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- Subject: Re: hpairs?
- From: Steve Litt <slitt@...>
- Date: Tue, 28 Dec 2010 22:57:57 -0500
On Tuesday 28 December 2010 18:05:28 Mark Hamburg wrote:
> On Dec 28, 2010, at 2:31 PM, Steve Litt wrote:
> > On Tuesday 28 December 2010 16:15:39 Mark Hamburg wrote:
> >> On Dec 28, 2010, at 11:45 AM, Richard Hundt wrote:
> >>> Is there something inherently Bad about doing this?
> >>>
> >>> for k,v in next, t, #t > 0 and #t or nil do
> >>> ...
> >>> end
> >>
> >> There is nothing in the contract for next that guarantees that it will
> >> work.
> >
> > Can somebody please explain how Mark's algorithm works? In the docs at
> > http://www.lua.org/manual/5.1/manual.html it lists the following syntax
> > for next():
>
> Not mine. Richard Hundt's. I hardly want to be credited with something I
> don't recommend.
Sorry Mark. I was so bamboozled by the syntax that my confusion spilled over
into who wrote what.
Now that I understand the syntax (thanks Doug), I agree with you this is a
risky way to do it, because there's no guarantee that the elements with
integer subscripts (or whatever you call them) will come first.
SteveT
Steve Litt
Recession Relief Package
http://www.recession-relief.US
Twitter: http://www.twitter.com/stevelitt
