Programmer's Reference Manual Intermec Fingerprint® v8.70.0 ...

FOR...TO...NEXT
Intermec Fingerprint v8.70.0/v10.0.0 Programmer´s Reference Manual
Chapter —Program Instructions
Purpose Statement for creating a loop in the program execution, where a counter is
incremented or decremented until a specified value is reached.
Syntax FOR=TO[STEP]NEXT[]
is the variable to be used as a counter.
is the initial value of the counter.
is the final value of the counter.
is the value of the increment (decrement).
Remarks This statement is always used in connection with a NEXT statement.
The counter () is given an initial value by the numeric expression
(). If no increment value is given (STEP ), the value 1 is
1 3
assumed. A negative increment value will produce a decremental loop.
Each time the statement NEXT is encountered, the loop will be executed
again until the final value, specified by (), is reached. Then the
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execution will proceed from the first line after the NEXT statement.
If the optional variable is omitted in the NEXT statement, the program
execution will loop back to the most recently encountered FOR statement.
If the NEXT statement does include a variable, the execution will loop
back to the FOR statement specified by the same variable.
FOR...NEXT loops can be nested, which means that a loop can contain
another loop, etc. However, each loop must have a unique counter designation
and the inside loop must be concluded by a NEXT statement
before the outside loop can be executed.
Examples The counter A% is incremented from 10 to 50 in steps of 20:
10 FOR A%=10 TO 50 STEP 20
20 PRINT A%
30 NEXT
RUN
10
30
50
The counter B% is decremented from 50 to 10 in steps of 20:
10 FOR A%=50 TO 10 STEP -20
20 PRINT A%
30 NEXT
RUN
50
30
10
yields:
yields: