forked from KolibriOS/kolibrios
125 lines
3.4 KiB
C
125 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that the above copyright notice and this paragraph are
|
|
* duplicated in all such forms and that any documentation,
|
|
* advertising materials, and other materials related to such
|
|
* distribution and use acknowledge that the software was developed
|
|
* by the University of California, Berkeley. The name of the
|
|
* University may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*/
|
|
|
|
/*
|
|
FUNCTION
|
|
<<putc>>---write a character (macro)
|
|
|
|
INDEX
|
|
putc
|
|
INDEX
|
|
_putc_r
|
|
|
|
ANSI_SYNOPSIS
|
|
#include <stdio.h>
|
|
int putc(int <[ch]>, FILE *<[fp]>);
|
|
|
|
#include <stdio.h>
|
|
int _putc_r(struct _reent *<[ptr]>, int <[ch]>, FILE *<[fp]>);
|
|
|
|
TRAD_SYNOPSIS
|
|
#include <stdio.h>
|
|
int putc(<[ch]>, <[fp]>)
|
|
int <[ch]>;
|
|
FILE *<[fp]>;
|
|
|
|
#include <stdio.h>
|
|
int _putc_r(<[ptr]>, <[ch]>, <[fp]>)
|
|
struct _reent *<[ptr]>;
|
|
int <[ch]>;
|
|
FILE *<[fp]>;
|
|
|
|
DESCRIPTION
|
|
<<putc>> is a macro, defined in <<stdio.h>>. <<putc>>
|
|
writes the argument <[ch]> to the file or stream identified by
|
|
<[fp]>, after converting it from an <<int>> to an <<unsigned char>>.
|
|
|
|
If the file was opened with append mode (or if the stream cannot
|
|
support positioning), then the new character goes at the end of the
|
|
file or stream. Otherwise, the new character is written at the
|
|
current value of the position indicator, and the position indicator
|
|
advances by one.
|
|
|
|
For a subroutine version of this macro, see <<fputc>>.
|
|
|
|
The <<_putc_r>> function is simply the reentrant version of
|
|
<<putc>> that takes an additional reentrant structure argument: <[ptr]>.
|
|
|
|
RETURNS
|
|
If successful, <<putc>> returns its argument <[ch]>. If an error
|
|
intervenes, the result is <<EOF>>. You can use `<<ferror(<[fp]>)>>' to
|
|
query for errors.
|
|
|
|
PORTABILITY
|
|
ANSI C requires <<putc>>; it suggests, but does not require, that
|
|
<<putc>> be implemented as a macro. The standard explicitly permits
|
|
macro implementations of <<putc>> to use the <[fp]> argument more than once;
|
|
therefore, in a portable program, you should not use an expression
|
|
with side effects as this argument.
|
|
|
|
Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
|
|
<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
|
|
*/
|
|
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
|
static char sccsid[] = "%W% (Berkeley) %G%";
|
|
#endif /* LIBC_SCCS and not lint */
|
|
|
|
#include <_ansi.h>
|
|
#include <stdio.h>
|
|
#include "local.h"
|
|
|
|
/*
|
|
* A subroutine version of the macro putc.
|
|
*/
|
|
|
|
#undef putc
|
|
|
|
int
|
|
_DEFUN(_putc_r, (ptr, c, fp),
|
|
struct _reent *ptr _AND
|
|
int c _AND
|
|
register FILE *fp)
|
|
{
|
|
int result;
|
|
CHECK_INIT (ptr, fp);
|
|
_flockfile (fp);
|
|
result = __sputc_r (ptr, c, fp);
|
|
_funlockfile (fp);
|
|
return result;
|
|
}
|
|
|
|
#ifndef _REENT_ONLY
|
|
int
|
|
_DEFUN(putc, (c, fp),
|
|
int c _AND
|
|
register FILE *fp)
|
|
{
|
|
#if !defined(PREFER_SIZE_OVER_SPEED) && !defined(__OPTIMIZE_SIZE__)
|
|
int result;
|
|
CHECK_INIT (_REENT, fp);
|
|
_flockfile (fp);
|
|
result = __sputc_r (_REENT, c, fp);
|
|
_funlockfile (fp);
|
|
return result;
|
|
#else
|
|
return _putc_r (_REENT, c, fp);
|
|
#endif
|
|
}
|
|
#endif /* !_REENT_ONLY */
|
|
|