\ FIFO                                                               vandys
only extensions definitions

List -> subclass: FIFO

FIFO -> :method push ( elem fifo -- )   super-> add method;
FIFO -> :method pop { self -- elem }   0 self -> @ { elem }
   elem self -> remove   elem method;

                                                                     vandys


FIFO is a List where elements come and go in first-in-first-out order

:method push Add an element to the tail of the list
:method pop Remove an element from the head of the list... if needed
 for efficiency, we can easily avoid the overhead of List:remove