From: "Darryl L. Pierce" <mcpierce@...>
Date: 2011-12-02T22:14:40+09:00
Subject: Native extension: arguments as a hash

I'm working on a native extension in C for Ruby 1.8.7. The method I'm
working on must have the signature:

def receive(receiver, opts = {})

so that users can call:

receiver(receiver, :timeout => 15) # :timeout is optional

But I can't find a decent example of what such a method would look like
in C. I've tried the following:

static VALUE qpid_receiver(VALUE self, VALUE* varg)
{
}

which works fine for receiving variable arguments. But what I'm not
seeing is the arguments beyond the first being pushed into a Hash.

So the question is: in a native extension, how do I tell Ruby that I
want all arguments after the first to be presented as a Hash, with a
default of an empty Hash if no arguments are present?

Thanks.

-- 
Darryl L. Pierce <mcpierce@gmail.com>
http://mcpierce.multiply.com/
"What do you care what people think, Mr. Feynman?"