1/* Copyright (C) 2000, 2003  Free Software Foundation.
2
3   Ensure all expected transformations of builtin strstr occur and
4   perform correctly in presence of redirect.  */
5
6#define ASMNAME(cname)  ASMNAME2 (__USER_LABEL_PREFIX__, cname)
7#define ASMNAME2(prefix, cname) STRING (prefix) cname
8#define STRING(x)    #x
9
10typedef __SIZE_TYPE__ size_t;
11extern void abort (void);
12extern char *strstr (const char *, const char *)
13  __asm (ASMNAME ("my_strstr"));
14
15const char *p = "rld", *q = "hello world";
16
17void
18main_test (void)
19{
20  const char *const foo = "hello world";
21
22  if (strstr (foo, "") != foo)
23    abort ();
24  if (strstr (foo + 4, "") != foo + 4)
25    abort ();
26  if (strstr (foo, "h") != foo)
27    abort ();
28  if (strstr (foo, "w") != foo + 6)
29    abort ();
30  if (strstr (foo + 6, "o") != foo + 7)
31    abort ();
32  if (strstr (foo + 1, "world") != foo + 6)
33    abort ();
34  if (strstr (foo + 2, p) != foo + 8)
35    abort ();
36  if (strstr (q, "") != q)
37    abort ();
38  if (strstr (q + 1, "o") != q + 4)
39    abort ();
40
41  /* Test at least one instance of the __builtin_ style.  We do this
42     to ensure that it works and that the prototype is correct.  */
43  if (__builtin_strstr (foo + 1, "world") != foo + 6)
44    abort ();
45}
46