Answer Posted / c4

TAATOOLS are nice but can get lost, messed up or not be loaded.
This gets the date a week back.
To add change date to YY001 if days are greater than 365 or 366 depending on leap year.


/* GO BACK A WEEK*/
DOFOR VAR(&INT) FROM(1) TO(7)
CVTDAT DATE(&DATE) TOVAR(&JULIAN) TOFMT(*JUL) +
TOSEP(*NONE)
CHGVAR VAR(&DECJULIAN) VALUE(&JULIAN)
CHGVAR VAR(&DECJULIAN) VALUE(&DECJULIAN - 1)
CHGVAR VAR(&JULIAN) VALUE(&DECJULIAN)

/* CHECK IF DECEMBER 31 */
IF COND(%SST(&JULIAN 3 3) *EQ '000') THEN(DO)
CHGVAR VAR(&YEAR#) VALUE(&YEAR)
CHGVAR VAR(&YEAR#) VALUE(&YEAR# - 1)
CHGVAR VAR(&YEAR) VALUE(&YEAR#)
/* CHECK IF LEAP YEAR */
CHGVAR VAR(&REM) VALUE(&YEAR# / 4)
CHGVAR VAR(&REM) VALUE(&REM * 4)
IF COND((&YEAR# - &REM) *EQ 0) THEN(DO)
CHGVAR VAR(&JULIAN) VALUE(&YEAR || '366')
ENDDO
ELSE DO

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