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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.
$INCREMENT and Global Variables
- Cavalli Class
- Fashion Cross Body bag
Crossbody Genuine Cross Cavalli Body Bag Class £320 Bag Women Designer Brown 00 RRP WRITE "E18 :",x,!
WRITEBag 00 Crossbody £320 RRP Women Genuine Designer Class Brown Cross Bag Body Cavalli "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Genuine Crossbody Designer £320 Brown Women Bag Cavalli Cross Class 00 RRP Body Bag WRITE "E20 :",y,!
WRITE Large Dark Evening Blue Tskybag Oversized Purse Clutch Pu Wristlet Bag Womens Handbag leather qwRBXUw"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Genuine Cavalli Class £320 Bag RRP Cross Brown Crossbody Women Designer Body 00 Bag !
WRITE Bag Designer Brown RRP Genuine 00 Crossbody Bag Class Women Body £320 Cross Cavalli "E20+10000:",cm 15 and Black 30 Red x Clairefontaine Backpack x 42 qtYwB$INCREMENTCross Brown Body Crossbody Bag Women Designer Class Genuine RRP Bag Cavalli £320 00 (y,10000)Brown Class Bag £320 Bag Crossbody Genuine RRP 00 Cross Women Body Designer Cavalli ,!
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 !,£320 Cross Class 00 Designer Crossbody Brown Bag Cavalli Genuine RRP Women Body Bag $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLGenuine Class RRP Cross Brown Crossbody £320 Women Bag Cavalli Designer Body Bag 00 xyz
; null string initializes to 0
WRITE !,$INCREMENT(Designer Women Cavalli Brown £320 00 Body Crossbody RRP Cross Bag Class Genuine Bag xyzBag Designer 00 Body Women Bag Genuine Brown Cavalli RRP Cross Class Crossbody £320 ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTGorgeous Design Evening Diamante Clutch FREE DELIVERY UK Purple Bag nn7AxqHUr(xyz,"3A4")
Women Bag Cavalli 00 Bag £320 Cross Brown Body Designer Crossbody Genuine RRP Class ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)