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1/* Taken from the Li18nux base test suite. */
2
3#define _XOPEN_SOURCE 500
4#include <locale.h>
5#include <stdio.h>
6#include <stdlib.h>
7#include <unistd.h>
8#include <wchar.h>
9
10static int
11do_test (void)
12{
13 FILE *fp;
14 const char *str = "abcdef";
15 wint_t ret, wc, ungetone = 0x00E4; /* 0x00E4 means `a umlaut'. */
16 char fname[] = "/tmp/tst-ungetwc1.out.XXXXXX";
17 int fd;
18 int result = 0;
19
20 puts ("This program runs on de_DE.UTF-8 locale.");
21 if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
22 {
23 fprintf (stderr, "Err: Cannot run on the de_DE.UTF-8 locale");
24 exit (EXIT_FAILURE);
25 }
26
27 fd = mkstemp (fname);
28 if (fd == -1)
29 {
30 printf ("cannot open temp file: %m\n");
31 exit (EXIT_FAILURE);
32 }
33
34 /* Write some characters to `testfile'. */
35 if ((fp = fdopen (fd, "w")) == NULL)
36 {
37 fprintf (stderr, "Cannot open 'testfile'.");
38 exit (EXIT_FAILURE);
39 }
40 fputs (str, fp);
41 fclose (fp);
42
43 /* Open `testfile'. */
44 if ((fp = fopen (fname, "r")) == NULL)
45 {
46 fprintf (stderr, "Cannot open 'testfile'.");
47 exit (EXIT_FAILURE);
48 }
49
50 /* Unget a character. */
51 ret = ungetwc (ungetone, fp);
52 printf ("Unget a character (0x%04x)\n", (unsigned int) ungetone);
53 fflush (stdout);
54 if (ret == WEOF)
55 {
56 puts ("ungetwc() returns NULL.");
57 exit (EXIT_SUCCESS);
58 }
59
60 /* Reget a character. */
61 wc = getwc (fp);
62 printf ("Reget a character (0x%04x)\n", (unsigned int) wc);
63 fflush (stdout);
64 if (wc == ungetone)
65 {
66 puts ("The ungotten character is equal to the regotten character.");
67 fflush (stdout);
68 }
69 else
70 {
71 puts ("The ungotten character is not equal to the regotten character.");
72 printf ("ungotten one: %04x, regetone: %04x", ungetone, wc);
73 fflush (stdout);
74 result = 1;
75 }
76 fclose (fp);
77
78 unlink (fname);
79
80 return result;
81}
82
83#define TEST_FUNCTION do_test ()
84#include "../test-skeleton.c"
85

Warning: That file was not part of the compilation database. It may have many parsing errors.