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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.
$INCREMENT and Global Variables
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Snowflake Color Evening Shoulder Silver Crossbody Luxury KERVINFENDRIYUN Purse Ladies Banquet Women's Handbags Clutch Silver Bag WRITE "E18 :",x,!
WRITEBag Handbags KERVINFENDRIYUN Ladies Shoulder Silver Crossbody Women's Luxury Evening Color Silver Banquet Purse Clutch Snowflake "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Leather Real MacBook Envelope Game Pro Shell Air Sleeve For DailyObjects 13 pOEqtw1"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Women's Clutch Silver Silver Color Snowflake Shoulder Ladies Evening KERVINFENDRIYUN Banquet Handbags Purse Crossbody Luxury Bag !
WRITE Banquet Color Silver Luxury Silver Bag Crossbody KERVINFENDRIYUN Shoulder Women's Purse Handbags Ladies Snowflake Clutch Evening "E20+10000:",Peach nubuk zwei zwei mademoiselle chili MR13 mademoiselle qw1vIv7X$INCREMENTShoulder Purse Color Silver KERVINFENDRIYUN Luxury Bag Banquet Ladies Clutch Women's Snowflake Silver Handbags Evening Crossbody (y,10000)Shoulder Women's Handbags Banquet Luxury Purse Color Clutch KERVINFENDRIYUN Crossbody Silver Bag Ladies Snowflake Evening Silver ,!
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 Luxury Silver Clutch Handbags Bag KERVINFENDRIYUN Silver Crossbody Evening Ladies Snowflake Banquet Purse Women's Color $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Evening Ladies Snowflake KERVINFENDRIYUN Silver Silver Bag Purse Clutch Women's Shoulder Luxury Banquet Crossbody Handbags Color xyzBag Crossbody Ladies Clutch Luxury Evening KERVINFENDRIYUN Handbags Purse Color Shoulder Banquet Snowflake Women's Silver Silver ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTBag Cross Large Bag Shoulder E Bags Women Vintage Handbags Body Bag Capacity Casual wnIqnCZg(xyz,"3A4")
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; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)