From: Bryan Richardson <btrichardson@...>
Date: 2008-05-05T12:13:49+09:00
Subject: Need more help with Ruby and C

Hello all,

So I have something like the following in my C file:

static VALUE rb_cBar;

static VALUE foo_new() {
  VALUE new_foo;
  ...
  return new_foo;
}

static VALUE execute(VALUE foos) {
  VALUE foo = rb_ary_entry(foos, 0);
  printf("Foo Value: %i\n", rb_iv_get(foo, "@value");
}

void Init_bar() {
  rb_cBar = rb_define_class("Bar", rb_cObject);
  rb_define_method(rb_cBar, "new_foo", foo_new, 0);
  rb_define_method(rb_cBar, "execute", execute, 1);
}

and in my Ruby file I do the following:

require 'bar'

b = Bar.new
a = Array.new
a << b.new_foo
b.execute(a)

My question is with the execute method.  It outputs 0.00 when it should
output 1.01 (there's a foo_init method called that I didn't include here
that sets the value variable of the foo struct to 1.01).  I assume this
doesn't work because I'm passing the execute method an array created in
Ruby code and not an array created using the C functions.  Is there some
way I can do it the way I'm trying to above?

--
Thanks!
Bryan
-- 
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