1 /* Copyright (C) 2000 Free Software Foundation.
3 Ensure all expected transformations of builtin strncpy occur and
6 Written by Kaveh R. Ghazi, 11/25/2000. */
8 extern void abort (void);
9 typedef __SIZE_TYPE__ size_t;
10 extern char *strncpy (char *, const char *, size_t);
11 extern int strcmp (const char *, const char *);
12 extern int strncmp (const char *, const char *, size_t);
13 extern void *memset (void *, int, size_t);
20 const char *const src = "hello world";
24 memset (dst, 0, sizeof (dst));
25 if (strncpy (dst, src, 4) != dst || strncmp (dst, src, 4))
28 memset (dst, 0, sizeof (dst));
29 if (strncpy (dst+16, src, 4) != dst+16 || strncmp (dst+16, src, 4))
32 memset (dst, 0, sizeof (dst));
33 if (strncpy (dst+32, src+5, 4) != dst+32 || strncmp (dst+32, src+5, 4))
36 memset (dst, 0, sizeof (dst));
38 if (strncpy (++dst2, src+5, 4) != dst+1 || strncmp (dst2, src+5, 4)
42 memset (dst, 0, sizeof (dst));
43 if (strncpy (dst, src, 0) != dst || strcmp (dst, ""))
46 memset (dst, 0, sizeof (dst));
47 dst2 = dst; src2 = src;
48 if (strncpy (++dst2, ++src2, 0) != dst+1 || strcmp (dst2, "")
49 || dst2 != dst+1 || src2 != src+1)
52 memset (dst, 0, sizeof (dst));
53 dst2 = dst; src2 = src;
54 if (strncpy (++dst2+5, ++src2+5, 0) != dst+6 || strcmp (dst2+5, "")
55 || dst2 != dst+1 || src2 != src+1)
58 memset (dst, 0, sizeof (dst));
59 if (strncpy (dst, src, 12) != dst || strcmp (dst, src))
62 /* Test at least one instance of the __builtin_ style. We do this
63 to ensure that it works and that the prototype is correct. */
64 memset (dst, 0, sizeof (dst));
65 if (__builtin_strncpy (dst, src, 4) != dst || strncmp (dst, src, 4))
68 memset (dst, 0, sizeof (dst));
69 if (strncpy (dst, i++ ? "xfoo" + 1 : "bar", 4) != dst
70 || strcmp (dst, "bar")