OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [putchar.c] - Blame information for rev 258

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 207 jeremybenn
/*
2
 * Copyright (c) 1990 The Regents of the University of California.
3
 * All rights reserved.
4
 *
5
 * Redistribution and use in source and binary forms are permitted
6
 * provided that the above copyright notice and this paragraph are
7
 * duplicated in all such forms and that any documentation,
8
 * advertising materials, and other materials related to such
9
 * distribution and use acknowledge that the software was developed
10
 * by the University of California, Berkeley.  The name of the
11
 * University may not be used to endorse or promote products derived
12
 * from this software without specific prior written permission.
13
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
14
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
15
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
16
 */
17
 
18
/*
19
FUNCTION
20
<<putchar>>---write a character (macro)
21
 
22
INDEX
23
        putchar
24
INDEX
25
        _putchar_r
26
 
27
ANSI_SYNOPSIS
28
        #include <stdio.h>
29
        int putchar(int <[ch]>);
30
 
31
        int _putchar_r(struct _reent *<[reent]>, int <[ch]>);
32
 
33
TRAD_SYNOPSIS
34
        #include <stdio.h>
35
        int putchar(<[ch]>)
36
        int <[ch]>;
37
 
38
        int _putchar_r(<[reent]>, <[ch]>)
39
        struct _reent *<[reent]>;
40
        int <[ch]>;
41
 
42
DESCRIPTION
43
<<putchar>> is a macro, defined in <<stdio.h>>.  <<putchar>>
44
writes its argument to the standard output stream,
45
after converting it from an <<int>> to an <<unsigned char>>.
46
 
47
The alternate function <<_putchar_r>> is a reentrant version.  The
48
extra argument <[reent]> is a pointer to a reentrancy structure.
49
 
50
RETURNS
51
If successful, <<putchar>> returns its argument <[ch]>.  If an error
52
intervenes, the result is <<EOF>>.  You can use `<<ferror(stdin)>>' to
53
query for errors.
54
 
55
PORTABILITY
56
ANSI C requires <<putchar>>; it suggests, but does not require, that
57
<<putchar>> be implemented as a macro.
58
 
59
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
60
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
61
*/
62
 
63
#if defined(LIBC_SCCS) && !defined(lint)
64
static char sccsid[] = "%W% (Berkeley) %G%";
65
#endif /* LIBC_SCCS and not lint */
66
 
67
/*
68
 * A subroutine version of the macro putchar.
69
 */
70
 
71
#include <_ansi.h>
72
#include <reent.h>
73
#include <stdio.h>
74
#include "local.h"
75
 
76
#undef putchar
77
 
78
int
79
_DEFUN(_putchar_r, (ptr, c),
80
       struct _reent *ptr _AND
81
       int c)
82
{
83
  _REENT_SMALL_CHECK_INIT (ptr);
84
  return _putc_r (ptr, c, _stdout_r (ptr));
85
}
86
 
87
#ifndef _REENT_ONLY
88
 
89
int
90
_DEFUN(putchar, (c),
91
       int c)
92
{
93
  _REENT_SMALL_CHECK_INIT (_REENT);
94
  return _putc_r (_REENT, c, _stdout_r (_REENT));
95
}
96
 
97
#endif

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.