From: Joel VanderWerf <vjoel@...>
Date: 2008-01-24T16:19:57+09:00
Subject: Re: How to judge the type of an object which is passed as an argument from Ruby to C?

shiwei zhang wrote:
> how should I judge/decide 
> the variable vsubject is a Rat object, or a Buffalo object, or a 
> String?

If you want to include inheritance:

   rb_obj_is_kind_of(obj, some_class)

If you do not, you can use the CLASS_OF macro:

   CLASS_OF(obj) == some_class

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407