_TEST_NOT( s_cat_1 == s_cat_2 );
BOOST_TEST( s_cat_1 != s_cat_2 );
return boost::report_errors();
}
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