[thirdparty/glibc.git] / iconv / gconv_int.h

/* Copyright (C) 1997-2022 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   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, see
   <https://www.gnu.org/licenses/>.  */

#ifndef _GCONV_INT_H
#define _GCONV_INT_H	1

#include "gconv.h"
#include <stdlib.h>		/* For alloca used in macro below.  */
#include <ctype.h>		/* For __toupper_l used in macro below.  */
#include <string.h>		/* For strlen et al used in macro below.  */
#include <libc-lock.h>

__BEGIN_DECLS


/* Structure for alias definition.  Simply two strings.  */
struct gconv_alias
{
  char *fromname;
  char *toname;
};


/* Structure describing one loaded shared object.  This normally are
   objects to perform conversation but as a special case the db shared
   object is also handled.  */
struct __gconv_loaded_object
{
  /* Name of the object.  It must be the first structure element.  */
  const char *name;

  /* Reference counter for the db functionality.  If no conversion is
     needed we unload the db library.  */
  int counter;

  /* The handle for the shared object.  */
  void *handle;

  /* Pointer to the functions the module defines.  */
  __gconv_fct fct;
  __gconv_init_fct init_fct;
  __gconv_end_fct end_fct;
};


/* Description for an available conversion module.  */
struct gconv_module
{
  const char *from_string;
  const char *to_string;

  int cost_hi;
  int cost_lo;

  const char *module_name;

  struct gconv_module *left;	/* Prefix smaller.  */
  struct gconv_module *same;	/* List of entries with identical prefix.  */
  struct gconv_module *right;	/* Prefix larger.  */
};


/* The specification of the conversion that needs to be performed.  */
struct gconv_spec
{
  char *fromcode;
  char *tocode;
  bool translit;
  bool ignore;
};

/* Flags for `gconv_open'.  */
enum
{
  GCONV_AVOID_NOCONV = 1 << 0
};

/* When GCONV_AVOID_NOCONV is set and no conversion is needed,
   __GCONV_NULCONV should be returned.  */
enum
{
  __GCONV_NULCONV = -1
};

/* Global variables.  */

/* Database of alias names.  */
extern void *__gconv_alias_db attribute_hidden;

/* Array with available modules.  */
extern struct gconv_module *__gconv_modules_db attribute_hidden;

/* Value of the GCONV_PATH environment variable.  */
extern const char *__gconv_path_envvar attribute_hidden;

/* Lock for the conversion database content.  */
__libc_lock_define (extern, __gconv_lock attribute_hidden)


/* The gconv functions expects the name to be in upper case and complete,
   including the trailing slashes if necessary.  */
#define norm_add_slashes(str,suffix) \
  ({									      \
    const char *cp = (str);						      \
    char *result;							      \
    char *tmp;								      \
    size_t cnt = 0;							      \
    const size_t suffix_len = strlen (suffix);				      \
									      \
    while (*cp != '\0')							      \
      if (*cp++ == '/')							      \
	++cnt;								      \
									      \
    tmp = result = __alloca (cp - (str) + 3 + suffix_len);		      \
    cp = (str);								      \
    while (*cp != '\0')							      \
      *tmp++ = __toupper_l (*cp++, _nl_C_locobj_ptr);			      \
    if (cnt < 2)							      \
      {									      \
	*tmp++ = '/';							      \
	if (cnt < 1)							      \
	  {								      \
	    *tmp++ = '/';						      \
	    if (suffix_len != 0)					      \
	      tmp = __mempcpy (tmp, suffix, suffix_len);		      \
	  }								      \
      }									      \
    *tmp = '\0';							      \
    result;								      \
  })


/* Return in *HANDLE, a decriptor for the transformation.  The function expects
   the specification of the transformation in the structure pointed to by
   CONV_SPEC.  It only reads *CONV_SPEC and does not take ownership of it.  */
extern int __gconv_open (struct gconv_spec *conv_spec,
                         __gconv_t *handle, int flags);
libc_hidden_proto (__gconv_open)

/* This function accepts the charset names of the source and destination of the
   conversion and populates *conv_spec with an equivalent conversion
   specification that may later be used by __gconv_open.  The charset names
   might contain options in the form of suffixes that alter the conversion,
   e.g. "ISO-10646/UTF-8/TRANSLIT".  It processes the charset names, ignoring
   and truncating any suffix options in fromcode, and processing and truncating
   any suffix options in tocode.  Supported suffix options ("TRANSLIT" or
   "IGNORE") when found in tocode lead to the corresponding flag in *conv_spec
   to be set to true.  Unrecognized suffix options are silently discarded.  If
   the function succeeds, it returns conv_spec back to the caller.  It returns
   NULL upon failure.  */
extern struct gconv_spec *
__gconv_create_spec (struct gconv_spec *conv_spec, const char *fromcode,
                     const char *tocode);
libc_hidden_proto (__gconv_create_spec)

/* This function frees all heap memory allocated by __gconv_create_spec.  */
extern void
__gconv_destroy_spec (struct gconv_spec *conv_spec);
libc_hidden_proto (__gconv_destroy_spec)

/* Free resources associated with transformation descriptor CD.  */
extern int __gconv_close (__gconv_t cd)
     attribute_hidden;

/* Transform at most *INBYTESLEFT bytes from buffer starting at *INBUF
   according to rules described by CD and place up to *OUTBYTESLEFT
   bytes in buffer starting at *OUTBUF.  Return number of non-identical
   conversions in *IRREVERSIBLE if this pointer is not null.  */
extern int __gconv (__gconv_t cd, const unsigned char **inbuf,
		    const unsigned char *inbufend, unsigned char **outbuf,
		    unsigned char *outbufend, size_t *irreversible)
     attribute_hidden;

/* Return in *HANDLE a pointer to an array with *NSTEPS elements describing
   the single steps necessary for transformation from FROMSET to TOSET.  */
extern int __gconv_find_transform (const char *toset, const char *fromset,
				   struct __gconv_step **handle,
				   size_t *nsteps, int flags)
     attribute_hidden;

/* Search for transformation in cache data.  */
extern int __gconv_lookup_cache (const char *toset, const char *fromset,
				 struct __gconv_step **handle, size_t *nsteps,
				 int flags)
     attribute_hidden;

/* Compare the two name for whether they are after alias expansion the
   same.  This function uses the cache and fails if none is
   loaded.  */
extern int __gconv_compare_alias_cache (const char *name1, const char *name2,
					int *result)
     attribute_hidden;

/* Free data associated with a step's structure.  */
extern void __gconv_release_step (struct __gconv_step *step)
     attribute_hidden;

/* Read all the configuration data and cache it if not done so already.  */
extern void __gconv_load_conf (void) attribute_hidden;

/* Try to read module cache file.  */
extern int __gconv_load_cache (void) attribute_hidden;

/* Retrieve pointer to internal cache.  */
extern void *__gconv_get_cache (void);

/* Retrieve pointer to internal module database.  */
extern struct gconv_module *__gconv_get_modules_db (void);

/* Retrieve pointer to internal alias database.  */
extern void *__gconv_get_alias_db (void);

/* Comparison function to search alias.  */
extern int __gconv_alias_compare (const void *p1, const void *p2)
     attribute_hidden;

/* Clear reference to transformation step implementations which might
   cause the code to be unloaded.  */
extern int __gconv_close_transform (struct __gconv_step *steps,
				    size_t nsteps)
     attribute_hidden;

/* Free all resources allocated for the transformation record when
   using the cache.  */
extern void __gconv_release_cache (struct __gconv_step *steps, size_t nsteps)
     attribute_hidden;

/* Load shared object named by NAME.  If already loaded increment reference
   count.  */
extern struct __gconv_loaded_object *__gconv_find_shlib (const char *name)
     attribute_hidden;

/* Release shared object.  If no further reference is available unload
   the object.  */
extern void __gconv_release_shlib (struct __gconv_loaded_object *handle)
     attribute_hidden;

/* Fill STEP with information about builtin module with NAME.  */
extern void __gconv_get_builtin_trans (const char *name,
				       struct __gconv_step *step)
     attribute_hidden;

/* Transliteration using the locale's data.  */
extern int __gconv_transliterate (struct __gconv_step *step,
                                  struct __gconv_step_data *step_data,
                                  const unsigned char *inbufstart,
                                  const unsigned char **inbufp,
                                  const unsigned char *inbufend,
                                  unsigned char **outbufstart,
                                  size_t *irreversible);
libc_hidden_proto (__gconv_transliterate)

/* If NAME is an codeset alias expand it.  */
extern int __gconv_compare_alias (const char *name1, const char *name2)
     attribute_hidden;


/* Builtin transformations.  */
#ifdef _LIBC
# define __BUILTIN_TRANSFORM(Name) \
  extern int Name (struct __gconv_step *step,				      \
		   struct __gconv_step_data *data,			      \
		   const unsigned char **inbuf,				      \
		   const unsigned char *inbufend,			      \
		   unsigned char **outbufstart, size_t *irreversible,	      \
		   int do_flush, int consume_incomplete)

__BUILTIN_TRANSFORM (__gconv_transform_ascii_internal);
__BUILTIN_TRANSFORM (__gconv_transform_internal_ascii);
__BUILTIN_TRANSFORM (__gconv_transform_utf8_internal);
__BUILTIN_TRANSFORM (__gconv_transform_internal_utf8);
__BUILTIN_TRANSFORM (__gconv_transform_ucs2_internal);
__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs2);
__BUILTIN_TRANSFORM (__gconv_transform_ucs2reverse_internal);
__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs2reverse);
__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4);
__BUILTIN_TRANSFORM (__gconv_transform_ucs4_internal);
__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4le);
__BUILTIN_TRANSFORM (__gconv_transform_ucs4le_internal);
__BUILTIN_TRANSFORM (__gconv_transform_internal_utf16);
__BUILTIN_TRANSFORM (__gconv_transform_utf16_internal);
# undef __BUITLIN_TRANSFORM

/* Specialized conversion function for a single byte to INTERNAL, recognizing
   only ASCII characters.  */
extern wint_t __gconv_btwoc_ascii (struct __gconv_step *step, unsigned char c);

#endif

__END_DECLS

#endif /* gconv_int.h */
Commit	Line	Data
581c785b	1	/* Copyright (C) 1997-2022 Free Software Foundation, Inc.
e62c19f1	2	This file is part of the GNU C Library.
e62c19f1 UD	3
e62c19f1 UD	4	The GNU C Library is free software; you can redistribute it and/or
41bdb6e2 AJ	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.
e62c19f1 UD	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
41bdb6e2	12	Lesser General Public License for more details.
e62c19f1	13
41bdb6e2	14	You should have received a copy of the GNU Lesser General Public
59ba27a6	15	License along with the GNU C Library; if not, see
5a82c748	16	<https://www.gnu.org/licenses/>. */
e62c19f1 UD	17
	18	#ifndef _GCONV_INT_H
	19	#define _GCONV_INT_H 1
	20
	21	#include "gconv.h"
c5738211	22	#include <stdlib.h> /* For alloca used in macro below. */
6111babe RM	23	#include <ctype.h> /* For __toupper_l used in macro below. */
6111babe RM	24	#include <string.h> /* For strlen et al used in macro below. */
ec999b8e	25	#include <libc-lock.h>
e62c19f1 UD	26
	27	__BEGIN_DECLS
	28
	29
9a321276	30	/* Structure for alias definition. Simply two strings. */
e62c19f1 UD	31	struct gconv_alias
e62c19f1 UD	32	{
17427edd UD	33	char *fromname;
17427edd UD	34	char *toname;
e62c19f1 UD	35	};
	36
	37
0d9f6793 UD	38	/* Structure describing one loaded shared object. This normally are
	39	objects to perform conversation but as a special case the db shared
	40	object is also handled. */
d64b6ad0	41	struct __gconv_loaded_object
0d9f6793	42	{
b79f74cd	43	/* Name of the object. It must be the first structure element. */
0d9f6793 UD	44	const char *name;
	45
	46	/* Reference counter for the db functionality. If no conversion is
	47	needed we unload the db library. */
	48	int counter;
	49
	50	/* The handle for the shared object. */
b3fc5f84	51	void *handle;
0d9f6793 UD	52
0d9f6793 UD	53	/* Pointer to the functions the module defines. */
d64b6ad0 UD	54	__gconv_fct fct;
	55	__gconv_init_fct init_fct;
	56	__gconv_end_fct end_fct;
0d9f6793 UD	57	};
	58
	59
e62c19f1 UD	60	/* Description for an available conversion module. */
	61	struct gconv_module
	62	{
d2dfc5de	63	const char *from_string;
0d9f6793	64	const char *to_string;
e62c19f1	65
fab6d621 UD	66	int cost_hi;
fab6d621 UD	67	int cost_lo;
e62c19f1	68
0d9f6793	69	const char *module_name;
2bd60880 UD	70
	71	struct gconv_module left; / Prefix smaller. */
	72	struct gconv_module same; / List of entries with identical prefix. */
2bd60880	73	struct gconv_module right; / Prefix larger. */
e62c19f1 UD	74	};
	75
	76
91927b7c AS	77	/* The specification of the conversion that needs to be performed. */
	78	struct gconv_spec
	79	{
	80	char *fromcode;
	81	char *tocode;
	82	bool translit;
	83	bool ignore;
	84	};
	85
c90a2db6 UD	86	/* Flags for `gconv_open'. */
	87	enum
	88	{
	89	GCONV_AVOID_NOCONV = 1 << 0
	90	};
	91
7b503bcc UD	92	/* When GCONV_AVOID_NOCONV is set and no conversion is needed,
	93	__GCONV_NULCONV should be returned. */
	94	enum
	95	{
	96	__GCONV_NULCONV = -1
	97	};
c90a2db6	98
e62c19f1 UD	99	/* Global variables. */
	100
	101	/* Database of alias names. */
230491f0	102	extern void *__gconv_alias_db attribute_hidden;
e62c19f1 UD	103
e62c19f1 UD	104	/* Array with available modules. */
230491f0	105	extern struct gconv_module *__gconv_modules_db attribute_hidden;
e62c19f1	106
6b98979f	107	/* Value of the GCONV_PATH environment variable. */
aa32f798	108	extern const char *__gconv_path_envvar attribute_hidden;
6b98979f	109
9e26f129	110	/* Lock for the conversion database content. */
6f8a7dff	111	__libc_lock_define (extern, __gconv_lock attribute_hidden)
9e26f129	112
e62c19f1	113
17c389fc UD	114	/* The gconv functions expects the name to be in upper case and complete,
17c389fc UD	115	including the trailing slashes if necessary. */
323fb88d	116	#define norm_add_slashes(str,suffix) \
17c389fc UD	117	({ \
	118	const char *cp = (str); \
	119	char *result; \
	120	char *tmp; \
	121	size_t cnt = 0; \
db2f05ba	122	const size_t suffix_len = strlen (suffix); \
17c389fc UD	123	\
	124	while (*cp != '\0') \
	125	if (*cp++ == '/') \
	126	++cnt; \
	127	\
c5738211	128	tmp = result = __alloca (cp - (str) + 3 + suffix_len); \
17c389fc UD	129	cp = (str); \
17c389fc UD	130	while (*cp != '\0') \
4b5b009c	131	tmp++ = __toupper_l (cp++, _nl_C_locobj_ptr); \
17c389fc UD	132	if (cnt < 2) \
	133	{ \
	134	*tmp++ = '/'; \
	135	if (cnt < 1) \
323fb88d UD	136	{ \
323fb88d UD	137	*tmp++ = '/'; \
db2f05ba	138	if (suffix_len != 0) \
323fb88d UD	139	tmp = __mempcpy (tmp, suffix, suffix_len); \
323fb88d UD	140	} \
17c389fc UD	141	} \
	142	*tmp = '\0'; \
	143	result; \
	144	})
	145
	146
91927b7c AS	147	/* Return in *HANDLE, a decriptor for the transformation. The function expects
	148	the specification of the transformation in the structure pointed to by
	149	CONV_SPEC. It only reads CONV_SPEC and does not take ownership of it. /
	150	extern int __gconv_open (struct gconv_spec *conv_spec,
	151	__gconv_t *handle, int flags);
	152	libc_hidden_proto (__gconv_open)
e62c19f1	153
7d4ec75e AS	154	/* This function accepts the charset names of the source and destination of the
	155	conversion and populates *conv_spec with an equivalent conversion
	156	specification that may later be used by __gconv_open. The charset names
	157	might contain options in the form of suffixes that alter the conversion,
	158	e.g. "ISO-10646/UTF-8/TRANSLIT". It processes the charset names, ignoring
	159	and truncating any suffix options in fromcode, and processing and truncating
	160	any suffix options in tocode. Supported suffix options ("TRANSLIT" or
	161	"IGNORE") when found in tocode lead to the corresponding flag in *conv_spec
	162	to be set to true. Unrecognized suffix options are silently discarded. If
	163	the function succeeds, it returns conv_spec back to the caller. It returns
	164	NULL upon failure. */
	165	extern struct gconv_spec *
	166	__gconv_create_spec (struct gconv_spec conv_spec, const char fromcode,
	167	const char *tocode);
	168	libc_hidden_proto (__gconv_create_spec)
	169
	170	/* This function frees all heap memory allocated by __gconv_create_spec. */
	171	extern void
	172	__gconv_destroy_spec (struct gconv_spec *conv_spec);
	173	libc_hidden_proto (__gconv_destroy_spec)
	174
e62c19f1	175	/* Free resources associated with transformation descriptor CD. */
8bcdb7e0 L	176	extern int __gconv_close (__gconv_t cd)
8bcdb7e0 L	177	attribute_hidden;
e62c19f1 UD	178
	179	/* Transform at most INBYTESLEFT bytes from buffer starting at INBUF
	180	according to rules described by CD and place up to *OUTBYTESLEFT
63e04088	181	bytes in buffer starting at *OUTBUF. Return number of non-identical
38677ace	182	conversions in IRREVERSIBLE if this pointer is not null. /
55985355 UD	183	extern int __gconv (__gconv_t cd, const unsigned char **inbuf,
55985355 UD	184	const unsigned char inbufend, unsigned char *outbuf,
8bcdb7e0 L	185	unsigned char outbufend, size_t irreversible)
8bcdb7e0 L	186	attribute_hidden;
e62c19f1 UD	187
	188	/* Return in HANDLE a pointer to an array with NSTEPS elements describing
	189	the single steps necessary for transformation from FROMSET to TOSET. */
55985355 UD	190	extern int __gconv_find_transform (const char toset, const char fromset,
55985355 UD	191	struct __gconv_step **handle,
8bcdb7e0 L	192	size_t *nsteps, int flags)
8bcdb7e0 L	193	attribute_hidden;
e62c19f1	194
6b98979f UD	195	/* Search for transformation in cache data. */
	196	extern int __gconv_lookup_cache (const char toset, const char fromset,
	197	struct __gconv_step *handle, size_t nsteps,
8bcdb7e0 L	198	int flags)
8bcdb7e0 L	199	attribute_hidden;
6b98979f	200
9a018f6c UD	201	/* Compare the two name for whether they are after alias expansion the
	202	same. This function uses the cache and fails if none is
	203	loaded. */
	204	extern int __gconv_compare_alias_cache (const char name1, const char name2,
8bcdb7e0 L	205	int *result)
8bcdb7e0 L	206	attribute_hidden;
9a018f6c	207
6b98979f	208	/* Free data associated with a step's structure. */
8bcdb7e0 L	209	extern void __gconv_release_step (struct __gconv_step *step)
8bcdb7e0 L	210	attribute_hidden;
6b98979f	211
c5288d37 AS	212	/* Read all the configuration data and cache it if not done so already. */
c5288d37 AS	213	extern void __gconv_load_conf (void) attribute_hidden;
e62c19f1	214
6b98979f	215	/* Try to read module cache file. */
8bcdb7e0	216	extern int __gconv_load_cache (void) attribute_hidden;
6b98979f	217
230491f0 UD	218	/* Retrieve pointer to internal cache. */
	219	extern void *__gconv_get_cache (void);
	220
	221	/* Retrieve pointer to internal module database. */
	222	extern struct gconv_module *__gconv_get_modules_db (void);
	223
	224	/* Retrieve pointer to internal alias database. */
	225	extern void *__gconv_get_alias_db (void);
	226
e62c19f1	227	/* Comparison function to search alias. */
dff07c4b UD	228	extern int __gconv_alias_compare (const void p1, const void p2)
dff07c4b UD	229	attribute_hidden;
e62c19f1 UD	230
	231	/* Clear reference to transformation step implementations which might
	232	cause the code to be unloaded. */
55985355	233	extern int __gconv_close_transform (struct __gconv_step *steps,
8bcdb7e0 L	234	size_t nsteps)
8bcdb7e0 L	235	attribute_hidden;
e62c19f1	236
0db59742 UD	237	/* Free all resources allocated for the transformation record when
0db59742 UD	238	using the cache. */
8bcdb7e0 L	239	extern void __gconv_release_cache (struct __gconv_step *steps, size_t nsteps)
8bcdb7e0 L	240	attribute_hidden;
0db59742	241
e62c19f1 UD	242	/* Load shared object named by NAME. If already loaded increment reference
e62c19f1 UD	243	count. */
8bcdb7e0 L	244	extern struct __gconv_loaded_object __gconv_find_shlib (const char name)
8bcdb7e0 L	245	attribute_hidden;
e62c19f1 UD	246
	247	/* Release shared object. If no further reference is available unload
	248	the object. */
8bcdb7e0 L	249	extern void __gconv_release_shlib (struct __gconv_loaded_object *handle)
8bcdb7e0 L	250	attribute_hidden;
e62c19f1 UD	251
e62c19f1 UD	252	/* Fill STEP with information about builtin module with NAME. */
55985355	253	extern void __gconv_get_builtin_trans (const char *name,
8bcdb7e0 L	254	struct __gconv_step *step)
8bcdb7e0 L	255	attribute_hidden;
e62c19f1	256
7ac6fad9 FW	257	/* Transliteration using the locale's data. */
	258	extern int __gconv_transliterate (struct __gconv_step *step,
	259	struct __gconv_step_data *step_data,
	260	const unsigned char *inbufstart,
	261	const unsigned char **inbufp,
	262	const unsigned char *inbufend,
	263	unsigned char **outbufstart,
	264	size_t *irreversible);
ba7b4d29	265	libc_hidden_proto (__gconv_transliterate)
e62c19f1	266
dd9423a6	267	/* If NAME is an codeset alias expand it. */
8bcdb7e0 L	268	extern int __gconv_compare_alias (const char name1, const char name2)
8bcdb7e0 L	269	attribute_hidden;
dd9423a6 UD	270
dd9423a6 UD	271
e62c19f1 UD	272	/* Builtin transformations. */
e62c19f1 UD	273	#ifdef _LIBC
f9ad060c	274	# define __BUILTIN_TRANSFORM(Name) \
55985355 UD	275	extern int Name (struct __gconv_step *step, \
	276	struct __gconv_step_data *data, \
	277	const unsigned char **inbuf, \
f1d5c60d UD	278	const unsigned char *inbufend, \
	279	unsigned char *outbufstart, size_t irreversible, \
	280	int do_flush, int consume_incomplete)
e62c19f1	281
f9ad060c UD	282	__BUILTIN_TRANSFORM (__gconv_transform_ascii_internal);
	283	__BUILTIN_TRANSFORM (__gconv_transform_internal_ascii);
	284	__BUILTIN_TRANSFORM (__gconv_transform_utf8_internal);
	285	__BUILTIN_TRANSFORM (__gconv_transform_internal_utf8);
	286	__BUILTIN_TRANSFORM (__gconv_transform_ucs2_internal);
	287	__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs2);
	288	__BUILTIN_TRANSFORM (__gconv_transform_ucs2reverse_internal);
	289	__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs2reverse);
	290	__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4);
	291	__BUILTIN_TRANSFORM (__gconv_transform_ucs4_internal);
	292	__BUILTIN_TRANSFORM (__gconv_transform_internal_ucs4le);
	293	__BUILTIN_TRANSFORM (__gconv_transform_ucs4le_internal);
	294	__BUILTIN_TRANSFORM (__gconv_transform_internal_utf16);
	295	__BUILTIN_TRANSFORM (__gconv_transform_utf16_internal);
	296	# undef __BUITLIN_TRANSFORM
	297
	298	/* Specialized conversion function for a single byte to INTERNAL, recognizing
	299	only ASCII characters. */
	300	extern wint_t __gconv_btwoc_ascii (struct __gconv_step *step, unsigned char c);
e62c19f1	301
e62c19f1 UD	302	#endif
	303
	304	__END_DECLS
	305
	306	#endif /* gconv_int.h */