1 /* Test restarting behaviour of wcrtomb.
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, bufexp) \
25 { \
26 size_t res = expr; \
27 printf (#expr " -> %zu", res); \
28 dst += res; \
29 printf (", dst = buf+%td", dst - (char *) buf); \
30 if (res != nexp || dst != (char *) (bufexp)) \
31 { \
32 printf (", expected %zu and buf+%td", (size_t) nexp, \
33 (bufexp) - (unsigned char *) buf); \
34 result = 1; \
35 } \
36 putc ('\n', stdout); \
37 }
38
39 static int
do_test(void)40 do_test (void)
41 {
42 unsigned char buf[7] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
43 const unsigned char bufcheck[7] = { 0x25, 0xe2, 0x82, 0xac, 0xce, 0xbb, 0 };
44 const wchar_t srcbuf[4] = { 0x25, 0x20ac, 0x03bb, 0 };
45 mbstate_t state;
46 const wchar_t *src;
47 char *dst;
48 int result = 0;
49 const char *used_locale;
50
51 setlocale (LC_CTYPE, "de_DE.UTF-8");
52 /* Double check. */
53 used_locale = setlocale (LC_CTYPE, NULL);
54 printf ("used locale: \"%s\"\n", used_locale);
55 result = strcmp (used_locale, "de_DE.UTF-8");
56
57 memset (&state, '\0', sizeof (state));
58
59 src = srcbuf;
60 dst = (char *) buf;
61 show (wcrtomb (dst, *src++, &state), 1, buf + 1);
62 show (wcrtomb (dst, *src++, &state), 3, buf + 4);
63 show (wcrtomb (dst, *src++, &state), 2, buf + 6);
64 show (wcrtomb (dst, *src, &state), 1, buf + 7);
65
66 if (memcmp (buf, bufcheck, 7))
67 {
68 puts ("wrong results");
69 result = 1;
70 }
71
72 return result;
73 }
74
75 #define TEST_FUNCTION do_test ()
76 #include "../test-skeleton.c"
77