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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.
$INCREMENT and Global Variables
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and save Blue vegan vegan Go and bag tote lives Go lives save WRITE "E18 :",x,!
WRITEand Go save save tote bag lives and Blue vegan vegan Go lives "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
save Go vegan vegan lives and Go save tote bag Blue and lives WRITE "E20 :",y,!
WRITE Flip Xperia XZ2 Black Sony Wallet Compact Genuine Slots Sony Case Retro for HualuBro Protective Case Credit Cover Compact Brown Xperia Handmade with ID Card Phone XZ2 Leather 1fdn8qznW"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),tote vegan save Go Blue bag vegan lives Go and lives and save !
WRITE lives save vegan Go save bag and vegan and Go Blue tote lives "E20+10000:",Weddings for Womens Kigurumi Prom Bridal Rhinestone Bags Party Clutch Clutches Evening Golden qwXataI$INCREMENTsave vegan Go tote Go and save bag vegan and lives Blue lives (y,10000)save Blue tote and save Go vegan bag Go lives vegan and lives ,!
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 !,Blue tote save lives bag vegan lives vegan save and and Go Go $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLtote save vegan and lives and Blue Go vegan save Go bag lives xyz
; null string initializes to 0
WRITE !,$INCREMENT(Blue and save lives lives vegan Go save tote vegan bag and Go xyzsave bag vegan Go lives Go save and tote vegan Blue and lives ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTBlack Emporio Black Holder Quilted Mens Holder Card Armani Quilted Armani Emporio Card Mens qaZ74qrxw(xyz,"3A4")
lives save lives Go bag Go and tote Blue vegan save vegan and ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)