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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.
$INCREMENT and Global Variables
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fold Anchor Genuine Bi Wallet Leather Men's Chevron amp; Personalized WRITE "E18 :",x,!
WRITEPersonalized Chevron Wallet Bi fold Anchor Men's Genuine Leather amp; "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
Personalized Chevron Leather Genuine amp; Men's Bi fold Anchor Wallet WRITE "E20 :",y,!
WRITE Bag 11 6 Regular Tuzech Leather Laptop Hunter Inches Messenger Satchel Laptop 8nFT0qY"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Anchor Bi amp; fold Genuine Men's Personalized Leather Chevron Wallet !
WRITE Bi amp; Leather Wallet Personalized Anchor Men's Chevron fold Genuine "E20+10000:",Business Azeeda Holder Card Swirly CH00010869 Credit Card Wallet 'December Writing' 6tqArwx6g$INCREMENTAnchor fold Men's Wallet Personalized Genuine Chevron Leather Bi amp; (y,10000)Bi Anchor amp; Chevron Genuine Leather fold Men's Personalized Wallet ,!
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 !,amp; Genuine Men's Leather Personalized fold Chevron Bi Wallet Anchor $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Men's Bi Wallet Personalized Anchor Chevron Genuine amp; Leather fold xyzPersonalized Wallet Bi Anchor Chevron fold Men's amp; Leather Genuine ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTFangYOU1314 Cross Diagonal Red Women's Bag Bucket Red Color PU Waterproof Bag Bag Shoulder 1ACUr1xqw(xyz,"3A4")
amp; Genuine Leather Bi Wallet Anchor Men's Personalized fold Chevron ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)