Re: ipairs in Lua 5.3.0-alpha

[Philipp Janda <siffiejoe@...>]

Am 15.08.2014 um 20:10 schrieb Coda Highland:
> On Fri, Aug 15, 2014 at 11:01 AM, Jan Behrens
> <jbe-lua-l@public-software-group.org> wrote:
> > And some drivers don't. It would be nice to be able to use ipairs(...)
> > here as well. What's the sense of ipairs anyway, if it behaves the same
> > as the arithmetic "for"?
> >
> > -- Jan
>
> That question is the reason ipairs() was nearly removed. Parallel
> construction is the only reason I can see for it -- making iteration
> over a sequence visually the same as iteration over any other
> well-defined collection.

... and allow passing an iterator from/to functions, and allow iteration 
of arrays with holes, and iterate queues (arrays which have elements 
appended during iteration).


> /s/ Adam

Philipp