Re: tables problem
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- Subject: Re: tables problem
- From: "D Burgess" <db@...>
- Date: 2004年1月26日 6:51:43 +1000
May or may not be your problem but,
from the manual -
All three control expressions are evaluated only once,
before the loop starts.
Note the once.
After the first table.remove, the second parameter of
the 'for' will be a number larger than the number of
table entries.
+++++++++++++++++++++++++++++++++
>Hi,
> I am having a problem with tables. The culprit is the following
>function:
>
>function dep:remove( _name )
> for i = 1, table.getn(self.deps), 1
> do
> if self.deps[i]["name"] == _name
> then
> table.remove(self.deps, i)
> end
> end
>end
>
>When I call this function I get the following error:
>
>lua: depends.lua:22: attempt to index field `?' (a nil value)
>stack traceback:
> depends.lua:22: in function `remove'
> depends.lua:37: in main chunk
> [C]: ?
>
>I checked and i is a valid element in that table. This function does
>seem to work when i is the last element of the table. I also tried
>typing a number in directly. When I replaced table.remove(self.deps, i)
>with table.remove(self.deps, 1) things also failed. Then I tried taking
>it out of the for loop, and everything worked.
>
>Can someone help me fix this?
>
>Mike Atamas
>aelfgar@aelfgar.com