extern void abort (void);
typedef __SIZE_TYPE__ size_t;
extern char *strncat (char *, const char *, size_t);
extern char *strcpy (char *, const char *);
extern char *strcmp (const char *, const char *);
int x = 123;
int main ()
{
const char *const s1 = "hello world";
const char *const s2 = "";
char dst[64], *d2;
strcpy (dst, s1);
if (strncat (dst, "", 100) != dst || strcmp (dst, s1))
abort();
strcpy (dst, s1);
if (strncat (dst, s2, 100) != dst || strcmp (dst, s1))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2, s2, 100) != dst+1 || d2 != dst+1 || strcmp (dst, s1))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2+5, s2, 100) != dst+6 || d2 != dst+1 || strcmp (dst, s1))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2+5, s1+11, 100) != dst+6 || d2 != dst+1 || strcmp (dst, s1))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2+5, s1, 0) != dst+6 || d2 != dst+1 || strcmp (dst, s1))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2+5, "", ++x) != dst+6 || d2 != dst+1 || x != 124
|| strcmp (dst, s1))
abort();
strcpy (dst, s1);
if (strncat (dst, "foo", 3) != dst || strcmp (dst, "hello worldfoo"))
abort();
strcpy (dst, s1);
if (strncat (dst, "foo", 100) != dst || strcmp (dst, "hello worldfoo"))
abort();
strcpy (dst, s1);
if (strncat (dst, s1, 100) != dst || strcmp (dst, "hello worldhello world"))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2, s1, 100) != dst+1 || d2 != dst+1
|| strcmp (dst, "hello worldhello world"))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2+5, s1, 100) != dst+6 || d2 != dst+1
|| strcmp (dst, "hello worldhello world"))
abort();
strcpy (dst, s1); d2 = dst;
if (strncat (++d2+5, s1+5, 100) != dst+6 || d2 != dst+1
|| strcmp (dst, "hello world world"))
abort();
strcpy (dst, s1);
if (__builtin_strncat (dst, "", 100) != dst || strcmp (dst, s1))
abort();
return 0;
}
#ifdef __OPTIMIZE__
static char *
strncat (char *s1, const char *s2, size_t n)
{
abort();
}
#endif