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annotate tests/test-malloca.c @ 40196:e63f5d3edab5

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relocatable-prog: Update documentation. * doc/relocatable-maint.texi (Supporting Relocation): Update to match the recent changes.
author Bruno Haible <bruno@clisp.org>
date Sun, 24 Feb 2019 01:49:15 +0100
parents b06060465f09
children
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1 /* Test of safe automatic memory allocation.
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2 Copyright (C) 2005, 2007, 2009-2019 Free Software Foundation, Inc.
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3
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4 This program is free software: you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 3 of the License, or
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7 (at your option) any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program. If not, see <https://www.gnu.org/licenses/>. */
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16
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17 /* Written by Bruno Haible <bruno@clisp.org>, 2005. */
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18
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19 #include <config.h>
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20
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21 #include "malloca.h"
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22
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23 #include <stdlib.h>
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24
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25 static void
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26 do_allocation (int n)
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27 {
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28 void *ptr = malloca (n);
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29 freea (ptr);
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30 safe_alloca (n);
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31 }
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32
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33 void (*func) (int) = do_allocation;
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34
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35 int
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36 main ()
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37 {
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38 int i;
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39
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40 /* This slows down malloc a lot. */
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41 unsetenv ("MALLOC_PERTURB_");
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42
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43 /* Repeat a lot of times, to make sure there's no memory leak. */
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44 for (i = 0; i < 50000; i++)
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45 {
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46 /* Try various values.
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47 n = 0 gave a crash on Alpha with gcc-2.5.8.
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48 Some versions of Mac OS X have a stack size limit of 512 KB. */
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49 func (34);
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50 func (134);
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51 func (399);
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52 func (510823);
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53 func (129321);
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54 func (0);
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55 func (4070);
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56 func (4095);
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57 func (1);
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58 func (16582);
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59 }
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60
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61 return 0;
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62 }