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/* Test of conversion of multibyte character to wide character
on native Windows in the UTF-8 environment.
Copyright (C) 2024-2025 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
#include <config.h>
#include <wchar.h>
#include <errno.h>
#include <locale.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "macros.h"
int
main (void)
{
#ifdef _UCRT
/* Test that MB_CUR_MAX and mbrtowc() work as expected in a UTF-8 locale. */
mbstate_t state;
wchar_t wc;
size_t ret;
if (setlocale (LC_ALL, "") == NULL)
return 1;
ASSERT (MB_CUR_MAX >= 4);
{
char input[] = "B\303\274\303\237er"; /* "Büßer" */
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input, 1, &state);
ASSERT (ret == 1);
ASSERT (wc == 'B');
ASSERT (mbsinit (&state));
input[0] = '\0';
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input + 1, 1, &state);
ASSERT (ret == (size_t)(-2));
ASSERT (wc == (wchar_t) 0xBADFACE);
ASSERT (!mbsinit (&state));
input[1] = '\0';
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input + 2, 5, &state);
ASSERT (ret == 1);
ASSERT (wctob (wc) == EOF);
ASSERT (wc == 0x00FC);
ASSERT (mbsinit (&state));
input[2] = '\0';
/* Test support of NULL first argument. */
ret = mbrtowc (NULL, input + 3, 4, &state);
ASSERT (ret == 2);
ASSERT (mbsinit (&state));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input + 3, 4, &state);
ASSERT (ret == 2);
ASSERT (wctob (wc) == EOF);
ASSERT (wc == 0x00DF);
ASSERT (mbsinit (&state));
input[3] = '\0';
input[4] = '\0';
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input + 5, 2, &state);
ASSERT (ret == 1);
ASSERT (wc == 'e');
ASSERT (mbsinit (&state));
input[5] = '\0';
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, input + 6, 1, &state);
ASSERT (ret == 1);
ASSERT (wc == 'r');
ASSERT (mbsinit (&state));
/* Test some invalid input. */
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\377", 1, &state); /* 0xFF */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\303\300", 2, &state); /* 0xC3 0xC0 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\343\300", 2, &state); /* 0xE3 0xC0 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\343\300\200", 3, &state); /* 0xE3 0xC0 0x80 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\343\200\300", 3, &state); /* 0xE3 0x80 0xC0 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\363\300", 2, &state); /* 0xF3 0xC0 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\363\300\200\200", 4, &state); /* 0xF3 0xC0 0x80 0x80 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\363\200\300", 3, &state); /* 0xF3 0x80 0xC0 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\363\200\300\200", 4, &state); /* 0xF3 0x80 0xC0 0x80 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
memset (&state, '\0', sizeof (mbstate_t));
wc = (wchar_t) 0xBADFACE;
ret = mbrtowc (&wc, "\363\200\200\300", 4, &state); /* 0xF3 0x80 0x80 0xC0 */
ASSERT (ret == (size_t)-1);
ASSERT (errno == EILSEQ);
}
return test_exit_status;
#else
fputs ("Skipping test: not using the UCRT runtime\n", stderr);
return 77;
#endif
}
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