boost_exception/test/unknown_exception_test.cpp

//Copyright (c) 2006-2008 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/exception/cloning.hpp>
#include <boost/exception/info.hpp>
#include <boost/detail/lightweight_test.hpp>

typedef boost::error_info<struct tag_test,int> test;

struct
test_boost_exception:
	boost::exception
	{
	};

void
throw_boost_exception()
	{
	throw test_boost_exception() << test(42);
	}

void
throw_unknown_exception()
	{
	struct
	test_exception:
		std::exception
		{
		};
	throw test_exception();
	}

int
main()
	{
	try
		{
		throw_boost_exception();
		}
	catch(
	boost::exception & x )
		{
		boost::exception_ptr ep=boost::clone_exception(x);
		try
			{
			rethrow_exception(ep);
			}
		catch(
		boost::unknown_exception & x )
			{
			BOOST_TEST( 42==*boost::get_error_info<test>(x) );
			}
		catch(
		... )
			{
			BOOST_TEST(false);
			}
		}
	try
		{
		throw_unknown_exception();
		}
	catch(
	std::exception & x )
		{
		boost::exception_ptr ep=boost::clone_exception(x);
		try
			{
			rethrow_exception(ep);
			}
		catch(
		boost::unknown_exception & )
			{
			}
		catch(
		... )
			{
			BOOST_TEST(false);
			}
		}
	return boost::report_errors();
	}