1 /* Copyright (C) 1998-2022 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 *
get_gconv_fcts(struct __locale_data * data)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 */
76