Flow control functions

Process flow control functions are the functions that execute the decision-making and resultant logic branches in executable code. IF-THEN-ELSE, as discussed in Chapter 6, Introduction to AL, is also a member of this class of functions. Here, we will discuss the following:

• REPEAT-UNTIL
• WHILE-DO
• FOR-TO and FOR-DOWNTO
• CASE-ELSE
• WITH-DO
• QUIT, BREAK, EXIT, and SKIP