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/* -*- Mode: C -*- */
/* stream.h --- customizable stream routines
* Copyright (C) 1998, 1999, 2000, 2002 Gary V. Vaughan
* Originally by Gary V. Vaughan, 1998
* This file is part of Snprintfv
*
* Snprintfv is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* Snprintfv program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* As a special exception to the GNU General Public License, if you
* distribute this file as part of a program that also links with and
* uses the libopts library from AutoGen, you may include it under
* the same distribution terms used by the libopts library.
*/
/* Code: */
#ifndef STREAM_H
#define STREAM_H 1
#define STREAM_READABLE (1 << 0)
#define STREAM_WRITABLE (1 << 1)
/**
* SNV_UNLIMITED:
* Used to denote that there is no upper limit to the number of characters
* that can safely be written to a stream.
**/
#define SNV_UNLIMITED (~0UL)
#ifdef __cplusplus
extern "C"
{
#if 0
/* This brace is so that emacs can still indent properly: */ }
#endif
#endif /* __cplusplus */
/**
* STREAM:
* Data type used to pass details of streams between functions,
* much like stdio's %FILE, but more flexible. A %STREAM can be uni- or
* bi-directional depending on how it is initialised.
**/
typedef struct stream STREAM;
/**
* StreamPut:
* @ch: The character to write to @stream cast to an int.
* @stream: The stream being written to.
*
* Type of the function to put a character in a writeable stream.
*
* Return value:
* The function should return the character written to the
* stream, cast to an int if it was written successfully, or
* else %EOF, if the write failed.
**/
typedef int (*StreamPut) (int ch, STREAM * stream);
/**
* StreamGet:
* @stream: The stream being read from.
*
* Type of the function to get a character from a readable stream.
*
* Return value:
* The function should return the character read from the
* stream, cast to an int if it was read successfully, or
* else %EOF, if the read failed.
**/
typedef int (*StreamGet) (STREAM * stream);
@protos stream.c
#ifdef __cplusplus
#if 0
/* This brace is so that emacs can still indent properly: */
{
#endif
}
#endif /* __cplusplus */
#endif /* STREAM_H */
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