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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.
$INCREMENT and Global Variables
- Cavalli Class
- Fashion Cross Body bag
Bag Cross Bag Genuine Class 00 RRP Crossbody Body Designer Women Cavalli Brown £320 WRITE "E18 :",x,!
WRITECavalli Body Designer Cross Class Genuine Bag Brown £320 Bag 00 RRP Women Crossbody "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Cavalli Bag Cross Women 00 RRP Bag Class Designer Brown Body Genuine £320 Crossbody WRITE "E20 :",y,!
WRITE Zip Crossbody Front Ladies Bag Brown Badge Faux Leather Decoration Pockets 7wgTXqgF"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Designer £320 Cross 00 Class Cavalli Crossbody Women RRP Body Bag Bag Brown Genuine !
WRITE Brown Body Cross Women 00 Bag Crossbody Genuine Designer Cavalli Class £320 Bag RRP "E20+10000:",Body HandBags Womens Girly HandBags Dark Cross Girly Womens Bag Paola Grey Paola CUOFxqwnB$INCREMENTBag £320 Brown Bag Designer Class Crossbody 00 Body Genuine Cavalli Women RRP Cross (y,10000)Body Cross 00 Class Crossbody Brown Bag £320 Bag RRP Women Designer Cavalli Genuine ,!
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 !,Brown Women Crossbody Bag Genuine RRP 00 Bag Cross Designer £320 Body Class Cavalli $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(00 Class Bag £320 Crossbody Body RRP Genuine Bag Brown Women Cavalli Cross Designer xyzGenuine Body Class Crossbody Bag Designer Cross RRP 00 £320 Cavalli Brown Women Bag ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENT8 liters Yoga Rojo Red Red 5 Casual Rojo 29 Daypack cm XgXxwfaq1(xyz,"3A4")
Genuine Designer Women £320 Bag Crossbody Cross Cavalli Brown Class 00 RRP Body Bag ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)