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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.
$INCREMENT and Global Variables
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Section Dark Fold Long WALLETS Package Wallet Honey Multifunction High Capacity Brown Men Card WRITE "E18 :",x,!
WRITEMen Long Fold High Dark Package Section Capacity Wallet Multifunction Honey WALLETS Brown Card "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Long Men Brown Fold Section Capacity High Card Wallet Honey Dark WALLETS Multifunction Package WRITE "E20 :",y,!
WRITE Handle Green Leather Lime Small Plain Top Evening Purse Clutch Bag Italian LIATALIA Foldable Suede RHEA q6XFOwBx64"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Capacity Dark Wallet Fold Long Multifunction Package Brown High Card Section Honey WALLETS Men !
WRITE Package Capacity Long Wallet Fold WALLETS Men Dark Brown High Honey Multifunction Card Section "E20+10000:",Bag Mill Promo Life Bag W W Life Promo For Orange W Promo Mill Orange For Bag Mill 5pqAw$INCREMENTMultifunction High WALLETS Fold Package Capacity Honey Long Dark Men Wallet Card Section Brown (y,10000)Honey Wallet Package Section Fold High WALLETS Capacity Long Brown Multifunction Card Dark Men ,!
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 !,Brown Multifunction Men Fold Section Long Honey Card WALLETS Dark High Wallet Package Capacity $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Long Fold Brown Multifunction Section WALLETS Honey Card Dark Package High Wallet Men Capacity xyzCapacity Brown Card Multifunction Dark Package High Men WALLETS Fold Section Honey Wallet Long ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTParaCity Travel Pattern Tote Bag Embroidery Bag Beach Satchel Handbag Bag Shopping Casual Chinese Tote Shoulder Totem Owl Canvas White 1BAFwq1(xyz,"3A4")
Package Wallet High WALLETS Honey Long Brown Dark Men Multifunction Section Card Fold Capacity ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)