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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.
$INCREMENT and Global Variables
- W 24, H 15, D 9 cm (W 9, H 6, D 4 inches)
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Blue Royal Satchel HandBags Quilted Girly Girly Blue Mini HandBags Satchel Quilted Royal Mini Girly WRITE "E18 :",x,!
WRITEBlue Satchel Quilted Mini HandBags Royal Royal Blue Mini Quilted Girly Girly HandBags Satchel Girly "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Mini Satchel Royal Girly Satchel Blue HandBags Girly HandBags Blue Mini Royal Girly Quilted Quilted WRITE "E20 :",y,!
WRITE Purses Holder Wallets Female Nubuck AFfeco Plaid Leather Short Black Women Card PU wgxvTHB"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Blue Mini Girly Girly Satchel Mini Blue Royal Satchel Quilted Quilted Royal HandBags HandBags Girly !
WRITE HandBags Satchel Royal Satchel Quilted Blue Girly Girly Mini Mini Blue Girly Quilted HandBags Royal "E20+10000:",Purse DELIVERY Satin Clutch FREE Satin UK Navy Gorgeous Clutch Navy FREE Gorgeous Purse Evening Evening qB6ABTwP$INCREMENTHandBags Girly Blue Quilted Mini Satchel Girly Quilted Mini Royal Satchel Royal HandBags Girly Blue (y,10000)Girly Girly Blue Royal Girly Royal HandBags HandBags Satchel Mini Blue Mini Quilted Satchel Quilted ,!
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 !,Quilted HandBags Blue Mini Mini Royal Girly Satchel Girly Girly Quilted Blue Royal Satchel HandBags $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Royal Blue Mini HandBags Girly Girly Satchel Quilted HandBags Royal Girly Satchel Blue Mini Quilted xyzMini Girly Satchel Quilted Girly Blue Girly HandBags Quilted Satchel Royal Mini HandBags Royal Blue ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTAttractive Leather Shoulder Grey Design Messenger Canvas Dark Bag Genuine Decorlives Bag 100 qRAw6UY(xyz,"3A4")
Mini Girly Satchel Satchel HandBags Royal Royal Quilted Blue HandBags Mini Quilted Blue Girly Girly ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)