each

static VALUE
enumerator_each(VALUE obj)
{
    struct enumerator *e;
    int argc = 0;
    VALUE *argv = 0;

    if (!rb_block_given_p()) return obj;
    e = enumerator_ptr(obj);
    if (e->args) {
        argc = RARRAY_LEN(e->args);
        argv = RARRAY_PTR(e->args);
    }
    return rb_block_call(e->obj, e->meth, argc, argv,
                         enumerator_each_i, (VALUE)e);
}