Re: Multiple values returned or vararg expression in numeric for loop

[Roberto Ierusalimschy <roberto@...>]

> > I get "'for' step must be a number" in both versions.
> 
> Perhaps I'm misunderstanding something.  I just noticed that Roberto's
> code actually has inc with a capitalized I in the first line and 1nc
> with the digit one instead of the capital I in the second.  If I copy
> that into the interpreter I get the error message you mention in both
> cases.  If I use Inc with a capital I in both lines then the for loop
> does the expected thing in both versions of Lua.  If the misspelled
> Inc is intentional, why wouldn't this raise an error.  Could the digit
> one followed by letters, a malformed number, be considered a legal
> token somehow?

My point was exactly that, if the code has some small error (an 'l'
instead of an 'I'), the proposed change would result in a weird behavior
without error messages.

(NOTE: The mispelled character in 'lnc' is a small-cap 'L', not the
digit one.)

-- Roberto