RosettaCodeData/Task/Queue-Definition/Ada/queue-definition-4.ada

14 lines
496 B
Ada

with Ada.Containers.Doubly_Linked_Lists;
generic
type Element_Type is private;
package Generic_Fifo is
type Fifo_Type is tagged private;
procedure Push(The_Fifo : in out Fifo_Type; Item : in Element_Type);
procedure Pop(The_Fifo : in out Fifo_Type; Item : out Element_Type);
Empty_Error : Exception;
private
package List_Pkg is new Ada.Containers.Doubly_Linked_Lists(Element_Type);
use List_Pkg;
Type Fifo_Type is new List with null record;
end Generic_Fifo;