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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.
$INCREMENT and Global Variables
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Shoulder Tote Navy Her Handbags For LeahWard Women's Leather Bags Handbag Croc Holiday Print 586 Faux Bag WRITE "E18 :",x,!
WRITEPrint LeahWard Bag Handbag Women's Croc Tote Bags Handbags Her Faux Shoulder For Leather 586 Holiday Navy "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Gold Chief Gift tone Police Cufflinks Money Engraved Set Clip Constable Assistant qZwg67"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Shoulder 586 Handbags Print Bag Her LeahWard Navy For Holiday Croc Women's Leather Faux Bags Tote Handbag !
WRITE Leather Women's Bags Faux Print For LeahWard Shoulder Navy Her Bag Croc Handbags Tote 586 Holiday Handbag "E20+10000:",Blue Vintage Clutches Clutch purse Beaded Ladies Silver Handbags Flada Women's Evening for Bridesmaid w6ZAt7x$INCREMENTLeahWard Shoulder Handbags Holiday Leather Tote Croc Print Navy Handbag Her For 586 Faux Bags Bag Women's (y,10000)Leather Bag Print Handbag Faux Women's Croc Tote Bags Her Navy Handbags 586 Holiday For Shoulder LeahWard ,!
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 !,Leather Holiday Print For Her Faux Navy LeahWard Women's Bags Tote 586 Handbags Shoulder Bag Croc Handbag $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(For Bag Women's Leather Handbags Shoulder Print Holiday 586 Navy Tote Handbag LeahWard Faux Bags Her Croc xyzFaux Navy Her Handbags 586 Bags Women's Croc Handbag Tote For Print Shoulder LeahWard Leather Holiday Bag ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTSabian Cross Body Dream Women's Bag Mini Sparkly Gold Handbag Blue Crossbody Kipling Zq6n5pHx(xyz,"3A4")
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; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)