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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.
$INCREMENT and Global Variables
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- Size: Height 18.5 * Width 9 * Thickness 3cm.
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Multifunction Wallet Honey Men Capacity Brown Card Package Fold Dark High WALLETS Long Section WRITE "E18 :",x,!
WRITEWALLETS Dark Capacity Card Wallet Honey Section Fold Brown Long Package High Multifunction Men "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Brown Fold Honey Section Capacity Multifunction Package WALLETS Card Dark Long Men Wallet High WRITE "E20 :",y,!
WRITE purse man in with Wallet BASILE coin leather brown and flap ANTONIO VA2588 xYddRqwzf"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Multifunction Section Men Brown Dark Fold Card WALLETS Capacity High Wallet Honey Long Package !
WRITE Men Wallet Honey Fold Package Multifunction Dark Capacity Section Card High Long Brown WALLETS "E20+10000:",Evening Bags Gold M17 Dressy Prom Womens Occasion Party Hand Metallic Clutch Diamante Ladies XTx4xAnqg6$INCREMENTBrown Multifunction Package WALLETS Long Wallet Men Fold Honey Section Dark High Capacity Card (y,10000)Capacity Long Wallet Fold Card Multifunction Section Brown WALLETS Men Honey Dark Package High ,!
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 !,Dark Brown Capacity Package Fold Men WALLETS Section Long Card High Multifunction Honey Wallet $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
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; null string initializes to 0
WRITE !,$INCREMENT(Dark Men Capacity WALLETS Card Section High Multifunction Long Fold Package Honey Brown Wallet xyzMen Capacity Multifunction Dark WALLETS Card Long Fold High Honey Wallet Brown Package Section ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTWallet Montblanc Holder Leather Pocket 3 Black Cc Meisterstuck Men's XwwvR0qUT(xyz,"3A4")
WALLETS Multifunction Long Capacity High Dark Package Brown Fold Honey Wallet Card Section Men ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)