Tobias Schwinger wrote:
...such as?
Besides satisfying my own curiosity, the wider scope of a library that qualifies for the name "Exception" would still be interesting in the context of this review.
Asynchronous exception handling: // rethrow/clone concepts class exception { virtual void rethrow() const = 0; virtual exception* clone() const = 0; }; template<typename T> class build_rethrowable_exception { void rethrow() const { throw T(*this); } exception* clone() const { return new T(*this); } }; // user defined exception class my_exception : public build_rethrowable_exception<my_exception> { }; // example of asynchronous exception handling class queue_item_visitor : public boost::static_visitor<> { void operator()(const exception& ex) { ex.rethrow(); } void operator()(const message& msg) { ... } }; typedef boost::shared_ptr<exception> exception_ptr; typedef boost::shared_ptr<message> message_ptr; typedef boost::variant<exception_ptr, message_ptr> queue_item; typedef boost::shared_ptr<queue_item> queue_item_ptr; TSQueue<queue_item_ptr> s_queue; thread1: // some thread responsible for reading messages { while (...) { try { s_queue.push_back(queue_item_ptr(new queue_item(read_message()))); } catch (const exception& ex) { s_queue.push_back(queue_item_ptr(new queue_item(exception_ptr(ex.clone())))); } } } thread2: // some thread responsible for processing messages { while (...) { queue_item_ptr item(s_queue.pop_front()); boost::apply_visitor(queue_item_visitor(), *item); } } _________________________________________________________________ Climb to the top of the charts! Play Star Shuffle: the word scramble challenge with star power. http://club.live.com/star_shuffle.aspx?icid=starshuffle_wlmailtextlink_oct