1 files changed, 65 insertions, 0 deletions
diff --git a/gl/lib/mbsrtoc32s.c b/gl/lib/mbsrtoc32s.c
new file mode 100644
index 0000000..896dc51
--- /dev/null
+++ b/gl/lib/mbsrtoc32s.c
@@ -0,0 +1,65 @@
+/* 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