| -- Copyright 2025-2026 Free Software Foundation, Inc. |
| -- |
| -- This program is free software; you can redistribute it and/or modify |
| -- it under the terms of the GNU General Public License as published by |
| -- the Free Software Foundation; either version 3 of the License, or |
| -- (at your option) any later version. |
| -- |
| -- This program is distributed in the hope that it will be useful, |
| -- but WITHOUT ANY WARRANTY; without even the implied warranty of |
| -- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| -- GNU General Public License for more details. |
| -- |
| -- You should have received a copy of the GNU General Public License |
| -- along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| package Pack is |
| -- With GCC, this makes a directly self-referential pointer type. |
| type Direct; |
| subtype Sub is Direct; |
| type Direct is access Sub; |
| |
| -- With GCC, this makes two mutually recursive pointer types. |
| type Second; |
| type First is access Second; |
| type Second is access First; |
| end Pack; |
