iconv.h
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- /* Copyright (C) 1999-2001 Free Software Foundation, Inc.
- This file is part of the GNU LIBICONV Library.
- The GNU LIBICONV Library is free software; you can redistribute it
- and/or modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either version 2
- of the License, or (at your option) any later version.
- The GNU LIBICONV 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
- Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU LIBICONV Library; see the file COPYING.LIB.
- If not, write to the Free Software Foundation, Inc., 59 Temple Place -
- Suite 330, Boston, MA 02111-1307, USA. */
- /* When installed, this file is called "iconv.h". */
- #ifndef _LIBICONV_H
- #define _LIBICONV_H
- #define _LIBICONV_VERSION 0x0107 /* version number: (major<<8) + minor */
- #ifdef BUILDING_LIBICONV
- #define LIBICONV_DLL_EXPORTED __declspec(dllexport)
- #else
- /* #define LIBICONV_DLL_EXPORTED __declspec(dllimport) */
- #define LIBICONV_DLL_EXPORTED
- #endif
- extern LIBICONV_DLL_EXPORTED int _libiconv_version; /* Likewise */
- /* We would like to #include any system header file which could define
- iconv_t, 1. in order to eliminate the risk that the user gets compilation
- errors because some other system header file includes /usr/include/iconv.h
- which defines iconv_t or declares iconv after this file, 2. when compiling
- for LIBICONV_PLUG, we need the proper iconv_t type in order to produce
- binary compatible code.
- But gcc's #include_next is not portable. Thus, once libiconv's iconv.h
- has been installed in /usr/local/include, there is no way any more to
- include the original /usr/include/iconv.h. We simply have to get away
- without it.
- Ad 1. The risk that a system header file does
- #include "iconv.h" or #include_next "iconv.h"
- is small. They all do #include <iconv.h>.
- Ad 2. The iconv_t type is a pointer type in all cases I have seen. (It
- has to be a scalar type because (iconv_t)(-1) is a possible return value
- from iconv_open().) */
- /* Define iconv_t ourselves. */
- #undef iconv_t
- #define iconv_t libiconv_t
- typedef void* iconv_t;
- /* Get size_t declaration. */
- #include <stddef.h>
- /* Get errno declaration and values. */
- #include <errno.h>
- /* Some systems, like SunOS 4, don't have EILSEQ. On these systems, define
- EILSEQ ourselves, but don't define it as EINVAL, because iconv() callers
- want to distinguish EINVAL and EILSEQ. */
- #ifndef EILSEQ
- #define EILSEQ ENOENT
- #endif
- #ifdef __cplusplus
- extern "C" {
- #endif
- /* Allocates descriptor for code conversion from encoding `fromcode' to
- encoding `tocode'. */
- #ifndef LIBICONV_PLUG
- #define iconv_open libiconv_open
- #endif
- extern LIBICONV_DLL_EXPORTED iconv_t iconv_open (const char* tocode, const char* fromcode);
- /* Converts, using conversion descriptor `cd', at most `*inbytesleft' bytes
- starting at `*inbuf', writing at most `*outbytesleft' bytes starting at
- `*outbuf'.
- Decrements `*inbytesleft' and increments `*inbuf' by the same amount.
- Decrements `*outbytesleft' and increments `*outbuf' by the same amount. */
- #ifndef LIBICONV_PLUG
- #define iconv libiconv
- #endif
- extern LIBICONV_DLL_EXPORTED size_t iconv (iconv_t cd, const char* * inbuf, size_t *inbytesleft, char* * outbuf, size_t *outbytesleft);
- /* Frees resources allocated for conversion descriptor `cd'. */
- #ifndef LIBICONV_PLUG
- #define iconv_close libiconv_close
- #endif
- extern LIBICONV_DLL_EXPORTED int iconv_close (iconv_t cd);
- #ifndef LIBICONV_PLUG
- /* Nonstandard extensions. */
- /* Control of attributes. */
- #define iconvctl libiconvctl
- extern LIBICONV_DLL_EXPORTED int iconvctl (iconv_t cd, int request, void* argument);
- /* Requests for iconvctl. */
- #define ICONV_TRIVIALP 0 /* int *argument */
- #define ICONV_GET_TRANSLITERATE 1 /* int *argument */
- #define ICONV_SET_TRANSLITERATE 2 /* const int *argument */
- #endif
- #ifdef __cplusplus
- }
- #endif
- #endif /* _LIBICONV_H */