rb_fiddle_ptr_s_to_ptr 690 ext/fiddle/pointer.c rb_define_singleton_method(rb_cPointer, "to_ptr", rb_fiddle_ptr_s_to_ptr, 1); rb_fiddle_ptr_s_to_ptr 691 ext/fiddle/pointer.c rb_define_singleton_method(rb_cPointer, "[]", rb_fiddle_ptr_s_to_ptr, 1);