text: /* Return number of characters in multibyte representation for current
     character set.
     Copyright (C) 1996-2020 Free Software Foundation, Inc.
     This file is part of the GNU C Library.
     Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
  
     The GNU C Library 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.
  
     The GNU C Library 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 the GNU C Library; if not, see
     <https://www.gnu.org/licenses/>.  */
  
  #include <langinfo.h>
  #include <locale.h>
  #include <stdlib.h>
  #include "localeinfo.h"
  
  
  /* This is a gross hack to get broken programs running.
  
     ISO C provides no mean to find out how many bytes the wide
     character representation really uses.  But it defines MB_CUR_LEN to
     return the information for the multi-byte character representation.
     Many programmers don't know the difference between the two and
     think this means the same.  But assuming all characters have a size
     of MB_CUR_LEN after they have been processed by `mbrtowc' is wrong.
     Instead the maximum number of characters used for the conversion is
     MB_CUR_LEN.
  
     It is known that some Motif applications have this problem.  To
     cure this one has to make sure the glibc uses the function in this
     file instead of the one in locale/mb_cur_max.c.  This can either be
     done by linking with this file or by using the LD_PRELOAD feature
     of the dynamic linker.  */
  size_t
  __ctype_get_mb_cur_max (void)
  {
    union locale_data_value u;
  
    u.string = nl_langinfo (_NL_CTYPE_MB_CUR_MAX);
    return ((size_t []) { 1, 1, 1, 2, 2, 3, 4 })[u.word];
  }
  