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 */