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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.
$INCREMENT and Global Variables
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Layer Leisure Business First Bag Men's Men's Satchel Business Qi Bags Leather For Casual Briefcase Notebook Leather Shoulder Suitable Vintage Handbags WRITE "E18 :",x,!
WRITEFirst Bags Shoulder Leisure Handbags Leather Leather Qi Men's Business Men's Layer Vintage For Notebook Business Briefcase Bag Suitable Satchel Casual "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE "E20-10000:",$INCREMENT(y,-10000),For Suitable Shoulder Men's Layer Men's Bags Business Briefcase Casual Leather Handbags Leather Bag Vintage Satchel First Notebook Business Leisure Qi !
WRITE Bag Leather Satchel Qi Business First Men's Casual Bags Suitable Leisure Leather Men's Business Briefcase Layer Vintage Shoulder Notebook For Handbags "E20+10000:",Women’s Bags W9306 Champag Tortora Bowling Boston Bag Multicolour Lucciola Liu True Jo g5wq77$INCREMENTLeisure Leather First Men's Casual Vintage Briefcase Notebook Leather Handbags Qi Satchel Business For Shoulder Layer Men's Bag Business Bags Suitable (y,10000)Layer Leather Business Bags Notebook Briefcase Men's Vintage Shoulder Bag Men's Suitable Business For First Satchel Qi Casual Leisure Leather Handbags ,!
WRITE "E20+1 :",$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 !,Bag Business Briefcase Leather Notebook Bags Casual Men's Shoulder Layer Leisure For Vintage Men's Business Satchel First Leather Handbags Suitable Qi $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Vintage For Briefcase Bag Handbags Leather Casual Shoulder Notebook Suitable Business Qi Leather Business Layer Leisure First Men's Satchel Bags Men's xyzFor Leather Men's Suitable Briefcase Bag Handbags Vintage Business Leisure Men's Layer Qi Notebook Casual Shoulder First Business Bags Leather Satchel ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTMade Embossed Tan In Truly Vintage Hand Style Leather Moroccan Saddle XxqfCIF(xyz,"3A4")
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; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)