1 /* Check regression of a bug uncovered by the libio tFile test (old
2 libstdc++, pre-gcc-3.x era), where appending to a file doesn't work.
3 The default open-flags-mapping does not match Linux/CRIS, so a
4 specific mapping is necessary. */
5
6 #include <stdio.h>
7 #include <string.h>
8 #include <stdlib.h>
9
10 int
main(void)11 main (void)
12 {
13 FILE *f;
14 const char fname[] = "sk1test.dat";
15 const char tsttxt1[]
16 = "This is the first and only line of this file.\n";
17 const char tsttxt2[] = "Now there is a second line.\n";
18 char buf[sizeof (tsttxt1) + sizeof (tsttxt2) - 1] = "";
19
20 f = fopen (fname, "w+");
21 if (f == NULL
22 || fwrite (tsttxt1, 1, strlen (tsttxt1), f) != strlen (tsttxt1)
23 || fclose (f) != 0)
24 {
25 printf ("fail\n");
26 exit (1);
27 }
28
29 f = fopen (fname, "a+");
30 if (f == NULL
31 || fwrite (tsttxt2, 1, strlen (tsttxt2), f) != strlen (tsttxt2)
32 || fclose (f) != 0)
33 {
34 printf ("fail\n");
35 exit (1);
36 }
37
38 f = fopen (fname, "r");
39 if (f == NULL
40 || fread (buf, 1, sizeof (buf), f) != sizeof (buf) - 1
41 || strncmp (buf, tsttxt1, strlen (tsttxt1)) != 0
42 || strncmp (buf + strlen (tsttxt1), tsttxt2, strlen (tsttxt2)) != 0
43 || fclose (f) != 0)
44 {
45 printf ("fail\n");
46 exit (1);
47 }
48
49 printf ("pass\n");
50 exit (0);
51 }
52