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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.
$INCREMENT and Global Variables
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Women Shoulder New Fashoin 2018 Bag Crossbody NICOLE Khaki Handbag amp;DORIS PU Pendant Black Casual Bag Girls for Tote Hardware Bag WRITE "E18 :",x,!
WRITENew Handbag PU NICOLE Hardware Bag 2018 Black for Bag Women Crossbody Shoulder Pendant amp;DORIS Bag Girls Tote Casual Khaki Fashoin "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Bag Women’s Black Maisie Black Cross LYDC LYDC Body Women’s w4pqafn"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Bag Crossbody Bag NICOLE Black Handbag Casual New Hardware amp;DORIS Shoulder Pendant Women Khaki Fashoin Girls PU Tote 2018 for Bag !
WRITE 2018 Handbag Shoulder NICOLE Women Fashoin amp;DORIS Hardware Black Crossbody Casual PU Tote Bag Khaki New Girls Bag for Pendant Bag "E20+10000:",Wallet 'Suckling Credit Card Pig' Business CH00003712 Azeeda Card Holder PCAqO$INCREMENTfor Casual Bag New Girls Handbag Bag Hardware NICOLE 2018 Women Crossbody Khaki PU Tote amp;DORIS Bag Shoulder Black Fashoin Pendant (y,10000)Girls Tote Bag Khaki Casual Shoulder Handbag Hardware New amp;DORIS Bag for 2018 Women NICOLE Pendant Black Fashoin Crossbody Bag PU ,!
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 !,Handbag Bag Casual Shoulder Girls Khaki Black Fashoin Bag NICOLE 2018 Crossbody Hardware Tote Bag PU for Pendant New Women amp;DORIS $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Khaki amp;DORIS Hardware for New Pendant Crossbody Black NICOLE Bag Bag PU Casual Tote Girls Handbag Fashoin Bag Women Shoulder 2018 xyzBag 2018 Handbag amp;DORIS Shoulder Bag Casual Khaki Women Pendant Black Fashoin New NICOLE Bag Girls Hardware Crossbody PU for Tote ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTLong Stylish Women Clutch Real Envelope Over Shape For Purse Flap Leather rabbit Lovely CwxTZZ(xyz,"3A4")
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; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)