Hello, I am contemplating a few minor changes to the exception library and I wanted to get some input before I implement them. First, I think that the function template failed should be renamed. Somehow, boost::failed doesn't feel right. Since English is not native to me, I really need help with this one. Second, I'm thinking of renaming wrap_string/get_string. Those names did make sense in the implementation I've been using in my own code, because the whole thing was in namespace except. Clearly, boost::get_string doesn't suggest that it's part of the exception library. I'm thinking of renaming them both to exception_string. So, stuffing a string at the time of the throw would look like this: throw failed<foo>() << exception_string<tag>("value"); To extract the string from an exception_info object, you'd do this: exception_info & xi; if( std::string const * s = exception_string<tag>(xi) ) .... Similarly, it makes sense to rename both wrap_errno/get_errno to exception_errno. Thanks for everyone's input! --Emil