extern void abort (void);
typedef __SIZE_TYPE__ size_t;
extern char *strncpy (char *, const char *, size_t);
extern int strcmp (const char *, const char *);
extern int strncmp (const char *, const char *, size_t);
extern void *memset (void *, int, size_t);
int i;
void
main_test (void)
{
const char *const src = "hello world";
const char *src2;
char dst[64], *dst2;
memset (dst, 0, sizeof (dst));
if (strncpy (dst, src, 4) != dst || strncmp (dst, src, 4))
abort();
memset (dst, 0, sizeof (dst));
if (strncpy (dst+16, src, 4) != dst+16 || strncmp (dst+16, src, 4))
abort();
memset (dst, 0, sizeof (dst));
if (strncpy (dst+32, src+5, 4) != dst+32 || strncmp (dst+32, src+5, 4))
abort();
memset (dst, 0, sizeof (dst));
dst2 = dst;
if (strncpy (++dst2, src+5, 4) != dst+1 || strncmp (dst2, src+5, 4)
|| dst2 != dst+1)
abort();
memset (dst, 0, sizeof (dst));
if (strncpy (dst, src, 0) != dst || strcmp (dst, ""))
abort();
memset (dst, 0, sizeof (dst));
dst2 = dst; src2 = src;
if (strncpy (++dst2, ++src2, 0) != dst+1 || strcmp (dst2, "")
|| dst2 != dst+1 || src2 != src+1)
abort();
memset (dst, 0, sizeof (dst));
dst2 = dst; src2 = src;
if (strncpy (++dst2+5, ++src2+5, 0) != dst+6 || strcmp (dst2+5, "")
|| dst2 != dst+1 || src2 != src+1)
abort();
memset (dst, 0, sizeof (dst));
if (strncpy (dst, src, 12) != dst || strcmp (dst, src))
abort();
memset (dst, 0, sizeof (dst));
if (__builtin_strncpy (dst, src, 4) != dst || strncmp (dst, src, 4))
abort();
memset (dst, 0, sizeof (dst));
if (strncpy (dst, i++ ? "xfoo" + 1 : "bar", 4) != dst
|| strcmp (dst, "bar")
|| i != 1)
abort ();
return 0;
}