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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.
$INCREMENT and Global Variables
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Shoulder 45cm Hobo Women 13cm Leather body Handbags W PU Bags Bags Cross Light 35cm Large WISHESGEM Weave Handbags H Coffee L WRITE "E18 :",x,!
WRITEHandbags Large Weave WISHESGEM Bags Cross Light 35cm Women Bags Shoulder body Leather Coffee PU W 13cm H Hobo L Handbags 45cm "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Butterflies Made Tote Heart Of Bag Tiny Heart Made XzxyqwwaPH"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),body W Bags Weave H Bags Coffee Light Shoulder Handbags 35cm Women L Hobo 45cm Cross Handbags 13cm Leather PU Large WISHESGEM !
WRITE Handbags Bags H body Bags Light Handbags L 13cm Weave WISHESGEM 45cm Shoulder PU Large Coffee Cross Leather Women W Hobo 35cm "E20+10000:",PU Shoulder Leather Handbag Black Bag Embroidery Domybest Bag Lovers Shopping Women w7q5WCT$INCREMENTH 13cm 35cm Large Handbags PU W Bags Bags Shoulder Light WISHESGEM body 45cm Handbags L Cross Women Leather Hobo Coffee Weave (y,10000)Leather Women H WISHESGEM L Hobo 45cm Bags 35cm Weave body PU Light Large Handbags 13cm Bags Cross Shoulder Handbags Coffee W ,!
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 !,Coffee Bags H PU 45cm Bags Hobo W 35cm Large Cross L Handbags WISHESGEM Women Shoulder body Light Leather 13cm Weave Handbags $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(body Large 45cm W Bags H 13cm Bags Handbags 35cm PU L Weave Shoulder Handbags Leather Light Coffee WISHESGEM Women Hobo Cross xyzH Handbags WISHESGEM body 35cm 45cm 13cm Coffee Bags Hobo PU Bags Large W Light Women Handbags Shoulder Weave L Cross Leather ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENT1990 Cotton retro design Bag in ideal 100 present Made qTOg7n(xyz,"3A4")
35cm body 13cm Handbags PU Coffee H Light Handbags W Hobo Leather Bags WISHESGEM Bags Shoulder Cross L 45cm Weave Large Women ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)