Re: Lua life after integers

[Andrew Starks <andrew.starks@...>]

On Wed, Dec 10, 2014 at 1:55 PM, Tim Hill <drtimhill@gmail.com> wrote:
> As has been noted before, this does not have the same behavior as ipairs()
> if the table is not a valid sequence. (Earlier betas of 5.3 did have this
> behavior, but it has been reverted to stop the iteration at the first nil
> value, which is not necessarily at #t+1 for non-sequences.)

I'm not quite following you.

Are you saying that if __len is not defined, 5.3 will always stop at
the first `nil` value, regardless of `#t`'s value? And to read into
that, if __len *is* defined, it will respect the length?

I'm still on an alpha and I think that my version has the now reverted
behavior, am I correct?

```
-- Lua 5.3 alpha 3
local t = {'foo', 'bar', 'baz', 'doomed', 'test'}
t[4] = nil
print('length of t', #t)
-->length of t 5
for i = 1, #t do
print("value is", t[i])
end

--[[-->
value is foo
value is bar
value is baz
value is nil
value is test
--]]

t[#t + 1] = 'last'
print('length of t', #t)
-->length of t 3
for i = 1, #t do
print("value is", t[i])
end
--[[
value is foo
value is bar
value is baz
--]]
```

-Andrew