[boost] boost::exception questions

From: Tom Brinkman (reportbase_at_[hidden])
Date: 2007-09-30 02:48:01

1) Why cant I just throw an boost::exception object?

        throw boost::exception() << boost::error_info<tag_errno>(100) <<
                                boost::error_info<tag_file_name>("hello");

2) It might be nice to support "std::cerr << e", instead
of requiring the use of e.what().

       std::cerr << e;

3) Support for linking multiple error tags in a single expression
might be useful and help in standarizing errors throughout an application.

     throw boost:::exception() <<
           boost::error_info<tag_errorno,tag_filename,tag_size,tag_width>(
                (1,"output.txt",100,200);