wcsmbs/wcsmbsload.h

   1 /* Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Library General Public License as
   7    published by the Free Software Foundation; either version 2 of the
   8    License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Library General Public License for more details.
  14
  15    You should have received a copy of the GNU Library General Public
  16    License along with the GNU C Library; see the file COPYING.LIB.  If not,
  17    write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  18    Boston, MA 02111-1307, USA.  */
  19
  20 #include <locale.h>
  21 #include <wchar.h>
  22 #include <locale/localeinfo.h>
  23
  24
  25 /* Contains pointers to the used functions in the `gconv' modules.  */
  26 struct gconv_fcts
  27   {
  28     struct __gconv_step *towc;
  29     struct __gconv_step *tomb;
  30   };
  31
  32 /* Set of currently active conversion functions.  */
  33 extern struct gconv_fcts __wcsmbs_gconv_fcts;
  34
  35
  36 /* Last loaded locale for LC_CTYPE.  */
  37 extern const struct locale_data *__wcsmbs_last_locale;
  38
  39
  40 /* Load conversion functions for the currently selected locale.  */
  41 extern void __wcsmbs_load_conv (const struct locale_data *new_category)
  42      internal_function;
  43
  44 /* Clone the current `__wcsmbs_load_conv' value.  */
  45 extern void __wcsmbs_clone_conv (struct gconv_fcts *copy)
  46      internal_function;
  47
  48 /* Find the conversion functions for converting to and from NAME.  */
  49 extern int __wcsmbs_named_conv (struct gconv_fcts *copy, const char *name)
  50      internal_function;
  51
  52
  53 /* Check whether the LC_CTYPE locale changed since the last call.
  54    Update the pointers appropriately.  */
  55 static inline void
  56 update_conversion_ptrs (void)
  57 {
  58   if (__wcsmbs_last_locale != _nl_current_LC_CTYPE)
  59     __wcsmbs_load_conv (_nl_current_LC_CTYPE);
  60 }