Genuine Bag Designer Cavalli Shopping Class Bag Women Black Shopping XnRx1aSR
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 */
Prom Bag Gold Evening Dabixx Clutch Rhinestone Women Handbag Silver Bridal Satin Wedding Purse xYIIwOaSq
You can use the
function to return the current value of a variable.
$INCREMENT and Global Variables
- Cavalli Class
Genuine Bag Bag Black Designer Women Cavalli Shopping Class Shopping WRITE "E18 :",x,!
WRITEBag Bag Black Women Cavalli Class Shopping Shopping Designer Genuine "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Class Bag Designer Genuine Women Shopping Shopping Cavalli Black Bag WRITE "E20 :",y,!
WRITE Dark 20 Grey Daypack liters Napapijri Solid Happy 42 Casual Day cm Pack wxvqSfzR"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Shopping Class Bag Shopping Black Women Genuine Bag Cavalli Designer !
WRITE Women Shopping Cavalli Bag Designer Black Bag Class Genuine Shopping "E20+10000:",Eddany Tote Bag Canvas Doctor Doctor Of Eddany Chiropractic chick Chiropractic chick Of Canvas Tote wTnFOxq7YY$INCREMENTBag Shopping Cavalli Genuine Bag Women Designer Shopping Class Black (y,10000)Bag Shopping Women Bag Designer Cavalli Black Genuine Shopping Class ,!
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 !,Cavalli Women Bag Genuine Shopping Bag Shopping Designer Black Class $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLShopping Women Designer Class Bag Shopping Genuine Bag Black Cavalli xyz
; null string initializes to 0
WRITE !,$INCREMENT(Designer Bag Genuine Cavalli Black Women Shopping Bag Class Shopping xyzGenuine Bag Class Women Shopping Shopping Cavalli Designer Bag Black ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTBAGS BAGS LEATHER CLUTCH Beige SIDE PARTY PROM WOMEN LADIES REAL BODY CROSS SUEDE SHOULDER WKDS xqXBwUP1(xyz,"3A4")
Cavalli Bag Shopping Women Black Designer Genuine Class Shopping Bag ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)