gcc/testsuite/gcc.dg/Wstrict-overflow-27.c

   1 /* { dg-do compile } */
   2 /* { dg-require-effective-target alloca } */
   3 /* { dg-options "-O3 -Wstrict-overflow=2 -Werror" } */
   4
   5 typedef __SIZE_TYPE__ size_t;
   6 extern char *strtok_r (char *__restrict __s, const char *__restrict __delim,
   7                        char **__restrict __save_ptr)
   8   __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__nonnull__ (2, 3)));
   9 extern const unsigned short int **__ctype_b_loc (void)
  10   __attribute__ ((__nothrow__ , __leaf__)) __attribute__ ((__const__));
  11 extern int *DEBUGLEVEL_CLASS;
  12 size_t debug_num_classes = 0;
  13 void debug_parse_param(char *param);
  14 void
  15 debug_parse_levels(const char *params_str, size_t str_len)
  16 {
  17   char str[str_len+1];
  18   char *tok, *saveptr;
  19   size_t i;
  20   tok = strtok_r(str, " \t,\n\r", &saveptr);
  21   if (((*__ctype_b_loc ())[(int) ((tok[0]))]))
  22     tok = strtok_r(((void *)0), " \t,\n\r", &saveptr);
  23   else
  24     DEBUGLEVEL_CLASS[0] = 0;
  25   for (i = 0 +1; i < debug_num_classes; i++)
  26     DEBUGLEVEL_CLASS[i] = DEBUGLEVEL_CLASS[0];
  27   while (tok != ((void *)0) )
  28     debug_parse_param(tok);
  29 }