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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.
$INCREMENT and Global Variables
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Banquet Handbags Silver Luxury Purse Women's Color Bag Ladies Evening Silver Clutch KERVINFENDRIYUN Shoulder Snowflake Crossbody WRITE "E18 :",x,!
WRITECrossbody Clutch KERVINFENDRIYUN Silver Handbags Luxury Ladies Bag Evening Purse Banquet Women's Shoulder Snowflake Silver Color "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Women’s cm Bag Reversible h Calvin x Klein Tote t 18x34x29 Beige b x Mushroom Stef TqRw0x5a"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Snowflake Shoulder Color KERVINFENDRIYUN Ladies Silver Silver Clutch Banquet Luxury Bag Crossbody Women's Evening Handbags Purse !
WRITE Banquet Silver Color Silver Snowflake Ladies KERVINFENDRIYUN Purse Women's Shoulder Crossbody Bag Evening Luxury Clutch Handbags "E20+10000:",Meliya Clutch Shoulder Fashion Leather 1 Purse Bag Silver Envelope Holographic Womens Handbag Laser rw1fUTrq$INCREMENTClutch Purse Silver Handbags Banquet Women's KERVINFENDRIYUN Shoulder Crossbody Evening Ladies Snowflake Silver Luxury Color Bag (y,10000)Evening Clutch Purse KERVINFENDRIYUN Handbags Bag Women's Color Snowflake Ladies Crossbody Silver Luxury Silver Shoulder Banquet ,!
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 !,Clutch KERVINFENDRIYUN Silver Women's Purse Crossbody Silver Handbags Luxury Shoulder Ladies Snowflake Banquet Color Bag Evening $INCREMENT(xyz,0) ; still zero
WRITE !,$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(Silver Shoulder Banquet Handbags KERVINFENDRIYUN Color Women's Evening Luxury Snowflake Purse Ladies Bag Silver Clutch Crossbody xyzColor KERVINFENDRIYUN Silver Banquet Bag Shoulder Crossbody Evening Luxury Snowflake Silver Women's Handbags Purse Clutch Ladies ,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)