I'm trying to translate a Python example into Forth and I have a question about the code structure. Specifically, there's an ELSE statement on line 22—does it belong to the IF on line 18 or the IF on line 20? I'd appreciate any insights you can offer! Here's the link to the example I'm referencing: https://brilliant.org/wiki/prime-testing/:~:text=The%20testing%20is%20O%20(%20k,time%20as%20Fermat%20primality%20test. Thanks in advance!
2 Answers
The ELSE on line 22 actually belongs to the `for` loop. It only executes if the loop runs all the way through without hitting a `break` statement. So, it's not directly tied to one of the IF statements you mentioned.
You're right to question its purpose! The ELSE can sometimes be used with for loops to handle cases when the loop completes without interruptions. However, in this scenario, since the IF statement is meant to break the loop when certain conditions are met, you could argue that the ELSE is unnecessary. If you run it through pylint, it'll highlight that issue for you!
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