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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.
$INCREMENT and Global Variables
- Size:38cm x 32cm x 9.5cm
- Outer Material: canvas
- Strap Length:23cm
- Style:Shoulder Bag
Blue cute cat small bag handbag handbag messenger Women's TOOGOO shopping canvas bag shoulder Women's with R WRITE "E18 :",x,!
WRITEcute Women's TOOGOO handbag shopping bag shoulder Blue R with messenger cat Women's bag canvas handbag small "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
handbag cute canvas bag Women's TOOGOO Women's shoulder bag Blue with shopping messenger R cat small handbag WRITE "E20 :",y,!
WRITE braun 14 Cartella Bridge Cartella The The Story Bridge Uomo 06466501 Marrone zSqvxB"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),with bag messenger handbag Women's R shoulder handbag shopping Blue canvas cute cat bag Women's TOOGOO small !
WRITE cat Women's with messenger TOOGOO small bag R handbag cute shopping handbag Blue bag canvas shoulder Women's "E20+10000:",they don't go 10 Beach just x38cm Yellow Gym Tote Bag HippoWarehouse Shopping grow Gardeners to litres pot old 42cm xYqBIp$INCREMENThandbag Blue TOOGOO R Women's messenger cat with small bag bag canvas shoulder handbag shopping cute Women's (y,10000)R cute Blue handbag messenger small bag handbag bag Women's with cat shopping shoulder canvas Women's TOOGOO ,!
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 !,cat bag canvas shoulder R handbag TOOGOO with cute bag handbag Women's Blue small Women's messenger shopping $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(bag cat messenger shoulder TOOGOO canvas small handbag shopping Women's cute bag handbag Women's Blue with R xyzbag shopping TOOGOO canvas bag cat cute Blue small with Women's shoulder handbag messenger R Women's handbag ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTCard Wallet Card Azeeda Credit Holder Azeeda Business 'Buddha' CH00015340 'Buddha' CUqCwvPxfS(xyz,"3A4")
TOOGOO small R Women's Women's handbag Blue bag shopping handbag messenger with canvas cat shoulder bag cute ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)