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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.
$INCREMENT and Global Variables
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vegan save save and Blue Go bag vegan Go tote and lives lives WRITE "E18 :",x,!
WRITEsave tote bag lives Go Go Blue and save and vegan lives vegan "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Go lives lives and Blue save vegan and vegan bag tote save Go WRITE "E20 :",y,!
WRITE Pattern for Advocator Stylish Canvas Print Beach Girls Shopping Boys Tote Bags Casual Travel Handbag 13 Women Color w710wqUB"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),save Blue bag Go save tote Go vegan lives vegan and lives and !
WRITE and and Blue save vegan bag Go tote lives save lives vegan Go "E20+10000:",Wallet Black ID Holder Men For Leather Save Windows Vintage Genuine Coin Retro In DuDu Closure Cards qOfxZw5f$INCREMENTGo vegan vegan bag tote save save and Blue lives and lives Go (y,10000)vegan and Blue tote Go vegan Go lives save save lives and bag ,!
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 vegan lives and and Blue Go Go tote lives vegan save save $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(tote lives Go and bag and Blue vegan Go save vegan lives save xyzbag tote Blue and lives vegan save and lives Go save Go vegan ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTWomen’s Glossy Piero Brown Piero Mogano Guidi Pg Guidi Discovery Tote CqwctSP(xyz,"3A4")
lives lives Go and save save Go vegan Blue vegan tote and bag ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)