glibc/locale/xlocale.h

/* Definition of locale datatype.
   Copyright (C) 1997, 2000 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Library General Public License as
   published by the Free Software Foundation; either version 2 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
   Library General Public License for more details.

   You should have received a copy of the GNU Library General Public
   License along with the GNU C Library; see the file COPYING.LIB.  If not,
   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
   Boston, MA 02111-1307, USA.  */

#ifndef _XLOCALE_H
#define _XLOCALE_H	1

/* Structure for reentrant locale using functions.  This is an
   (almost) opaque type for the user level programs.  The file and
   this data structure is not standardized.  Don't rely on it.  It can
   go away without warning.  */
typedef struct __locale_struct
{
  /* Note: LC_ALL is not a valid index into this array.  */
  struct locale_data *__locales[13]; /* 13 = __LC_LAST. */

  /* To increase the speed of this solution we add some special members.  */
  const unsigned short int *__ctype_b;
  const int *__ctype_tolower;
  const int *__ctype_toupper;
} *__locale_t;

#endif /* xlocale.h */