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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.
$INCREMENT and Global Variables
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lives and Go tote and Go save Blue save bag vegan lives vegan WRITE "E18 :",x,!
WRITEand lives tote Blue lives save vegan Go Go bag vegan save and "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
vegan Blue lives and bag tote and save save Go lives vegan Go WRITE "E20 :",y,!
WRITE Azeeda Holder Business CH00012879 Card 'Eritrea Credit Wallet Country' Card rZEIwrqn"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),and bag lives lives and Go Blue tote save vegan Go save vegan !
WRITE lives and bag and tote save Go Blue save vegan Go vegan lives "E20+10000:",Beach The Gym 42cm Shopping Late litres Tote But Worth Always 10 Grey Wait x38cm Bag Grey 18wHqAx$INCREMENTbag Go save tote and Go vegan lives vegan and Blue lives save (y,10000)save save Go bag lives Go and vegan Blue and vegan tote 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 !,vegan vegan Go Go Blue save and lives tote and save bag 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)
KILLvegan and save Go lives save vegan and Go bag lives Blue tote xyz
; null string initializes to 0
WRITE !,$INCREMENT(Go bag tote vegan and lives save and Blue save lives vegan Go xyztote and save lives bag save Go and lives vegan Go vegan Blue ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTBlogging Retro Red Is Is My Red My Flight Therapy Blogging Retro Therapy Bag 8qUBwAtwx(xyz,"3A4")
Go lives Go and bag Blue vegan save and lives save tote vegan ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)