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DEF
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QUICKSOR.DEF
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1996-09-27
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DEFINITION MODULE QuickSortModule;
(********************************************************)
(* *)
(* In-memory sort using the QuickSort method *)
(* *)
(* Programmer: P. Moylan *)
(* Last edited: 27 September 1996 *)
(* Status: OK *)
(* *)
(********************************************************)
FROM SYSTEM IMPORT
(* type *) LOC, ADDRESS;
TYPE CompareProc = PROCEDURE (ADDRESS, ADDRESS): BOOLEAN;
(* A "CompareProc" procedure accepts the addresses of two data *)
(* elements, and returns TRUE iff the first is greater than or *)
(* equal to the second. It is at the caller's discretion to define *)
(* the meaning of "greater or equal" for his or her application. *)
PROCEDURE QuickSort (VAR (*INOUT*) data: ARRAY OF LOC;
N, EltSize: CARDINAL; GE: CompareProc);
(* In-place sort of array data[0..N]. EltSize is the element size, *)
(* and GE is a user-supplied function to compare elements at two *)
(* specified addresses. *)
END QuickSortModule.