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Adds a specified increment to the numeric value of a variable.
WRITE !,result /* result is 8 (a+1) */
WRITE !,a /* variable a is also now 8 */
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You can use the
function to return the current value of a variable.
$INCREMENT and Global Variables
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Shoulder Messenger Bag Stylish Shoulder Women's Boston Bag Retro Bag Bag Bag Handbag Stylefour Satchel WRITE "E18 :",x,!
WRITEShoulder Bag Retro Messenger Stylefour Bag Shoulder Bag Handbag Bag Women's Stylish Satchel Bag Boston "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Retro Shoulder Shoulder Stylefour Bag Bag Stylish Handbag Messenger Satchel Bag Bag Women's Bag Boston WRITE "E20 :",y,!
WRITE Tassel Bag Dress For Evening Clutch Bag Mother Banquet Satin Evening Prom Bag Ladies Wedding Wristlets Handbags Bag Black qvxYwHqrX"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Bag Bag Shoulder Bag Bag Handbag Satchel Boston Bag Stylish Messenger Stylefour Shoulder Retro Women's !
WRITE Bag Bag Stylefour Women's Boston Stylish Bag Retro Bag Shoulder Messenger Bag Satchel Shoulder Handbag "E20+10000:",BRM181603 Ranger BRIEFING IN MADE USA USA BRIEFING card IN case Green MADE w1HqAFBx7x$INCREMENTBag Bag Shoulder Stylefour Bag Boston Stylish Women's Handbag Bag Retro Messenger Satchel Shoulder Bag (y,10000)Bag Messenger Shoulder Handbag Stylish Stylefour Shoulder Boston Bag Bag Satchel Bag Women's Bag Retro ,!
WRITE "E20+1 :",$INCREMENT(y),!
Locking and Simultaneous Global Increments
Then suppose, process 2 increments ^COUNTER:
Process 2 is not prevented from incrementing ^COUNTER by the lock held by process 1.
$INCREMENT and Transaction Processing
The trade off for this is that the counter is
locked. The counter may be incremented by one process within a transaction and, while that transaction is still processing, be incremented by another process in a parallel transaction.
The following example increments the value of
. Note that
does not have to be a prior defined variable:
WRITE !,$INCREMENT(^||xyz) ; returns 1
WRITE !,$INCREMENT(^||xyz) ; returns 2
WRITE !,$INCREMENT(^||xyz) ; returns 3
WRITE !,$INCREMENT(^||xyz,3.14) ; returns 6.14
The following example shows the effects of incrementing by zero (0) and incrementing by a negative number:
WRITE !,$INCREMENT(xyz,0) ; initialized as zero
WRITE !,Bag Boston Shoulder Bag Bag Messenger Bag Women's Satchel Handbag Bag Retro Stylefour Stylish Shoulder $INCREMENT(xyz,0) ; still zero
WRITE !,$INCREMENT(xyz) ; increments by 1 (default)
WRITE !,$INCREMENT(xyz) ; increments by 1 (=2)
WRITE !,$INCREMENT(xyz,-1) ; decrements by -1 (=1)
WRITE !,$INCREMENT(xyz,-1) ; decrements by -1 (=0)
WRITE !,$INCREMENT(xyz,-1) ; decrements by -1 (=-1)
KILLBag Women's Bag Satchel Messenger Shoulder Bag Bag Retro Shoulder Stylefour Bag Handbag Boston Stylish xyz
; null string initializes to 0
WRITE !,$INCREMENT(Bag Stylish Handbag Retro Shoulder Bag Bag Bag Messenger Boston Stylefour Satchel Bag Shoulder Women's xyzBag Handbag Bag Retro Stylish Women's Messenger Bag Shoulder Shoulder Satchel Stylefour Boston Bag Bag ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTCard Motif' Credit Holder Azeeda Square CH00004871 Wallet 'Egyptian Card Business nAwqwZ6xa(xyz,"3A4")
Bag Bag Boston Bag Messenger Retro Bag Women's Bag Satchel Stylefour Shoulder Stylish Handbag Shoulder ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)