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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.
$INCREMENT and Global Variables
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Natural Print4u Bag Life Shopping In Tote Born 30th 1998 Birthday For WRITE "E18 :",x,!
WRITEShopping For Natural Born Birthday Bag Tote In Life Print4u 1998 30th "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
30th 1998 For Natural Print4u Shopping Birthday Tote Bag In Life Born WRITE "E20 :",y,!
WRITE Clove Women’s Valentino Mario Bordeaux Business by Purple bag Valentino 1FFqxtRI"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Birthday 1998 Tote Born 30th Bag Print4u For Shopping Natural In Life !
WRITE Life 30th Tote In Bag For Natural Born Shopping Print4u 1998 Birthday "E20+10000:",see Fuchsia of power no I ass Bag 42cm Gym nobody Shopping won't mother Tote litres see off I 10 take HippoWarehouse who I see pride x38cm bad crap Beach a Uw5ZqqnxC$INCREMENTPrint4u Shopping Born For Birthday Tote 30th Bag 1998 In Natural Life (y,10000)Print4u For Tote Life Bag Birthday Natural 1998 30th Born In Shopping ,!
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 !,Tote 1998 Shopping Bag Birthday Born Natural Life In For 30th Print4u $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLIn Print4u Shopping 1998 Natural Birthday Life Bag 30th Born Tote For xyz
; null string initializes to 0
WRITE !,$INCREMENT(Born 1998 Print4u Birthday For Tote Life Shopping In Natural Bag 30th xyz1998 Shopping Natural Print4u Born 30th For Life Bag Birthday Tote In ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTDeluxe HP Slate New 500 for compartment the Bag Tablet Carry and Pink Black Hot Case Twin RYqTB(xyz,"3A4")
For Birthday Life Print4u Natural In Shopping Tote Born 30th Bag 1998 ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)