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

/* Copyright (C) 1997-2019 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 _ICONV_H
#define _ICONV_H	1

#include <features.h>
#define __need_size_t
#include <stddef.h>


__BEGIN_DECLS

/* Identifier for conversion method from one codeset to another.  */
typedef void *iconv_t;


/* Allocate descriptor for code conversion from codeset FROMCODE to
   codeset TOCODE.

   This function is a possible cancellation point and therefore not
   marked with __THROW.  */
extern iconv_t iconv_open (const char *__tocode, const char *__fromcode);

/* Convert at most *INBYTESLEFT bytes from *INBUF according to the
   code conversion algorithm specified by CD and place up to
   *OUTBYTESLEFT bytes in buffer at *OUTBUF.  */
extern size_t iconv (iconv_t __cd, char **__restrict __inbuf,
		     size_t *__restrict __inbytesleft,
		     char **__restrict __outbuf,
		     size_t *__restrict __outbytesleft);

/* Free resources allocated for descriptor CD for code conversion.

   This function is a possible cancellation point and therefore not
   marked with __THROW.  */
extern int iconv_close (iconv_t __cd);

__END_DECLS

#endif /* iconv.h */