1/* Copyright (C) 2003, 2004  Free Software Foundation.
2
3   Ensure builtin stpcpy performs correctly.
4
5   Written by Kaveh Ghazi, 4/11/2003.  */
6
7typedef __SIZE_TYPE__ size_t;
8
9extern void abort (void);
10extern char *strcpy (char *, const char *);
11extern char *stpcpy (char *, const char *);
12extern int memcmp (const void *, const void *, size_t);
13
14extern int inside_main;
15
16const char s1[] = "123";
17char p[32] = "";
18char *s2 = "defg";
19char *s3 = "FGH";
20size_t l1 = 1;
21
22void
23main_test (void)
24{
25  int i = 8;
26
27#if !defined __i386__ && !defined __x86_64__
28  /* The functions below might not be optimized into direct stores on all
29     arches.  It depends on how many instructions would be generated and
30     what limits the architecture chooses in STORE_BY_PIECES_P.  */
31  inside_main = 0;
32#endif
33  if (stpcpy (p, "abcde") != p + 5 || memcmp (p, "abcde", 6))
34    abort ();
35  if (stpcpy (p + 16, "vwxyz" + 1) != p + 16 + 4 || memcmp (p + 16, "wxyz", 5))
36    abort ();
37  if (stpcpy (p + 1, "") != p + 1 + 0 || memcmp (p, "a\0cde", 6))
38    abort ();
39  if (stpcpy (p + 3, "fghij") != p + 3 + 5 || memcmp (p, "a\0cfghij", 9))
40    abort ();
41
42  if (stpcpy ((i++, p + 20 + 1), "23") != (p + 20 + 1 + 2)
43      || i != 9 || memcmp (p + 19, "z\0""23\0", 5))
44    abort ();
45
46  if (stpcpy (stpcpy (p, "ABCD"), "EFG") != p + 7 || memcmp (p, "ABCDEFG", 8))
47    abort();
48
49  /* Test at least one instance of the __builtin_ style.  We do this
50     to ensure that it works and that the prototype is correct.  */
51  if (__builtin_stpcpy (p, "abcde") != p + 5 || memcmp (p, "abcde", 6))
52    abort ();
53
54    /* If the result of stpcpy is ignored, gcc should use strcpy.
55       This should be optimized always, so set inside_main again.  */
56  inside_main = 1;
57  stpcpy (p + 3, s3);
58  if (memcmp (p, "abcFGH", 6))
59    abort ();
60}
61