source: trunk/libs/mini-libc/stdio.h @ 444

Last change on this file since 444 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 3.1 KB
Line 
1/*
2 * stdio.h - User side syscalls definition.
3 *
4 * Author     Alain Greiner (2016,2017)
5 *
6 * Copyright (c) UPMC Sorbonne Universites
7 *
8 * This file is part of ALMOS-MKH.
9 *
10 * ALMOS-MKH is free software; you can redistribute it and/or modify it
11 * under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; version 2.0 of the License.
13 *
14 * ALMOS-MKH is distributed in the hope that it will be useful, but
15 * WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
17 * General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with ALMOS-MKH; if not, write to the Free Software Foundation,
21 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 */
23
24#ifndef _STDIO_H_
25#define _STDIO_H_
26
27#include <almos-mkh/stdio.h>
28
29#define  NULL  (void *)0
30/*********************************************************************************************
31 * This function writes a formated string to the standard "stdout" stream.
32 *********************************************************************************************
33 * @ returns number of characters written if success / returns -1 if failure.
34 ********************************************************************************************/
35int printf( const char * format, ... );
36
37/*********************************************************************************************
38 * This function writes one single character to the standard "stdout" stream.
39 *********************************************************************************************
40 * @ returns written character code if success / returns 0 (EOF) if failure.
41 ********************************************************************************************/
42int putchar( int c );
43
44/*********************************************************************************************
45 * This function returns one single character from the standard "stdin" stream.
46 *********************************************************************************************
47 * @ returns read character code if success / returns 0 (EOF) if failure.
48 ********************************************************************************************/
49int getchar();
50
51/*********************************************************************************************
52 * This function copies a formated string to a fixed size buffer.
53 * it includes the NUL terminating character.
54 * it cheks that the formated string fit in the buffer length.
55 *********************************************************************************************
56 * @ string    :  pointer on target buffer.
57 * @ length    : max bumber of characters in target buffer.
58 * @ format    : formated string.
59 * @ returns number of characters written if success / returns -1 if failure.
60 ********************************************************************************************/
61int snprintf( char         * string,
62              unsigned int   length,
63              const char   * format, ... );
64
65#endif  // _STDIO_H_
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