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/* Convert string to 32-bit wide string.
Copyright (C) 2020-2024 Free Software Foundation, Inc.
Written by Bruno Haible <bruno@clisp.org>, 2020.
This file is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of the
License, or (at your option) any later version.
This file 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
#include <config.h>
#define IN_MBSRTOC32S
/* Specification. */
#include <uchar.h>
#include <wchar.h>
#if (HAVE_WORKING_MBRTOC32 && !_GL_WCHAR_T_IS_UCS4) || (GL_CHAR32_T_IS_UNICODE && GL_CHAR32_T_VS_WCHAR_T_NEEDS_CONVERSION) || _GL_SMALL_WCHAR_T
/* The char32_t encoding of a multibyte character may be different than its
wchar_t encoding, or char32_t is wider than wchar_t. */
# include <errno.h>
# include <limits.h>
# include <stdlib.h>
# include "strnlen1.h"
extern mbstate_t _gl_mbsrtoc32s_state;
# define FUNC mbsrtoc32s
# define DCHAR_T char32_t
# define INTERNAL_STATE _gl_mbsrtoc32s_state
# define MBRTOWC mbrtoc32
# if GNULIB_MBRTOC32_REGULAR
/* If the 'mbrtoc32-regular' module is in use, we don't need to handle
a (size_t)(-3) return value from mbrtoc32. */
# define USES_C32 0
# else
# define USES_C32 1
# endif
# include "mbsrtowcs-impl.h"
#else
/* char32_t and wchar_t are equivalent. */
static_assert (sizeof (char32_t) == sizeof (wchar_t));
# if _GL_WCHAR_T_IS_UCS4
_GL_EXTERN_INLINE
# endif
size_t
mbsrtoc32s (char32_t *dest, const char **srcp, size_t len, mbstate_t *ps)
{
return mbsrtowcs ((wchar_t *) dest, srcp, len, ps);
}
#endif
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