Give a snippet, define uninformative, and please read the contribution file on how to file a bug ticket.

If you prefer to use Boost Trac why you haven't disabled Issues tab on GitHub?

using error_code = boost::error_info<struct tag_error_code, uint32_t>;
struct myexception : std::exception, virtual boost::exception {};

BOOST_AUTO_TEST_CASE(is_always_lock_free) {
  BOOST_THROW_EXCEPTION(myexception << error_code(123));
}

At the moment the exception will be catch as std::exception:

test.cpp(66): fatal error: in "void __cdecl `anonymous-namespace'::is_always_lock_free::test_method(void)": class boost::exception_detail::clone_impl<struct myexception>: Unknown exception

Well.. I swapped the boost::exception && std::exception and the only difference was in showing "Unknown exception" message. Sorry, thought it will use boost::diagnostic_information() instead of unknown-exception phrase.

But isn't it right to catch more narrowed (non generic) exceptions first?

What happens if you derive only from boost::exception? and recently Trac has been closed to new tickets.

@k15tfu Would you please test the branch topic/GH-147-boost-exception-before-std-exception?

In next

In develop, closing.

Tested, thanks!