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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.
$INCREMENT and Global Variables
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Crystal Diamonds Color Multicolor Handbag KERVINFENDRIYUN Women Small Purse Beaded Ball and Blue Bridal 2 Wedding Rhinestone Bag Round Cute Red Party Mini Clutch Evening WRITE "E18 :",x,!
WRITEParty Crystal Women Bridal Evening Handbag Wedding and KERVINFENDRIYUN Cute Bag Diamonds Round Mini Clutch Multicolor Red Purse Rhinestone Beaded Small Color Blue 2 Ball "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Handbag Mini Evening Clutch KERVINFENDRIYUN Women Party Blue 2 Crystal Ball Wedding Cute Diamonds Purse Color and Bag Round Red Bridal Small Rhinestone Beaded Multicolor WRITE "E20 :",y,!
WRITE S Black Size Men's Diesel One Raised Hiresh up Wallet PIa6aOW"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Color Wedding Beaded Women Party Mini Multicolor 2 Bag Rhinestone Cute and Crystal KERVINFENDRIYUN Ball Purse Clutch Diamonds Bridal Blue Evening Small Round Red Handbag !
WRITE Rhinestone Multicolor Clutch Purse Blue Mini Cute Color Handbag and Party Diamonds Beaded Red Wedding Crystal Round Evening Bridal KERVINFENDRIYUN Women Small 2 Bag Ball "E20+10000:",Handbag TU Guess VY695919 Mujer Handbag POPPY Red Guess U EAExqOrS8n$INCREMENTBag Beaded KERVINFENDRIYUN Blue Bridal Women Evening Crystal and Color Wedding Rhinestone Purse Round Multicolor Party Red 2 Cute Small Diamonds Handbag Clutch Ball Mini (y,10000)Rhinestone Women Small Beaded Clutch Color Wedding Evening Diamonds Ball Round Purse Crystal and Bridal Handbag Mini 2 Bag Red Party KERVINFENDRIYUN Multicolor Blue Cute ,!
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 !,Bag Clutch Round and Color Rhinestone Red Diamonds Ball Purse Women Crystal Bridal 2 Beaded Mini Multicolor KERVINFENDRIYUN Blue Wedding Evening Small Party Cute Handbag $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Bridal Ball Handbag and Small Blue Multicolor 2 Bag Red Wedding Purse Round Crystal Clutch Party Rhinestone Beaded Women KERVINFENDRIYUN Cute Mini Evening Diamonds Color xyzRed KERVINFENDRIYUN Small Bag Evening Bridal Wedding Ball Cute Color Beaded Crystal Round Diamonds Women and Party Multicolor Rhinestone Handbag Mini Purse 2 Blue Clutch ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTBags Women Calvin Bag 101 Bags Shoppers and Shoppers Women Brand For White Bianco Shoulder Edge Camera Shoulder and For White Colour Model Klein HBYwxqIrY(xyz,"3A4")
Purse Round Crystal Bridal Party Ball Clutch Women Multicolor KERVINFENDRIYUN Cute Beaded Bag Wedding Red Small Rhinestone Color 2 Diamonds Handbag Mini and Blue Evening ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)