gcc/testsuite/c-c++-common/analyzer/leak-pr109059-2.c

   1 /* Reduced from haproxy-2.7.1's cfgparse.c.  */
   2
   3 typedef __SIZE_TYPE__ size_t;
   4
   5 extern void*
   6 calloc(size_t __nmemb, size_t __size)
   7   __attribute__((__nothrow__, __leaf__))
   8   __attribute__((__malloc__)) __attribute__((__alloc_size__(1, 2)));
   9
  10 struct list
  11 {
  12   struct list* n;
  13   struct list* p;
  14 };
  15
  16 struct cfg_postparser
  17 {
  18   struct list list;
  19   char* name;
  20 };
  21
  22 extern struct list postparsers;
  23
  24 int
  25 test_1 (char* name)
  26 {
  27   struct cfg_postparser* cp;
  28
  29   cp = (struct cfg_postparser*) calloc(1, sizeof(*cp));
  30   if (!cp) {
  31     /* [...snip...] */
  32     return 0;
  33   }
  34   cp->name = name;
  35
  36   (&cp->list)->p = (&postparsers)->p;
  37   (&postparsers)->p = (&cp->list);
  38   (&cp->list)->p->n = (&postparsers)->p;
  39   (&cp->list)->n = (&postparsers);
  40
  41   return 1; /* { dg-bogus "leak of 'cp'" } */
  42 }