/* Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.

   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, write to the Free
   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
   02111-1307 USA.  */

#include <locale.h>
#include <wchar.h>
#include <locale/localeinfo.h>


/* Contains pointers to the used functions in the `gconv' modules.  */
struct gconv_fcts
  {
    struct __gconv_step *towc;
    size_t towc_nsteps;
    struct __gconv_step *tomb;
    size_t tomb_nsteps;
  };

/* Set of currently active conversion functions.  */
extern struct gconv_fcts __wcsmbs_gconv_fcts attribute_hidden;


/* Last loaded locale for LC_CTYPE.  */
extern const struct locale_data *__wcsmbs_last_locale attribute_hidden;


/* Load conversion functions for the currently selected locale.  */
extern void __wcsmbs_load_conv (const struct locale_data *new_category)
     internal_function;

/* Clone the current `__wcsmbs_load_conv' value.  */
extern void __wcsmbs_clone_conv (struct gconv_fcts *copy)
     internal_function;

/* Find the conversion functions for converting to and from NAME.  */
extern int __wcsmbs_named_conv (struct gconv_fcts *copy, const char *name)
     internal_function;


/* Check whether the LC_CTYPE locale changed since the last call.
   Update the pointers appropriately.  */
static inline void
update_conversion_ptrs (void)
{
  if (__wcsmbs_last_locale != _NL_CURRENT_DATA (LC_CTYPE))
    __wcsmbs_load_conv (_NL_CURRENT_DATA (LC_CTYPE));
}