Mercurial > gnulib
view tests/test-malloca.c @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
line wrap: on
line source
/* Test of safe automatic memory allocation. Copyright (C) 2005, 2007, 2009-2019 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>, 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 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); } return 0; }