Re: Weird numeric for loop counter variable behavior
- From: Kaj Eijlers <bizziboi@xxxxxxxxx>
- To: luajit@xxxxxxxxxxxxx
- Date: Thu, 6 Mar 2014 23:49:20 -0800
On Thu, Mar 6, 2014 at 11:26 PM, Cheyi Lin <cheyi.lin@xxxxxxxxx> wrote:
> Thanks for the replies,
>
> Sorry about lack of related context, here it is, foo.lua and main.lua.
> -- end of foo.lua
>
> -- [ main.lua ]
>
> local Foo = require("foo")
> local N = 4
>
> foo = Foo:new()
> bar =
> function (foo, i)
> -- do something irrelevant
> end
>
> foo:push_handler(
> function ()
> for i = 1, N do -- // PROBLEM HERE //
> print(i)
> bar(foo, i)
> end
> end)
>
> foo:register_event("my_event",
> function ()
> local h = foo:pop_handler()
> if h then h() end
> end)
>
> foo:trigger_event("my_event")
>
> -- end of main.lua
>
>
My first question would be, is it indeed guaranteed that bar() does
something irrelevant? It could be assigning to a local variable N while
forgetting to declare it - and give the issue you see?
Kaj
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