| /* Test of once-only execution in multithreaded situations. |
| Copyright (C) 2018-2020 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 <https://www.gnu.org/licenses/>. */ |
| |
| /* Written by Bruno Haible <bruno@clisp.org>, 2018. */ |
| |
| #include <config.h> |
| |
| #include "glthread/lock.h" |
| |
| #include "macros.h" |
| |
| gl_once_define(static, a_once) |
| |
| static int a; |
| |
| static void |
| a_init (void) |
| { |
| a = 42; |
| } |
| |
| int |
| main () |
| { |
| gl_once (a_once, a_init); |
| |
| ASSERT (a == 42); |
| |
| return 0; |
| } |