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Commit | Line | Data |
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5d2e6976 AS |
1 | /* Test program for fsetpos on a wide character stream. */ |
2 | ||
3 | #include <assert.h> | |
4 | #include <stdio.h> | |
5 | #include <wchar.h> | |
6 | ||
026a84a5 FB |
7 | #include <support/xunistd.h> |
8 | ||
5d2e6976 AS |
9 | static void do_prepare (void); |
10 | #define PREPARE(argc, argv) do_prepare () | |
11 | static int do_test (void); | |
12 | #define TEST_FUNCTION do_test () | |
13 | #include <test-skeleton.c> | |
14 | ||
15 | static const char pattern[] = "12345"; | |
16 | static char *temp_file; | |
17 | ||
18 | static void | |
19 | do_prepare (void) | |
20 | { | |
21 | int fd = create_temp_file ("bug-wsetpos.", &temp_file); | |
22 | if (fd == -1) | |
23 | { | |
24 | printf ("cannot create temporary file: %m\n"); | |
25 | exit (1); | |
26 | } | |
026a84a5 | 27 | xwrite (fd, pattern, sizeof (pattern)); |
5d2e6976 AS |
28 | close (fd); |
29 | } | |
30 | ||
31 | static int | |
32 | do_test (void) | |
33 | { | |
34 | FILE *fp = fopen (temp_file, "r"); | |
35 | fpos_t pos; | |
36 | wchar_t c; | |
37 | ||
38 | if (fp == NULL) | |
39 | { | |
40 | printf ("fdopen: %m\n"); | |
41 | return 1; | |
42 | } | |
43 | ||
44 | c = fgetwc (fp); assert (c == L'1'); | |
45 | c = fgetwc (fp); assert (c == L'2'); | |
46 | ||
47 | if (fgetpos (fp, &pos) == EOF) | |
48 | { | |
49 | printf ("fgetpos: %m\n"); | |
50 | return 1; | |
51 | } | |
52 | ||
53 | rewind (fp); | |
54 | if (ferror (fp)) | |
55 | { | |
56 | printf ("rewind: %m\n"); | |
57 | return 1; | |
58 | } | |
59 | ||
60 | c = fgetwc (fp); assert (c == L'1'); | |
61 | ||
62 | if (fsetpos (fp, &pos) == EOF) | |
63 | { | |
64 | printf ("fsetpos: %m\n"); | |
65 | return 1; | |
66 | } | |
67 | ||
68 | c = fgetwc (fp); | |
69 | if (c != L'3') | |
70 | { | |
71 | puts ("fsetpos failed"); | |
72 | return 1; | |
73 | } | |
74 | ||
75 | puts ("Test succeeded."); | |
76 | return 0; | |
77 | } |