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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.
$INCREMENT and Global Variables
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45cm Leather body PU 13cm Handbags H Bags Handbags Weave Large Cross Hobo Coffee WISHESGEM Bags Shoulder W L 35cm Light Women WRITE "E18 :",x,!
WRITEPU 35cm Large Women Bags Shoulder Hobo L H Light Weave Handbags body W Coffee 45cm Leather WISHESGEM Bags 13cm Handbags Cross "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Suede Green Cross LONI Forest in Body Bag Shoulder Handbag Clutch Faux ZqZw8xOgv"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Bags 35cm Coffee H Bags Leather W Handbags Large 13cm PU Hobo Handbags Light Cross body Shoulder 45cm WISHESGEM Women Weave L !
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WRITE "E20+1 :",$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 !,13cm Women Shoulder Weave 45cm PU Coffee Cross 35cm Large W Leather Light Bags WISHESGEM Hobo L Handbags H Bags body 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 !,$INCREMENT(Weave Light Coffee WISHESGEM Bags Hobo H Large PU Handbags body 35cm Leather 45cm Women Handbags Shoulder Cross L 13cm Bags W xyzbody Weave WISHESGEM PU Handbags 35cm L Light H Cross Large Coffee Handbags Bags W Women 45cm Hobo Bags Leather Shoulder 13cm ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTHandle Shoulder Cross Bags Hand Body Bag Pink Light Bag Women's PU Bags purple xY6pwfqSc(xyz,"3A4")
L Bags 45cm 35cm H Women Weave Leather Shoulder 13cm Cross Light W body Large WISHESGEM Hobo Coffee PU Bags Handbags Handbags ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)