CallBack routines

CallBack routines

[Art Schwarz]

In Ada 83: I'm trying to fake (?), implement (?) the use
           of callback functions - unsuccessfully. The 
           best seen here is a generic which allows the
           use of generic procedures. The generic procedures
           (within the generic template) is used as a 
           'callback'. Anything better around?

    For example what I'd like (a la C/C++):

           qsort(list, callbackfn) where the callbackfn 
                                   returns the result of
                                   comparing two elements
                                   from the list.
                                   
(Since this is an example, I've taken some liberties).

art