; see if input user class array says 'check' is ok
ERR(SEQ,ERNUM,PARMS,OUTPUT,SCER)
;-- process errors
DTCHK(BEGINDT,ENDDT,INCL,ACTDT,INACTDT)
; -- given activation/inactivation dates and begin & end dates and include flag was it active?
DTCHK2(SCDATES,ACTDT,INACTDT)
;given scdates array was it active?
OKARRAY(ARRAY,CHECK)
; see if input array says 'check' should be used
; DOES NOT change any varriables - $$okarray(.xx,.yy) is safe...
; if array is null OR undefined it is ok
; if @array@(check) is defined it is ok
; if @array@('exclude') is defined results switch
; RETURNS: 1: Yes use/0: No don't