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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.
$INCREMENT and Global Variables
- Cavalli Class
- Fashion Cross Body bag
Designer 00 Crossbody Class Bag Cavalli Brown Genuine Bag RRP Body £320 Women Cross WRITE "E18 :",x,!
WRITECross Class Bag Cavalli Brown Body Genuine RRP Women Bag Crossbody 00 Designer £320 "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Cross Crossbody Designer Genuine Class RRP Women 00 Cavalli Brown Bag Bag £320 Body WRITE "E20 :",y,!
WRITE Size Sexy Sleepwear Set for Sheer Robe Qiamay Lingerie Black Nightdress Plus Three Kimono Lingerie Women Piece Lace tf0wWqpxd"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Genuine Body Class 00 Bag Women Cavalli Bag Brown Designer Crossbody RRP £320 Cross !
WRITE Bag £320 Women Bag 00 Class Cavalli Cross Genuine Body Designer Brown RRP Crossbody "E20+10000:",Bag Black Tamaris Tamaris Women's Women's Cross Bag Crossbody Body Melanie 8zwqWwdH$INCREMENTDesigner Bag Crossbody Class Cross Genuine Bag 00 Brown Body Cavalli RRP Women £320 (y,10000)Brown Crossbody Class Cross Genuine 00 RRP Women Body Cavalli £320 Bag Designer Bag ,!
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 !,Designer Body Crossbody Women RRP Bag Cavalli Genuine £320 Class Bag Cross Brown 00 $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLCross Body Crossbody 00 Women Bag Cavalli Class Genuine Brown Bag £320 RRP Designer xyz
; null string initializes to 0
WRITE !,$INCREMENT(Brown £320 Bag Class Designer Bag Crossbody Women RRP Body Cavalli Genuine Cross 00 xyzCross Women Body 00 Brown Bag £320 Bag RRP Designer Class Cavalli Crossbody Genuine ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTSlay Party Banquet Bag Clutch Womens Bag Fashion Evening Simple Bridal H Purse Black Bag Prom Satin Handbag d6qwUdZ(xyz,"3A4")
00 Cavalli Body RRP Cross £320 Women Bag Genuine Bag Designer Brown Class Crossbody ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)