🚀 go-pugleaf

pauld@verdix.com (Paul Durbin) writes:

>I attempt to use a member function as callback but all three arguments (to the
>callback) are garbage. If I make it a friend then the arguments are correct,
>but then I can't get to the class data, without reference thru an instance of
>the class and I don't want the data to be static.

>So, what is causing this problem? Could I possibly use the *this pointer as
>the client_data to the callback, then cast to the appropriate class?

All non-static member functions have an invisible 'this' pointer as
their first parameter. That's what's causing your problems.

Declare a static member function and use that as the callback function.
Passing the this pointer and casting it to the appropriate class works
fine.
--
Eric Gunnerson
gunnerso@halcyon.com