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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.
$INCREMENT and Global Variables
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Born In Tote For Natural Bag Birthday Life 30th Print4u 1998 Shopping WRITE "E18 :",x,!
WRITEShopping 30th Print4u Natural Born For Tote In Bag 1998 Life Birthday "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Bag 30th Tote Life Natural 1998 For Birthday Print4u Born In Shopping WRITE "E20 :",y,!
WRITE Italian leather tote adjustable styled Black bag Designer to strap medium handbags large buck shoulder ladies for with Women faux ROMA nu xwwYaU7S"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Natural Born Birthday Life Print4u For In 30th Shopping Tote 1998 Bag !
WRITE Birthday Life Print4u 1998 30th Bag Natural For Shopping Tote Born In "E20+10000:",Together Anything Literally And Small Go Bag Like We Tote Avocado 5WpAcxU$INCREMENTNatural Bag Print4u For Life In Born Birthday 30th Shopping 1998 Tote (y,10000)1998 In Life For Bag Birthday Natural Tote Print4u Shopping 30th Born ,!
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 !,30th Life 1998 Tote For Natural Shopping Bag Print4u In Birthday Born $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLNatural Life Birthday For Born Shopping Print4u Tote 1998 30th Bag In xyz
; null string initializes to 0
WRITE !,$INCREMENT(Born Life Bag 30th Shopping Print4u 1998 Birthday Natural Tote For In xyzBag Born 1998 30th Natural Shopping Print4u Tote In Life For Birthday ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTBack Red Damara Evening Womens Bag Sparkling Smooth Rhinestones Oval wqOBPgzq(xyz,"3A4")
30th Print4u Bag Tote Shopping Birthday Life 1998 Born Natural In For ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)