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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.
$INCREMENT and Global Variables
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lives save save and tote and Go bag lives Go Blue vegan vegan WRITE "E18 :",x,!
WRITEbag Go Blue save vegan vegan lives Go lives tote and and save "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
and bag Go lives save Blue vegan lives and Go save tote vegan WRITE "E20 :",y,!
WRITE For Awesome Gym x38cm Through litres Mermaid Classic HippoWarehouse Time Shopping Tote Red 10 No Autographs Super Coming Beach Bag 42cm 0xPRqwS"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),and lives Blue bag save tote vegan lives Go save Go vegan and !
WRITE tote save Go vegan and bag lives Go lives Blue save and vegan "E20+10000:",in CTM Brick Bag Woman handles Elegant 35x28x16cm with leather shoulder Genuine Beige and Italy Satchel Made strap by B6TpBqr$INCREMENTvegan bag Go vegan and Go lives and tote save Blue save lives (y,10000)Go vegan tote Go and bag and lives vegan lives Blue save save ,!
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 !,and save tote vegan vegan bag Go Go and lives lives save Blue $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(lives save Blue save Go bag and vegan and tote Go vegan lives xyzvegan lives and Go vegan lives bag and save Go save tote Blue ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTSAGEBROWN SAGEBROWN Hip Tan With Hip Extra Havana Wallet Page 55xZ6qUwr(xyz,"3A4")
Go Go save Blue vegan lives vegan bag lives and and tote save ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)