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Diffstat (limited to 'lib/gltests/test-malloca.c')
-rw-r--r-- | lib/gltests/test-malloca.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/lib/gltests/test-malloca.c b/lib/gltests/test-malloca.c new file mode 100644 index 0000000..92c86f2 --- /dev/null +++ b/lib/gltests/test-malloca.c @@ -0,0 +1,62 @@ +/* Test of safe automatic memory allocation. + Copyright (C) 2005, 2007, 2009-2011 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/>. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2005. */ + +#include <config.h> + +#include "malloca.h" + +#include <stdlib.h> + +static void +do_allocation (int n) +{ + void *ptr = malloca (n); + freea (ptr); + safe_alloca (n); +} + +void (*func) (int) = do_allocation; + +int +main () +{ + int i; + + /* This slows down malloc a lot. */ + unsetenv ("MALLOC_PERTURB_"); + + /* Repeat a lot of times, to make sure there's no memory leak. */ + for (i = 0; i < 50000; i++) + { + /* Try various values. + n = 0 gave a crash on Alpha with gcc-2.5.8. + Some versions of MacOS 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); + } + + return 0; +} |