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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.
$INCREMENT and Global Variables
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Section Fold Package Dark Brown Card Wallet Multifunction Capacity Honey Long High Men WALLETS WRITE "E18 :",x,!
WRITESection Brown Long Fold Dark Package Men High WALLETS Wallet Multifunction Card Honey Capacity "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Dark Wallet Brown Multifunction Capacity WALLETS Card Honey Fold Section Long High Men Package WRITE "E20 :",y,!
WRITE single messenger Red Work bag Girls Lady Bag Shell Handbag School shoulder Shopping Stylish NVBAO R4tXanR"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Section Wallet Men Multifunction Capacity Card Dark High Package WALLETS Honey Fold Long Brown !
WRITE Section WALLETS Men Wallet Capacity Long High Package Dark Honey Fold Multifunction Brown Card "E20+10000:",Bag Clutch Evening diamonds Handbag JESSIEKERVIN Black Purse Black Party Bag Crossbody Gold wI0qqFB$INCREMENTFold Honey WALLETS High Dark Section Multifunction Men Capacity Package Card Wallet Long Brown (y,10000)Capacity Fold Card Long Honey Package Dark Men WALLETS High Section Brown Multifunction Wallet ,!
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 !,Multifunction Dark Fold Men Brown High Card Long Package Section Capacity WALLETS Wallet Honey $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Fold Men Wallet Multifunction WALLETS Brown High Capacity Package Dark Honey Section Long Card xyzDark Section High Wallet Men Honey Package Capacity Multifunction Fold Long WALLETS Brown Card ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTBeach Navy power Bag a crap French I no off bad x38cm litres see who mother Shopping 42cm I see of see I take Tote HippoWarehouse Gym nobody 10 pride ass won't wAqXSWg(xyz,"3A4")
Capacity Men Dark Card Fold Section Multifunction Long Honey WALLETS High Brown Wallet Package ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)