LCOV - code coverage report
Current view: top level - gltests - test-malloca.c (source / functions) Hit Total Coverage
Test: GNU Libidn Lines: 19 19 100.0 %
Date: 2013-07-10 Functions: 2 2 100.0 %
Legend: Lines: hit not hit | Branches: + taken - not taken # not executed Branches: 6 6 100.0 %

           Branch data     Line data    Source code
       1                 :            : /* Test of safe automatic memory allocation.
       2                 :            :    Copyright (C) 2005, 2007, 2009-2013 Free Software Foundation, Inc.
       3                 :            : 
       4                 :            :    This program is free software: you can redistribute it and/or modify
       5                 :            :    it under the terms of the GNU General Public License as published by
       6                 :            :    the Free Software Foundation; either version 3 of the License, or
       7                 :            :    (at your option) any later version.
       8                 :            : 
       9                 :            :    This program is distributed in the hope that it will be useful,
      10                 :            :    but WITHOUT ANY WARRANTY; without even the implied warranty of
      11                 :            :    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      12                 :            :    GNU General Public License for more details.
      13                 :            : 
      14                 :            :    You should have received a copy of the GNU General Public License
      15                 :            :    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
      16                 :            : 
      17                 :            : /* Written by Bruno Haible <bruno@clisp.org>, 2005.  */
      18                 :            : 
      19                 :            : #include <config.h>
      20                 :            : 
      21                 :            : #include "malloca.h"
      22                 :            : 
      23                 :            : #include <stdlib.h>
      24                 :            : 
      25                 :            : static void
      26                 :     500000 : do_allocation (int n)
      27                 :            : {
      28         [ +  + ]:     500000 :   void *ptr = malloca (n);
      29                 :     500000 :   freea (ptr);
      30         [ +  + ]:     500000 :   safe_alloca (n);
      31                 :     500000 : }
      32                 :            : 
      33                 :            : void (*func) (int) = do_allocation;
      34                 :            : 
      35                 :            : int
      36                 :          1 : main ()
      37                 :            : {
      38                 :            :   int i;
      39                 :            : 
      40                 :            :   /* This slows down malloc a lot.  */
      41                 :          1 :   unsetenv ("MALLOC_PERTURB_");
      42                 :            : 
      43                 :            :   /* Repeat a lot of times, to make sure there's no memory leak.  */
      44         [ +  + ]:      50001 :   for (i = 0; i < 50000; i++)
      45                 :            :     {
      46                 :            :       /* Try various values.
      47                 :            :          n = 0 gave a crash on Alpha with gcc-2.5.8.
      48                 :            :          Some versions of Mac OS X have a stack size limit of 512 KB.  */
      49                 :      50000 :       func (34);
      50                 :      50000 :       func (134);
      51                 :      50000 :       func (399);
      52                 :      50000 :       func (510823);
      53                 :      50000 :       func (129321);
      54                 :      50000 :       func (0);
      55                 :      50000 :       func (4070);
      56                 :      50000 :       func (4095);
      57                 :      50000 :       func (1);
      58                 :      50000 :       func (16582);
      59                 :            :     }
      60                 :            : 
      61                 :          1 :   return 0;
      62                 :            : }

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