Do loops do until Rpgle?

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Do loops do until Rpgle?

do until loop in rpgle

  1. •DOU Conditional expression – ENDDO.
  2. •DOU repeats until the condition becomes true.
  3. –Statements always execute at least once.

What does ITER DO in rpgle?

The ITER operation transfers control from within a DO or FOR group to the ENDDO or ENDFOR statement of the group. It can be used in DO, DOU, DOUxx, DOW, DOWxx, and FOR loops to transfer control immediately to a loop’s ENDDO or ENDFOR statement. It causes the next iteration of the loop to be executed immediately.

Do while loops as400?

Ü DOW (Do While) The looping condition is specified as factor2 of the DoW opcode. The looping condition is checked at the beginning before any iteration begins. If the condition is not true it doesn’t enter the loop even a single time. DOW — Do While — does the statements in the DO-group while the condition is true.

Do loops RPG 400?

The Do-EndDo loop is used when we have to iterate over a block of statements for specific number (say 10, 20 100) of times. The do loop takes arguments as below: The Starting Counter, The maximum value and the index value. We can specify any of the above values as variables.

What is the difference between Dow and Dou in as400?

DOU processes a loop UNTIL a condition is met. DOW processes a loop WHILE a condition is met. DOU will process the loop and then check if it should process again, thus it will always execute the loop once and check afterwards, even if the condition was true before the loop ever started.

What is Leavesr opcode in Rpgle?

The LEAVESR operation exits a subroutine from any point within the subroutine. Control passes to the ENDSR operation for the subroutine. LEAVESR is allowed only from within a subroutine.

How do you use a loop in Rpgle?

§ The For loop in RPGLE seems similar to a ‘FOR’ loop in any other programming languages. § The initial counter, the final counter and the increment value. The counter of the loop begins from 1 and is incremented/decremented by the step(2) till the counter becomes greater than (or less than) the max value(6).

What is the difference between Dow and Dou?