tests/tests2/117_builtins.c

   1 #include <stdio.h>
   2
   3 struct big_struct { char a[262144]; };
   4
   5 static const char str[] = "abcdefghijklmnopqrstuvwxyz";
   6
   7 int
   8 main (void)
   9 {
  10   char *p;
  11   char tmp[100];
  12   int r = 0;
  13
  14 #if defined __BOUNDS_CHECKING_ON || defined BC_ON
  15   printf("BOUNDS ON:\n");
  16 #else
  17   printf("BOUNDS OFF:\n");
  18 #endif
  19
  20   if (r != 0)
  21     __builtin_abort();
  22
  23   r = (__builtin_offsetof(struct big_struct, a) != 0);
  24   printf(" 1:%d", !r);
  25
  26   p = __builtin_memcpy (tmp, str, sizeof(str));
  27   r = (p != tmp);
  28   printf(" 2:%d", !r);
  29
  30   r = __builtin_memcmp (p, str, sizeof(str));
  31   printf(" 3:%d", !r);
  32
  33   p = __builtin_memmove(tmp, str, sizeof(str));
  34   r = (__builtin_memcmp (p, str, sizeof(str)));
  35   printf(" 4:%d", !r);
  36
  37   p = __builtin_memset(tmp, 0, sizeof (tmp));
  38   r = (p != tmp || tmp[0] != 0 || tmp[99] != 0);
  39   printf(" 5:%d", !r);
  40
  41   r = (__builtin_strlen(str) != sizeof(str) - 1);
  42   printf(" 6:%d", !r);
  43
  44   p = __builtin_strcpy(tmp, str);
  45   r = (__builtin_memcmp (p, str, sizeof(str)));
  46   printf(" 7:%d", !r);
  47
  48   p = __builtin_strncpy(tmp, str, sizeof(str));
  49   r = (__builtin_memcmp (p, str, sizeof(str)));
  50   printf(" 8:%d", !r);
  51
  52   r = (__builtin_strcmp (p, str));
  53   printf(" 9:%d", !r);
  54
  55   r = (__builtin_strncmp (p, str, sizeof(str)));
  56   printf(" 10:%d", !r);
  57
  58   tmp[0] = '\0';
  59   p = __builtin_strcat(tmp, str);
  60   r = (__builtin_memcmp (p, str, sizeof(str)));
  61   printf(" 11:%d", !r);
  62
  63   r = (__builtin_strchr(p, 'z') != &p[25]);
  64   printf(" 12:%d", !r);
  65
  66   p = __builtin_strdup (str);
  67   r = (__builtin_memcmp (p, str, sizeof(str)));
  68   printf(" 13:%d", !r);
  69   __builtin_free(p);
  70
  71   p = __builtin_malloc (100);
  72   __builtin_memset(p, 0, 100);
  73   p = __builtin_realloc (p, 1000);
  74   __builtin_memset(p, 0, 1000);
  75   __builtin_free(p);
  76
  77   p = __builtin_calloc(10, 10);
  78   __builtin_memset(p, 0, 100);
  79   __builtin_free(p);
  80
  81 #if defined(__i386__) || defined(__x86_64__)
  82   p = __builtin_alloca(100);
  83   __builtin_memset(p, 0, 100);
  84 #endif
  85   printf("\n");
  86 }