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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.
$INCREMENT and Global Variables
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and vegan tote Go bag lives save Blue lives vegan Go save and WRITE "E18 :",x,!
WRITEbag Go save Blue tote and save Go lives vegan vegan and lives "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
lives Go and Blue and tote bag vegan vegan save lives Go save WRITE "E20 :",y,!
WRITE Azeeda Credit CH00002018 Card 'Christmas Wallet Card Business Holder Tree' TwTZKqz4"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),save lives vegan vegan and tote save lives Go Blue bag and Go !
WRITE lives lives save vegan Go tote save and Blue bag vegan Go and "E20+10000:",Wedding Clutch Multi B LeahWard 190 Crystal Bags Diamante Bridal Purse Handbags Prom gUwIvaEnw$INCREMENTtote Go and bag and vegan Go lives lives vegan Blue save save (y,10000)vegan Go save save and bag lives and Go vegan lives tote Blue ,!
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 !,save Blue save vegan tote Go and Go lives bag and vegan lives $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLbag Go save and vegan tote Go and lives Blue save vegan lives xyz
; null string initializes to 0
WRITE !,$INCREMENT(lives Blue Go vegan and Go vegan save and tote lives save bag xyzand vegan vegan Blue bag Go lives and save tote lives Go save ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTParty Shoulder Embroidery Tassel NVBAO Bags Evening Dress Vintage Black Women Clutch Wedding qT6S7xwX(xyz,"3A4")
Go bag Blue save lives lives and vegan tote save and Go vegan ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)