> A dynamic_cast<> should allow this. You'd need lots of them, in an > if/else-if block, for each sigc::signal<> type that you expect.
It turns out that the dynamic_cast fails because sigc::signal_base has no virtual functions (not even a virtual destructor). And, of course, at least one virtual function needs to be defined in a class to be able to use the dynamic_cast<> cast. The reason is probably to optimize for speed, but is it really that important and more important than being extensible and allow for type-safe downcasting? _______________________________________________ libsigc-list mailing list libsigc-list@gnome.org http://mail.gnome.org/mailman/listinfo/libsigc-list
