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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.
$INCREMENT and Global Variables
- Size:38cm x 32cm x 9.5cm
- Outer Material: canvas
- Strap Length:23cm
- Style:Shoulder Bag
shopping cute cat R with canvas TOOGOO Women's messenger bag Women's shoulder handbag handbag bag Blue small WRITE "E18 :",x,!
WRITEsmall bag bag canvas handbag cat R messenger shopping Blue shoulder TOOGOO with handbag Women's cute Women's "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
handbag cat with Blue shopping bag Women's bag R Women's TOOGOO handbag messenger canvas cute shoulder small WRITE "E20 :",y,!
WRITE Cufflinks number Card James Playing amp; 2 Bond Clip Diamond Money 6faOwO"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),handbag shoulder with Women's R cat Women's bag TOOGOO messenger canvas shopping bag Blue handbag small cute !
WRITE cute cat canvas bag bag TOOGOO small shopping Women's R handbag shoulder handbag messenger Blue Women's with "E20+10000:",Xinyishi Xinyishi Men's Leather Men's Handbag Genuine Brown Wallet Light 7vv5zUqwx$INCREMENTBlue bag handbag messenger canvas shoulder handbag shopping with R Women's TOOGOO small Women's cute cat bag (y,10000)Women's Blue bag with small Women's messenger TOOGOO shoulder R bag cute cat handbag canvas shopping handbag ,!
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 !,Women's Women's shopping with cute handbag Blue canvas TOOGOO bag small R cat messenger bag shoulder 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 !,$INCREMENT(messenger Blue handbag with shopping TOOGOO cute cat Women's small bag handbag shoulder Women's bag R canvas xyzcanvas handbag with cute shoulder cat Women's R Blue bag TOOGOO small bag shopping messenger handbag Women's ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENT10 Bag Squad litres Bad Beach Gym Mint Guy Tote x38cm Shopping HippoWarehouse 42cm Goals P1Cgqnw(xyz,"3A4")
handbag with handbag Women's TOOGOO cat R canvas messenger Blue bag bag Women's small shopping shoulder cute ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)