1 /* Taken from the Li18nux base test suite. */
3 #define _XOPEN_SOURCE 500
14 const char *str = "abcdef";
15 wint_t ret, wc, ungetone = 0x00E4; /* 0x00E4 means `a umlaut'. */
16 char fname[] = "/tmp/tst-ungetwc1.out.XXXXXX";
20 puts ("This program runs on de_DE.UTF-8 locale.");
21 if (setlocale (LC_ALL, "de_DE.UTF-8") == NULL)
23 fprintf (stderr, "Err: Cannot run on the de_DE.UTF-8 locale");
30 printf ("cannot open temp file: %m\n");
34 /* Write some characters to `testfile'. */
35 if ((fp = fdopen (fd, "w")) == NULL)
37 fprintf (stderr, "Cannot open 'testfile'.");
43 /* Open `testfile'. */
44 if ((fp = fopen (fname, "r")) == NULL)
46 fprintf (stderr, "Cannot open 'testfile'.");
50 /* Unget a character. */
51 ret = ungetwc (ungetone, fp);
52 printf ("Unget a character (0x%04x)\n", (unsigned int) ungetone);
56 puts ("ungetwc() returns NULL.");
60 /* Reget a character. */
62 printf ("Reget a character (0x%04x)\n", (unsigned int) wc);
66 puts ("The ungotten character is equal to the regotten character.");
71 puts ("The ungotten character is not equal to the regotten character.");
72 printf ("ungotten one: %04x, regetone: %04x", ungetone, wc);