1 /* Test restarting behaviour of mbsrtowcs.
2 Copyright (C) 2000-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <stdio.h>
20 #include <string.h>
21 #include <wchar.h>
22 #include <locale.h>
23
24 #define show(expr, nexp, wcexp, end) \
25 n = expr; \
26 printf (#expr " -> %zu", n); \
27 printf (", wc = %lu, src = buf+%td", (unsigned long int) wc, \
28 src - (const char *) buf); \
29 if (n != (size_t) nexp || wc != wcexp || src != (const char *) (end)) \
30 { \
31 printf (", expected %zu and %lu and buf+%td", (size_t) nexp, \
32 (unsigned long int) wcexp, (end) - buf); \
33 result = 1; \
34 } \
35 putc ('\n', stdout)
36
37 static int
do_test(void)38 do_test (void)
39 {
40 unsigned char buf[6] = { 0x25, 0xe2, 0x82, 0xac, 0xce, 0xbb };
41 mbstate_t state;
42 const char *src;
43 wchar_t wc = 42;
44 size_t n;
45 int result = 0;
46 const char *used_locale;
47
48 setlocale (LC_CTYPE,"de_DE.UTF-8");
49 /* Double check. */
50 used_locale = setlocale (LC_CTYPE, NULL);
51 printf ("used locale: \"%s\"\n", used_locale);
52 result = strcmp (used_locale, "de_DE.UTF-8");
53
54 memset (&state, '\0', sizeof (state));
55
56 src = (const char *) buf;
57 show (mbsrtowcs (&wc, &src, 1, &state), 1, 37, buf + 1);
58 show (mbsrtowcs (&wc, &src, 1, &state), 1, 8364, buf + 4);
59 show (mbsrtowcs (&wc, &src, 1, &state), 1, 955, buf + 6);
60
61 return result;
62 }
63
64 #define TEST_FUNCTION do_test ()
65 #include "../test-skeleton.c"
66