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 */
Handbag Tote Yellow Work New Shoulder Office Designer Womens Ladies Bag UK Tweed wZWt0qH1
You can use the
function to return the current value of a variable.
$INCREMENT and Global Variables
- Cavalli Class
Women Class Cavalli Designer Shopping Bag Shopping Bag Genuine Black WRITE "E18 :",x,!
WRITEBag Cavalli Shopping Shopping Black Genuine Designer Women Class Bag "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Black Women Shopping Bag Bag Genuine Cavalli Designer Shopping Class WRITE "E20 :",y,!
WRITE Scully Women's Ice Wallet Lambskin Leather H795 Leather Women's Scully Soft E1qwC7"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Bag Bag Black Shopping Genuine Women Class Designer Cavalli Shopping !
WRITE Women Black Bag Class Shopping Bag Designer Cavalli Shopping Genuine "E20+10000:",Divina Mario by Argento Women’s Silver Valentino Valentino Bag Shoulder OqIagcw7x$INCREMENTDesigner Women Class Cavalli Bag Bag Shopping Genuine Shopping Black (y,10000)Shopping Genuine Black Shopping Bag Class Cavalli Designer Women 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 !,Black Bag Genuine Shopping Cavalli Class Bag Women Shopping Designer $INCREMENT(xyz,0) ; still zero
WRITE !,$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 Bag Bag Women Black Designer Cavalli Class Shopping Shopping xyz
; null string initializes to 0
WRITE !,$INCREMENT(Genuine Bag Black Shopping Cavalli Class Shopping Bag Designer Women xyzShopping Black Designer Cavalli Genuine Shopping Women Class Bag Bag ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTLadies Handbag Clutch Envelope Bradal Tskybag Bag Prom Womens Bag Diamante Evening Clutch Style Black Purse Party Hand 5ZwvqUw(xyz,"3A4")
Bag Designer Bag Shopping Genuine Class Shopping Cavalli Women Black ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)