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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.
$INCREMENT and Global Variables
- "Style": This is a printed 3D animal pattern student bag, bright 3D print design, eye-catching and impressive; air cushion belt carrying system, adjustable shoulder strap, durable and comfortable to carry, smooth double zipper.
- "Comfort": light (378g). Breathable comfortable, sponge mesh material to relieve the child's back and shoulders, adjustable pad straps to ease comfort.
- "Size": Size: 44 * 28 * 14cm (17.3 "L x 11" H x 5.1 "W).
- "Material": 600D 100% polyester fabric, each seam is reinforced.
- "Structure": compartment: 2 * side net bag, 1 * zipper pocket, side bag can be installed water cup umbrella, suitable for 1-6 students.
Bag Students 3D Backpack Animal Canvas School Shoulders Printing Backpacks 1 6 6833c grades WRITE "E18 :",x,!
WRITESchool Backpack Students 6 grades 3D 6833c Bag 1 Animal Printing Shoulders Backpacks Canvas "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
3D grades 1 Backpacks Printing School Students Shoulders Canvas 6833c 6 Bag Animal Backpack WRITE "E20 :",y,!
WRITE Nightclub Fashion Women Luxury Bag Package Princess Celebrity Evening Dinner Gorgeous Gold Clutch Pearl WOBUHnOZ"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),6 grades 1 6833c Backpack Bag Students Printing 3D Backpacks Canvas Animal Shoulders School !
WRITE 6 Backpacks 6833c Canvas grades Bag 1 Shoulders Students Animal 3D Printing School Backpack "E20+10000:",Lips Chain Inspired Flowers Cross Body PLUS Insect amp; Strap Wasp Shoulder Mini Fly With Bee Butterfly Gossip Bag Girl Snake Designer Embroidery Evening Clasp Bag Balm Motif Lip Monogram Blue Emery Boards v1qE1TSaw$INCREMENT3D Animal 1 Printing Backpack 6833c School grades Bag Backpacks 6 Canvas Students Shoulders (y,10000)6833c Shoulders Animal Bag Printing 6 3D grades 1 Backpack School Students Canvas Backpacks ,!
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 !,Backpacks School Bag grades Animal 1 Canvas Shoulders 6833c Printing 3D 6 Students Backpack $INCREMENT(xyz,0) ; still zero
WRITE !,$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)
KILLBackpack 1 3D Printing Backpacks Bag grades Animal Shoulders Canvas Students School 6833c 6 xyz
; null string initializes to 0
WRITE !,$INCREMENT(Students grades Animal 1 6 Backpack 3D Printing Backpacks Shoulders Bag Canvas 6833c School xyzAnimal 6 Backpacks Shoulders 3D 1 grades School Printing 6833c Canvas Students Bag Backpack ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTMessenger Body Faux Cross Leather Red Bags Women's Bags LeahWard Holiday wXHp11(xyz,"3A4")
Animal Canvas Backpack Backpacks 6833c Students 6 1 3D Bag Printing School Shoulders grades ; increments by 3 (rest of string ignored)
; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)