C0QSET	;GPL - SET OPERATIONS ON LISTS ;818/11 8:50pm
	;;1.0;MU PACKAGE;;;Build 19
	;
	;2011 George Lilly glilly@glilly.net - Licensed under the terms of the GNU
	;General Public License See attached copy of the License.
	;
	;This program is free software; you can redistribute it and/or modify
	;it under the terms of the GNU General Public License as published by
	;the Free Software Foundation; either version 2 of the License, or
	;(at your option) any later version.
	;
	;This program is distributed in the hope that it will be useful,
	;but WITHOUT ANY WARRANTY; without even the implied warranty of
	;MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
	;GNU General Public License for more details.
	;
	;You should have received a copy of the GNU General Public License along
	;with this program; if not, write to the Free Software Foundation, Inc.,
	;51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
	;
	Q
	;
TEST	; TEST OF UNITY ROUTINE
	;
	S A(1)=""
	S A(2)=""
	S A(3)=""
	S B(3)=""
	S B(4)=""
	D UNITY("C","A","B")
	ZWR C
	Q
	;
TEST2	; WHICH PATIENTS HAVE MEDICATIONS? WHICH DON'T? 
	; WHAT BAD PATIENT POINTERS ARE IN THE MEDICATIONS FILE?
	S PATS=$NA(^DPT)
	S MEDS=$NA(^PS(55))
	D UNITY("DELTA",PATS,MEDS)
	W !,"PATIENTS WITH NO MEDS",!
	ZWR DELTA(0,*)
	W !,"BAD POINTERS IN THE MEDS FILE",!
	ZWR DELTA(2,*)
	Q
	;
UNITY(ZRTN,ZNEW,ZOLD)	; RETURNS THE DELTA BETWEEN THE NEW AND OLD LISTS
	; ONLY NUMERIC LISTS SUPPORTED. FOR LIST WITH STRINGS SEE UNITYS
	; ZRTN,ZNEW AND ZOLD ARE ALL PASSED BY NAME
	; FORMAT OF RETURN ARRAY:
	; @ZRTN@(0,X)="" ; X IS MISSING FROM OLD
	; @ZRTN@(1,Y)="" ; Y IS IN BOTH NEW AND OLD - NOT MISSING
	; @ZRTN@(2,Z)="" ; Z IS EXTRA IN OLD - WOULD BEED TO BE DELETED FOR UNITY
	N C0QD ; TEMP WORK ARRAY
	N ZN S ZN=0 ; COUNT
	N ZI S ZI=0
	F  S ZI=$O(@ZNEW@(ZI)) Q:+ZI=0  D  ; FOR EACH ITEM IN NEW
	. S C0QD(ZI)=0 ; SET THEM ALL AS 0 MEANING NEW
	. S ZN=ZN+1
	S @ZRTN@("COUNT")=ZN ; NEW FILE COUNT
	S ZI=0
	F  S ZI=$O(@ZOLD@(ZI)) Q:+ZI=0  D  ; FOR EACH ITEM IN OLD
	. I $D(C0QD(ZI)) S C0QD(ZI)=1 ; NOT NEW - PRESENT IN NEW AND OLD
	. E  S C0QD(ZI)=2 ; EXTRA IN OLD - WOULD NEED TO BE DELETED
	S ZI=0
	F  S ZI=$O(C0QD(ZI)) Q:+ZI=0  D  ; FOR EACH ITEM
	. S @ZRTN@(C0QD(ZI),ZI)="" ; SET RESULTS IN RETURN ARRAY
	Q
	;
UNITYS(ZRTN,ZNEW,ZOLD)	; RETURNS THE DELTA BETWEEN THE NEW AND OLD LISTS
	; THIS VERSION HAS SUPPORT FOR NUMBERS AND STRINGS IN A LIST
	; ZRTN,ZNEW AND ZOLD ARE ALL PASSED BY NAME
	; FORMAT OF RETURN ARRAY:
	; @ZRTN@(0,X)="" ; X IS MISSING FROM OLD
	; @ZRTN@(1,Y)="" ; Y IS IN BOTH NEW AND OLD - NOT MISSING
	; @ZRTN@(2,Z)="" ; Z IS EXTRA IN OLD - WOULD BEED TO BE DELETED FOR UNITY
	N C0QD ; TEMP WORK ARRAY
	N ZI S ZI=""
	F  S ZI=$O(@ZNEW@(ZI)) Q:ZI=""  D  ; FOR EACH ITEM IN NEW
	. S C0QD(ZI)=0 ; SET THEM ALL AS 0 MEANING NEW
	S ZI=""
	F  S ZI=$O(@ZOLD@(ZI)) Q:ZI=""  D  ; FOR EACH ITEM IN OLD
	. I $D(C0QD(ZI)) S C0QD(ZI)=1 ; NOT NEW - PRESENT IN NEW AND OLD
	. E  S C0QD(ZI)=2 ; EXTRA IN OLD - WOULD NEED TO BE DELETED
	S ZI=""
	F  S ZI=$O(C0QD(ZI)) Q:ZI=""  D  ; FOR EACH ITEM
	. S @ZRTN@(C0QD(ZI),ZI)="" ; SET RESULTS IN RETURN ARRAY
	Q
	;
AND(ZRTN,ZNEW,ZOLD)	; RETURNS A LIST OF WHAT IS COMMON TO BOTH NEW AND OLD
	N ZD
	D UNITY("ZD",ZNEW,ZOLD)
	M @ZRTN=ZD(1)
	Q
	;
NAND(ZRTN,ZNEW,ZOLD)	; RETURNS WHAT IS IN A OR B BUT NOT BOTH
	N ZD
	D UNITY("ZD",ZNEW,ZOLD)
	M @ZRTN=ZD(0)
	M @ZRTN=ZD(2)
	Q
	;
AMINUSB(ZRTN,ZA,ZB)	; WHAT'S LEFT IN A AFTER REMOVING B FROM IT
	N ZD
	D UNITY("ZD",ZA,ZB)
	M @ZRTN=ZD(0)
	Q
	;
OR(ZRTN,ZA,ZB)	; WHAT'S IN A OR B OR BOTH
	N ZD
	D UNITY("ZD",ZA,ZB)
	M @ZRTN=ZD(0)
	M @ZRTN=ZD(1)
	M @ZRTN=ZD(2)
	Q
	;
END	;end of C0QSET;