Re: unpack, pcall, nil

[Shaun McVey <shaun.mcvey@...>]

You probably want to drop the unpack:

function doit(...)
  local status, err = pcall(...)
 -- do something with status and err
end

On Mon, Sep 21, 2009 at 2:37 AM, Luiz Henrique de Figueiredo
<lhf@tecgraf.puc-rio.br> wrote:
>> function doit()
>>   local status, err = pcall(unpack(arg))
>>   -- do something with status and err
>> end
>>
>> and
>>
>> doit(x, arg1, arg2, ...)
>>
>> Now the problem is arg1, arg2 etc can genuinely be nil, and unpack stops at nil. Is there any way I can get unpack to get all the entries in the table, whether or not they are nil? Thanks,
>
> use "..." instead of arg:
>
> function doit(...)
>  local status, err = pcall(unpack(...))
>  -- do something with status and err
> end
>