From: Sam Roberts <sroberts@...>
Date: 2005-05-20T00:16:08+09:00
Subject: Re: howto make something like Errno::##, for my C ext, or do I need to?

Wrote Charles Mills <cmills@freeshell.org>, on Thu, May 19, 2005 at 07:30:13AM +0900:
> Sam Roberts wrote:
> > Looks like it will work fine, but is this really recommended?
> 
> It is fine.  You also need to create your error class:
> class MyErr < StandardError;  end # or in C:
> eMyError = rb_define_class("MyError", rb_eStandardError);
> 
> Then you can define an accessor in Ruby or in C:
> attr_reader :eno
> rb_define_attr(eMyError, "eno", 1, 0);
> 
> I wouldn't worry about writing an init function if your only going to
> be raising these errors from C.

Worked like a charm, thanks a bunch.

Sam

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