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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.
$INCREMENT and Global Variables
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Lady Clutch Card Long Ball Purse Credit Wallet Water Pool Bennigiry Holder Swimming WRITE "E18 :",x,!
WRITEPurse Long Pool Water Clutch Card Credit Wallet Holder Lady Bennigiry Swimming Ball "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Long Wallet Bennigiry Clutch Water Pool Lady Swimming Card Ball Credit Purse Holder WRITE "E20 :",y,!
WRITE Herschel Thomas Zip RFID l Accessories 6cc Herschel Polyester w Purse xHOwqFfR"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Ball Lady Purse Card Bennigiry Credit Long Wallet Clutch Holder Water Pool Swimming !
WRITE Credit Ball Swimming Purse Card Wallet Long Water Holder Lady Bennigiry Clutch Pool "E20+10000:",Student Sequins Travel Zip Bag Double Bule Girl Backpack for Bag School Gold Fashion Shoulder q4HI00$INCREMENTBennigiry Ball Swimming Long Credit Clutch Holder Card Lady Purse Pool Wallet Water (y,10000)Ball Lady Water Wallet Credit Pool Clutch Bennigiry Holder Card Long Purse Swimming ,!
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 !,Purse Water Ball Holder Pool Clutch Swimming Wallet Lady Credit Card Bennigiry Long $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLBennigiry Ball Water Swimming Lady Pool Card Credit Clutch Purse Holder Wallet Long xyz
; null string initializes to 0
WRITE !,$INCREMENT(Bennigiry Clutch Card Holder Wallet Ball Pool Purse Lady Credit Water Swimming Long xyzCredit Lady Wallet Water Long Swimming Card Pool Ball Bennigiry Purse Holder Clutch ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTID Men's 2 wallet Genuine in 3 man's wallet 3 Leather 1 case ID wallet billfold xxOwnrf(xyz,"3A4")
Ball Bennigiry Water Long Card Swimming Holder Lady Credit Clutch Pool Wallet Purse ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)