1/* Test restarting behaviour of mbrtowc.
2 Copyright (C) 2000-2024 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) \
25 n = expr; \
26 printf (#expr " -> %zu", n); \
27 printf (", wc = %lu", (unsigned long int) wc); \
28 if (n != (size_t) nexp || wc != wcexp) \
29 { \
30 printf (", expected %zu and %lu", (size_t) nexp, \
31 (unsigned long int) wcexp); \
32 result = 1; \
33 } \
34 putc ('\n', stdout)
35
36static int
37do_test (void)
38{
39 const unsigned char buf[6] = { 0x25, 0xe2, 0x82, 0xac, 0xce, 0xbb };
40 mbstate_t state;
41 wchar_t wc = 42;
42 size_t n;
43 int result = 0;
44 const char *used_locale;
45
46 setlocale (LC_CTYPE, "de_DE.UTF-8");
47 /* Double check. */
48 used_locale = setlocale (LC_CTYPE, NULL);
49 printf (format: "used locale: \"%s\"\n", used_locale);
50 result = strcmp (used_locale, "de_DE.UTF-8");
51
52 memset (&state, '\0', sizeof (state));
53
54 show (mbrtowc (&wc, (const char *) buf + 0, 1, &state), 1, 37);
55 show (mbrtowc (&wc, (const char *) buf + 1, 1, &state), -2, 37);
56 show (mbrtowc (&wc, (const char *) buf + 2, 3, &state), 2, 8364);
57 show (mbrtowc (&wc, (const char *) buf + 4, 1, &state), -2, 8364);
58 show (mbrtowc (&wc, (const char *) buf + 5, 1, &state), 1, 955);
59 show (mbrtowc (&wc, (const char *) buf + 5, 1, &state), -1, 955);
60
61 return result;
62}
63
64#define TEST_FUNCTION do_test ()
65#include "../test-skeleton.c"
66

source code of glibc/localedata/tst-mbswcs1.c