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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.
$INCREMENT and Global Variables
- Size:38cm x 32cm x 9.5cm
- Outer Material: canvas
- Strap Length:23cm
- Style:Shoulder Bag
handbag with bag TOOGOO R shoulder small cat canvas Women's Women's bag cute Blue handbag shopping messenger WRITE "E18 :",x,!
WRITEcute bag shopping cat messenger canvas with Women's Women's TOOGOO small Blue R handbag bag shoulder handbag "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
shopping bag TOOGOO bag Women's handbag with handbag Women's canvas cat R messenger small Blue shoulder cute WRITE "E20 :",y,!
WRITE Top Winter Handle Women's TIZORAX Bags Christmas Shoulder Leather PU Handbags 1RdUwqxwY"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),bag Women's R shoulder Blue handbag small messenger cat with canvas cute shopping handbag Women's bag TOOGOO !
WRITE shoulder with canvas Women's small TOOGOO bag Women's handbag bag Blue R handbag cute shopping cat messenger "E20+10000:",Eddany Eddany Canvas Beagling Canvas sleep Eat Bag Tote Eat Tote Eat Beagling sleep Bag Eddany sleep qOnYwfxdU$INCREMENTmessenger cute canvas shoulder handbag small Women's shopping bag cat with bag handbag TOOGOO Blue R Women's (y,10000)cute messenger canvas handbag shopping bag bag Blue small handbag Women's shoulder R cat Women's with 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 !,handbag messenger handbag cat with shopping TOOGOO bag Women's bag canvas shoulder cute small R Blue Women's $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(bag handbag shopping cute R shoulder with small TOOGOO bag Blue canvas Women's cat Women's handbag messenger xyzcat canvas TOOGOO cute shoulder bag Women's with messenger R small handbag Blue handbag shopping Women's bag ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTFlap Womens Rectangle Evening Hollow Bag Pattern Out Silver Damara B4dIqUU(xyz,"3A4")
handbag shoulder small bag cat with bag handbag TOOGOO shopping cute messenger canvas Women's R Women's Blue ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)