Mercurial > gnulib
view lib/wcrtomb.c @ 40137:9e646f080d9e
wcrtomb: Work around bug on Android 4.3.
* m4/wcrtomb.m4 (gl_FUNC_WCRTOMB): Test also whether wcrtomb works in
the C locale.
* lib/wcrtomb.c (wcrtomb): Provide alternate implementation for Android,
which does not have the 'wctomb' function.
* doc/posix-functions/wcrtomb.texi: Mention the Android bug.
* tests/test-wcrtomb.c (main): Accept argument '5'.
* tests/test-wcrtomb.sh: Add tests in the POSIX locale.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 25 Jan 2019 23:39:28 +0100 |
parents | b06060465f09 |
children |
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/* Convert wide character to multibyte character. Copyright (C) 2008-2019 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2008. 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/>. */ #include <config.h> /* Specification. */ #include <wchar.h> #include <errno.h> #include <stdlib.h> size_t wcrtomb (char *s, wchar_t wc, mbstate_t *ps) { /* This implementation of wcrtomb supports only stateless encodings. ps must be in the initial state. */ if (ps != NULL && !mbsinit (ps)) { errno = EINVAL; return (size_t)(-1); } if (s == NULL) /* We know the NUL wide character corresponds to the NUL character. */ return 1; else { #if defined __ANDROID__ /* Implement consistently with mbrtowc(): through a 1:1 correspondence, as in ISO-8859-1. */ if (wc >= 0 && wc <= 0xff) { *s = (unsigned char) wc; return 1; } #else /* Implement on top of wctomb(). */ int ret = wctomb (s, wc); if (ret >= 0) return ret; #endif else { errno = EILSEQ; return (size_t)(-1); } } }