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- Subject: Re: The new (5.0) for syntax
- From: Roberto Ierusalimschy <roberto@...>
- Date: Thu, 13 Jun 2002 11:45:37 -0300
> You say it must be at least two expressions, but in your example, lines()
> returns only a function, no state.
Like in a multiple assignment, nils are provided when there are not
> > Assert returns its argument (if it is not false); in the example this is
> A point I didn't saw in Lua 4.0 manual (the given pseudo-code don't return
This is new in 5.0.
> Likewise, I cannot see what closefile() (or now f:close()) returns.
>From the manual:
Unless otherwise stated, all I/O functions return nil on failure and
some value different from nil on success.