RosettaCodeData/Task/Queue-Definition/Ada/queue-definition-5.ada

26 lines
516 B
Ada

package body Generic_Fifo is
----------
-- Push --
----------
procedure Push (The_Fifo : in out Fifo_Type; Item : in Element_Type) is
begin
The_Fifo.Prepend(Item);
end Push;
---------
-- Pop --
---------
procedure Pop (The_Fifo : in out Fifo_Type; Item : out Element_Type) is
begin
if Is_Empty(The_Fifo) then
raise Empty_Error;
end if;
Item := The_Fifo.Last_Element;
The_Fifo.Delete_Last;
end Pop;
end Generic_Fifo;