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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.
$INCREMENT and Global Variables
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Handbags Bags Print Faux Croc Her Shoulder Bag Women's Handbag Holiday Tote LeahWard Navy Leather For 586 WRITE "E18 :",x,!
WRITEHoliday Croc 586 Bags Handbags Shoulder Leather Tote Bag For Women's Handbag LeahWard Print Navy Her Faux "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Colour Koko Koko Colour Womens Clutch Womens Block Bag Koko Clutch Bag Colour Womens Block qv5Y8"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),For Croc Shoulder Tote Bag Holiday Print Navy Faux Bags Women's Leather Handbags 586 LeahWard Handbag Her !
WRITE Bag LeahWard 586 Women's Navy Handbag Her Leather Bags Shoulder Handbags Print Holiday Tote For Faux Croc "E20+10000:",Bag Detail Faux Lock Party Suede Black Handbag Ring Ladies Clutch Metal xXd8p8q$INCREMENTLeahWard Navy Holiday For Print Bags Faux Bag Croc Shoulder Tote Her Handbags Handbag 586 Leather Women's (y,10000)Holiday Women's Bags Print For Tote LeahWard Bag Shoulder Handbags Croc Her Handbag Leather Faux 586 Navy ,!
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 !,Bags Shoulder Holiday Faux Her Tote 586 Croc Navy Leather Women's Handbags Handbag Print For LeahWard Bag $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Leather Holiday Bag Croc Women's Her Handbag Handbags For Bags 586 Tote Shoulder Faux LeahWard Navy Print xyzPrint LeahWard 586 Leather Holiday Handbags For Handbag Tote Shoulder Her Faux Women's Navy Croc Bag Bags ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTClutch Parody Themed Gold Bag Gold Absolut Alcohol Statement Whovian Metallic pq5Xw1(xyz,"3A4")
Print Faux Tote Holiday Bags Bag Croc 586 Her Women's Handbag For Handbags Navy Leather Shoulder LeahWard ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)