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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.
$INCREMENT and Global Variables
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Shoulder Handbag Bag apricot Women' Evening Clutch Wedding Shiny Party s 90S Elegant Bag WRITE "E18 :",x,!
WRITEEvening Clutch 90S Bag Elegant Bag Shiny Party Women' apricot Wedding Handbag Shoulder s "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Party Shiny Handbag Women' Bag 90S Elegant s Shoulder Wedding Bag Clutch Evening apricot WRITE "E20 :",y,!
WRITE Realtree Wallet Custom Crossbones Badger AP Checkbook Long New Black Camo Skull and q70vxwB7"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),90S Bag Wedding Clutch Elegant Women' Shiny s apricot Party Bag Handbag Shoulder Evening !
WRITE s Shoulder Shiny Evening apricot 90S Party Elegant Bag Clutch Women' Handbag Bag Wedding "E20+10000:",Flip Dark Brown Milkman Wallet Cowhide Money Soft Puzzle Quality Magic Leather fxIHwTq1$INCREMENTWomen' s apricot Elegant Shoulder Evening Handbag Shiny Clutch Bag Party Bag 90S Wedding (y,10000)90S Women' Shoulder s Shiny Handbag Evening Bag Party Clutch Wedding apricot Bag Elegant ,!
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 !,Shiny Bag s apricot 90S Wedding Party Handbag Bag Women' Shoulder Clutch Elegant Evening $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(90S Women' Party s Wedding Evening apricot Elegant Clutch Shiny Shoulder Bag Bag Handbag xyzHandbag Bag Wedding Elegant apricot Evening s Women' Shoulder Shiny Bag Party 90S Clutch ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTLegends bag are are in January tote born Black Legends 0nqdwSfdxB(xyz,"3A4")
90S Elegant s apricot Women' Bag Bag Evening Handbag Clutch Party Wedding Shiny Shoulder ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)