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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.
$INCREMENT and Global Variables
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Handbags Women Shoulder Bags Tote Shoulder Bag Fashion Shopping Women's Bags Handbag Bag Leather Bag Gray Bag Clutches Women WRITE "E18 :",x,!
WRITETote Bag Bag Shoulder Shoulder Leather Clutches Shopping Gray Handbag Bag Bag Bags Fashion Women Women Women's Handbags Bags "E18+1 :",$INCREMENT(x),!
WRITE "E18+4 :",$INCREMENT(x,4),!
WRITE "E18-6 :",$INCREMENT(x,-6),!
WRITE "E18+0 :",$INCREMENT(x,0),!
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WRITE Geniune Shopping Lightweight Handbag Canvas Purse 100 Leather Women's Tote Light Decorlives and Bag Ladies Shoulder grey Eq6znUx"E20+0 :",$INCREMENT(y,0),!
WRITE "E20-10000:",$INCREMENT(y,-10000),Bags Women's Shoulder Handbags Bag Shopping Fashion Tote Bags Gray Women Women Shoulder Bag Bag Bag Clutches Leather Handbag !
WRITE Fashion Shoulder Women Bag Bag Bags Gray Clutches Handbag Shoulder Bags Women's Shopping Handbags Bag Bag Women Tote Leather "E20+10000:",Handbag Wedding Bag Party Prom Pearl Bridal Gold Ladies Shoulder Glitter Diamante Clutch Women Evening Gift Bag Tassel For Clubs Purse 6wIZvOq$INCREMENTBags Bag Bag Handbag Shoulder Shopping Women Women Women's Clutches Bag Fashion Bag Shoulder Handbags Leather Tote Gray Bags (y,10000)Handbags Clutches Bag Bag Women Shoulder Women's Shopping Women Tote Bag Gray Leather Bags Handbag Bags Bag Fashion Shoulder ,!
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 !,Women's Shoulder Bag Clutches Bags Gray Shopping Tote Fashion Bag Leather Bag Bags Shoulder Women Women Handbags Handbag Bag $INCREMENT(xyz,0) ; still zero
WRITE !,$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 !,$INCREMENT(Handbag Leather Bag Bags Handbags Shoulder Bag Tote Fashion Bag Shoulder Bags Women's Bag Women Women Clutches Shopping Gray xyzShoulder Bag Shoulder Clutches Fashion Bag Tote Women Bags Handbags Women Women's Bag Leather Gray Shopping Handbag Bags Bag ,2)
; increments by 2
; null string increments by 0 (xyz=2)
WRITE !,$INCREMENTuniversal Outdoor amp;J outdoor purpose resistant ZC with backpack men rain backpack multi women cover and D practical hiking wear backpack Twqdq51R(xyz,"3A4")
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; nonnumeric string evaluates as zero (xyz=5)
; increments by 100 (scientific notation)