1 /* Copyright (C) 2000, 2001 Free Software Foundation.
2
3 Ensure all expected transformations of builtin fputs occur and that
4 we honor side effects in the stream argument.
5
6 Written by Kaveh R. Ghazi, 10/30/2000. */
7
8 #include <stdio.h>
9 extern void abort(void);
10
11 int i;
12
13 void
main_test(void)14 main_test(void)
15 {
16 FILE *s_array[] = {stdout, NULL}, **s_ptr = s_array;
17 const char *const s1 = "hello world";
18
19 fputs ("", *s_ptr);
20 fputs ("\n", *s_ptr);
21 fputs ("bye", *s_ptr);
22 fputs (s1, *s_ptr);
23 fputs (s1+5, *s_ptr);
24 fputs (s1+10, *s_ptr);
25 fputs (s1+11, *s_ptr);
26
27 /* Check side-effects when transforming fputs -> NOP. */
28 fputs ("", *s_ptr++);
29 if (s_ptr != s_array+1 || *s_ptr != 0)
30 abort();
31
32 /* Check side-effects when transforming fputs -> fputc. */
33 s_ptr = s_array;
34 fputs ("\n", *s_ptr++);
35 if (s_ptr != s_array+1 || *s_ptr != 0)
36 abort();
37
38 /* Check side-effects when transforming fputs -> fwrite. */
39 s_ptr = s_array;
40 fputs ("hello\n", *s_ptr++);
41 if (s_ptr != s_array+1 || *s_ptr != 0)
42 abort();
43
44 /* Test at least one instance of the __builtin_ style. We do this
45 to ensure that it works and that the prototype is correct. */
46 s_ptr = s_array;
47 __builtin_fputs ("", *s_ptr);
48 /* These builtin stubs are called by __builtin_fputs, ensure their
49 prototypes are set correctly too. */
50 __builtin_fputc ('\n', *s_ptr);
51 __builtin_fwrite ("hello\n", 1, 6, *s_ptr);
52 /* Check the unlocked style, these evaluate to nothing to avoid
53 problems on systems without the unlocked functions. */
54 fputs_unlocked ("", *s_ptr);
55 __builtin_fputs_unlocked ("", *s_ptr);
56
57 /* Check side-effects in conditional expression. */
58 s_ptr = s_array;
59 fputs (i++ ? "f" : "x", *s_ptr++);
60 if (s_ptr != s_array+1 || *s_ptr != 0 || i != 1)
61 abort();
62 fputs (--i ? "\n" : "\n", *--s_ptr);
63 if (s_ptr != s_array || i != 0)
64 abort();
65 }
66