| /* Test of optional automatic memory allocation. |
| Copyright (C) 2005, 2007, 2009-2020 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>, 2007. */ |
| |
| #include <config.h> |
| |
| #include <alloca.h> |
| |
| #if HAVE_ALLOCA |
| |
| static void |
| do_allocation (int n) |
| { |
| void *ptr = alloca (n); |
| (void) ptr; |
| } |
| |
| void (*func) (int) = do_allocation; |
| |
| #endif |
| |
| int |
| main () |
| { |
| #if HAVE_ALLOCA |
| int i; |
| |
| /* Repeat a lot of times, to make sure there's no memory leak. */ |
| for (i = 0; i < 100000; i++) |
| { |
| /* Try various values. |
| n = 0 gave a crash on Alpha with gcc-2.5.8. |
| Some versions of Mac OS X have a stack size limit of 512 KB. */ |
| func (34); |
| func (134); |
| func (399); |
| func (510823); |
| func (129321); |
| func (0); |
| func (4070); |
| func (4095); |
| func (1); |
| func (16582); |
| } |
| #endif |
| |
| return 0; |
| } |