From: ts <decoux@...>
Date: 2002-04-19T00:59:26+09:00
Subject: Re: Confused by example in Pickaxe book

>>>>> "D" == Daniel Berger <djberg96@hotmail.com> writes:

D> First, isn't that 2 arguments instead of 1 (remembering to exclude

 Well, you are at C level if you don't give the object ruby will not know
 which method call

D> 'self', i.e. tdata, as an argument).  What is the '1' for?

 The prototype is

   rb_obj_call_init(VALUE obj, int argc, VALUE *argv)

 `1' is for the number of elements in argv

D> VALUE argv[1];
D> argv[0] = unit;

 To have a VALUE * to give it to rb_obj_call_init(), In this case it can be
 written 

   rb_obj_call_init(tdata, 1, &unit);


Guy Decoux