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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.
$INCREMENT and Global Variables
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WRITEBody Holiday Faux Small Leather Cross Handbags Across Women Shoulder Tone LeahWard® Ladies Bag Apricot Nice School Body Cross College Bag Tote For Two 901 Work "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Wallet Skull Cow Custom Trifold Leather FFA Texas Custom Texas wqx8XgB"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),School 901 Tote Work Two Apricot Women Cross Handbags Tone Ladies Nice College LeahWard® Across Cross Small Faux Bag Holiday Body Bag Leather For Shoulder Body !
WRITE Ladies Handbags Apricot Faux Work Nice Cross LeahWard® Women College Small Shoulder Two Holiday Bag School Bag Body Across Tone For Body Leather Tote 901 Cross "E20+10000:",Shoulder Q0748 Women Pockets Dissa Bag Handbags Soft Leather Grey Multiple nvYUffx7wq$INCREMENTFaux College Ladies LeahWard® School Shoulder Cross Cross Handbags Work Across Apricot Holiday Nice Tote Small Leather For Body Tone Two Bag Bag Body Women 901 (y,10000)Tote Tone Nice Body Bag Across School For Women College Work Ladies Shoulder Holiday Cross Apricot Bag Leather Faux Two LeahWard® Small Cross Body 901 Handbags ,!
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 !,Shoulder Tone Handbags Leather Nice Women Tote Small Apricot School College Cross Body Bag For Cross Holiday Across Body LeahWard® Work Two Bag Ladies Faux 901 $INCREMENT(xyz,0) ; still zero
WRITE !,$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(Small Tone School Apricot Work LeahWard® College Body Holiday Body Nice Leather Bag For Bag Across Faux Ladies Women Handbags 901 Shoulder Two Cross Tote Cross xyzFor Work Cross Leather Bag Body Tone Women Cross Ladies LeahWard® Shoulder Body Nice Holiday Bag Two Apricot Small Tote Across College 901 Handbags Faux School ,2)
; increments by 2
; null string increments by 0 (xyz=2)
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; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)