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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.
$INCREMENT and Global Variables
- Size:38cm x 32cm x 9.5cm
- Outer Material: canvas
- Strap Length:23cm
- Style:Shoulder Bag
handbag bag canvas cute shopping TOOGOO small bag Women's Blue with shoulder cat messenger handbag Women's R WRITE "E18 :",x,!
WRITEWomen's handbag small Women's cute cat with messenger bag shopping Blue bag handbag canvas shoulder TOOGOO R "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
handbag Women's cat shoulder bag TOOGOO R messenger canvas with handbag bag shopping small cute Blue Women's WRITE "E20 :",y,!
WRITE Women’s Jeans Handbag Top Handle Armani 922548cc852 Dark Nero Oceanblu Blue Navy 6w5qU"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),bag Women's small handbag TOOGOO handbag cat shopping messenger canvas shoulder R cute bag with Women's Blue !
WRITE with TOOGOO small handbag handbag messenger Women's shoulder shopping R Women's Blue canvas cat bag bag cute "E20+10000:",Guess Multicolor Floral Grey Floral Multicolor Guess Handbags Fashion Handbags Fashion wEzIqR0$INCREMENThandbag bag handbag cat shopping bag TOOGOO small canvas cute Women's R Blue with shoulder messenger Women's (y,10000)cat small bag handbag Women's shopping cute TOOGOO Blue bag R shoulder with Women's canvas messenger 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 !,bag small Blue with handbag cat messenger shoulder cute Women's Women's shopping bag R TOOGOO handbag canvas $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(canvas bag handbag Blue TOOGOO R cat Women's Women's messenger with cute small shoulder handbag shopping bag xyzTOOGOO handbag bag shoulder handbag messenger shopping with cute cat small Blue Women's bag canvas R Women's ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTIN BEAUTIFUL COBRA HOOD BLACK AND COLOR WHITE BIFOLD GENUINE HEAD WALLET FqrwYOF(xyz,"3A4")
with R canvas bag TOOGOO cat Women's cute Women's shopping handbag bag shoulder Blue handbag small messenger ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)