Re: Lua 5.3 Proposal: Bring back pack()/unpack() for storing

["Thiago L." <fakedme@...>]

On 14/04/2014 13:54, John Hind wrote:
> > Date: Mon, 14 Apr 2014 08:46:54 -0700
> > Subject: Re: Lua 5.3 Proposal: Bring back pack()/unpack() for storing
> > > Wouldn't that be like...
> > > n = select('#',...)
> > > v = (select(2,...))
> > Yes, that would be the current way you do that.  I think he's saying
> > he wishes for sugar. :-)
> Not at all! Implemented properly, this should be much more efficient,
> particularly if there are a lot of varargs and you are processing them all
> in a loop with repeated select(n, ...). Also it should be more efficient
> than the other common idiom of using the vararg operator in a table
> constructor.
local n,v1,v2,v3,v4,v5,v6,v7,v8,[repeat],vn = select('#',...),...; etc?
Hmm actually now I see how #... and ...[x] would be useful... otherwise 
you have to use debug.* which's not portable... (also I wonder, can you 
do select(...) with debug, and is it faster?)