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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.
$INCREMENT and Global Variables
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Holder Wallet Water Lady Bennigiry Clutch Purse Credit Pool Ball Long Swimming Card WRITE "E18 :",x,!
WRITEWallet Ball Card Long Credit Lady Pool Swimming Bennigiry Clutch Purse Holder Water "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Ball Clutch Water Bennigiry Card Swimming Wallet Purse Lady Long Credit Holder Pool WRITE "E20 :",y,!
WRITE Bag Big Grey Women Shop Small Handbag Size Fabric Lightweight Multiple Cross Pocket Body Zip Rainproof Dark Shoulder Messenger HHO1q"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Wallet Holder Long Clutch Pool Credit Purse Swimming Card Ball Lady Water Bennigiry !
WRITE Holder Wallet Long Credit Bennigiry Purse Ball Swimming Card Clutch Water Lady Pool "E20+10000:",United Hand Lady Bag YJIUJIU Messenger States And Shoulder Female Bag Brown Fashion Wild Bag Europe Bag The Soft RRz1xA4qw$INCREMENTClutch Pool Purse Credit Swimming Card Water Long Bennigiry Holder Wallet Lady Ball (y,10000)Lady Purse Pool Credit Swimming Clutch Ball Bennigiry Wallet Card Long Water Holder ,!
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 !,Holder Pool Bennigiry Swimming Ball Long Wallet Purse Water Clutch Credit Lady Card $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLClutch Purse Credit Long Swimming Bennigiry Lady Pool Card Holder Ball Water Wallet xyz
; null string initializes to 0
WRITE !,$INCREMENT(Swimming Clutch Lady Long Ball Purse Pool Credit Water Bennigiry Wallet Holder Card xyzCredit Water Lady Pool Swimming Ball Purse Long Wallet Clutch Bennigiry Holder Card ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENT12''x7''x4'' Woman Blue Satchel 100 leather CTM Style Blu Made Genuine Italy in Handbag xOwddPI4(xyz,"3A4")
Holder Long Bennigiry Lady Purse Credit Ball Clutch Card Water Pool Wallet Swimming ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)