From: Adam Shelly <adam.shelly@...>
Date: 2008-04-29T14:37:35+09:00
Subject: Re: converting strings in c extension

On Mon, Apr 28, 2008 at 10:15 PM, Niklas C. <cathor.niklas@gmail.com> wrote:
> Whow, that really gave me a hint!
>  Doing
>  ldist 'foo','bar'
>  now prints:
>
>  main
>  'foo'
>
>  So for some reason main is given as the first argument. Does ruby always
>  do that? doesn't make much sense to me...

The first argument is always 'self' - the object that the method is
being called on.  Your function definition should always have 1 more
parameter than rb_define_method specifies.
>
>  Anyway, I solved the problem by adding another (first) parameter to
>  rb_ldist, but still specifying 2 parameters down in the rb_define_method
>  call. Seems like a dirty hack but it's working, thank's a lot ;)
>
So it's not really a dirty hack - just rename your dummy to 'self' and
you are doing the right thing.

-Adam