FOR Statement

Executes the provided statements while incrementing or decrementing a counter variable at each iteration.

The loop may be terminated without regard to the counter by using the BREAK statement. The current iteration of the loop can be abandoned and the next iteration of the loop started by using the CONTINUE statement.

Syntax

Parameters

• variable-name: variable name
  The name of the counter variable. The variable name must begin with an at sign (@), dollar sign ($), or colon (:). The variable need not be previously declared; the FOR statement acts as a variable declaration if needed. This variable will receive an integer value that changes with each iteration of the loop.
• first-number: integer
  The value of the counter variable on the first iteration of the loop.
• last-number: integer
  The loop stops if the counter steps past this value.
• step: integer (optional)
  The number to add to the counter variable on each iteration. If first-number ≤ last-number then the default step is 1, otherwise the default step is -1.
• statement: statement
  The statements to execute on each iteration of the loop.  If more than one statement is desired, the BEGIN and END keywords must be used.
  

Example

-- Prints the numbers: 1, 2, 3, 4, 5.
FOR @i = 1 TO 5
    PRINT @i;

-- Prints the numbers: 5, 4, 3, 2, 1.
FOR @i = 5 TO 1
    PRINT @i;

-- Prints the numbers: 1, 3, 5, 9.
FOR @i = 1 TO 10 STEP 2
    PRINT @i;