wcsmbs/wcsmbsload.h

   1 /* Copyright (C) 1998-2023 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   4    The GNU C Library is free software; you can redistribute it and/or
   5    modify it under the terms of the GNU Lesser General Public
   6    License as published by the Free Software Foundation; either
   7    version 2.1 of the License, or (at your option) any later version.
   8
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, see
  16    <https://www.gnu.org/licenses/>.  */
  17
  18 #ifndef _WCSMBSLOAD_H
  19 #define _WCSMBSLOAD_H   1
  20
  21 #include <locale.h>
  22 #include <wchar.h>
  23 #include <locale/localeinfo.h>
  24
  25
  26 /* Contains pointers to the used functions in the `gconv' modules.  */
  27 struct gconv_fcts
  28   {
  29     struct __gconv_step *towc;
  30     size_t towc_nsteps;
  31     struct __gconv_step *tomb;
  32     size_t tomb_nsteps;
  33   };
  34
  35 /* Set of currently active conversion functions.  */
  36 extern const struct gconv_fcts __wcsmbs_gconv_fcts_c attribute_hidden;
  37
  38 /* Load conversion functions for the currently selected locale.  */
  39 extern void __wcsmbs_load_conv (struct __locale_data *new_category)
  40      attribute_hidden;
  41
  42 /* Clone the current `__wcsmbs_load_conv' value.  */
  43 extern void __wcsmbs_clone_conv (struct gconv_fcts *copy)
  44      attribute_hidden;
  45
  46 /* Find the conversion functions for converting to and from NAME.  */
  47 extern int __wcsmbs_named_conv (struct gconv_fcts *copy, const char *name)
  48      attribute_hidden;
  49
  50 /* Function used for the `private.cleanup' hook.  */
  51 extern void _nl_cleanup_ctype (struct __locale_data *) attribute_hidden;
  52
  53
  54 #include <iconv/gconv_int.h>
  55
  56
  57 /* Load the function implementation if necessary.  */
  58 extern struct __gconv_step *__wcsmbs_getfct (const char *to, const char *from,
  59                                              size_t *nstepsp)
  60      attribute_hidden;
  61
  62 extern const struct __locale_data _nl_C_LC_CTYPE attribute_hidden;
  63
  64 /* Check whether the LC_CTYPE locale changed since the last call.
  65    Update the pointers appropriately.  */
  66 static inline const struct gconv_fcts *
  67 get_gconv_fcts (struct __locale_data *data)
  68 {
  69   struct lc_ctype_data *private = data->private;
  70   if (private->fcts == NULL)
  71     __wcsmbs_load_conv (data);
  72   return private->fcts;
  73 }
  74
  75 #endif  /* wcsmbsload.h */