Re: Finding the version
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- Subject: Re: Finding the version
- From: Edgar Toernig <froese@...>
- Date: 2001年8月11日 17:14:27 +0200
Reuben Thomas wrote:
>
> Is there a way of finding the version of Lua one is running? The obvious way
> to overcome the bug (if that's what it is) in tinsert that I just pointed
> out is to write a wrapper:
>[...]
> i.e. I could surround it with
>
> if _VERSION < 4.1 then
> ...
> end
lua -e "print(_VERSION)"
--> Lua 4.0
So _VERSION is already there; it's set in the baselib.
> BTW, the tinsert bug appears to be present in 4.1alpha too.
IMHO the bug is the calling convetion on tinsert itself. The
statement
tinsert(x, foo())
does completely different this when foo returns 1 or 2 results.
I think, these collection of functions would be better:
tinsertat(table, pos, elements...) -- insert at pos
tinsert(table, elements...) -- insert at 1
tappend(table, elements...) -- append at -1
Ciao, ET.