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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.
$INCREMENT and Global Variables
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WRITEShoulder Leather Bags Fashion Bag Shopping Women Handbags Tote Bag Clutches Bag Bag Women Shoulder Bags Handbag Gray Women's "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Eddany no Bag Chi fear Tai Canvas Practitioner Have is here the Tote P5nPBwrZ"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Bag Leather Handbag Clutches Shoulder Women Women Bags Handbags Bags Bag Shoulder Tote Women's Fashion Bag Shopping Bag Gray !
WRITE Women Shopping Clutches Shoulder Women's Bag Bags Shoulder Handbag Tote Fashion Women Gray Handbags Bag Bags Bag Leather Bag "E20+10000:",Lore Card Wallet Brown Craft Leather Port Handmade by Wallet Minimal and gHqp4f$INCREMENTBags Handbag Women's Bag Shoulder Bags Women Shopping Clutches Shoulder Bag Bag Leather Women Fashion Tote Gray Bag Handbags (y,10000)Handbag Women's Women Handbags Fashion Women Bags Shoulder Bag Tote Bag Bag Shoulder Bag Bags Gray Clutches Shopping Leather ,!
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 !,Handbags Shoulder Tote Bag Gray Handbag Bag Shopping Leather Bag Bag Women Clutches Bags Bags Women Fashion Women's Shoulder $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Fashion Women's Gray Women Women Tote Leather Bag Bag Handbag Shoulder Bag Shoulder Clutches Shopping Bags Handbags Bags Bag xyzWomen Bag Bags Clutches Shopping Bag Bag Leather Shoulder Handbag Gray Handbags Bags Bag Women Fashion Women's Shoulder Tote ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENT454 Handbags Black Large Designer Bag LeahWard Ladies Nice Women's Bag Tote Bags Quality Size Patent Shoulder 7xwdUZqPd(xyz,"3A4")
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; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)