0,0 → 1,74 |
/* |
* 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 |
<<ferror>>---test whether read/write error has occurred |
|
INDEX |
ferror |
|
ANSI_SYNOPSIS |
#include <stdio.h> |
int ferror(FILE *<[fp]>); |
|
TRAD_SYNOPSIS |
#include <stdio.h> |
int ferror(<[fp]>) |
FILE *<[fp]>; |
|
DESCRIPTION |
The <<stdio>> functions maintain an error indicator with each file |
pointer <[fp]>, to record whether any read or write errors have |
occurred on the associated file or stream. |
Use <<ferror>> to query this indicator. |
|
See <<clearerr>> to reset the error indicator. |
|
RETURNS |
<<ferror>> returns <<0>> if no errors have occurred; it returns a |
nonzero value otherwise. |
|
PORTABILITY |
ANSI C requires <<ferror>>. |
|
No supporting OS subroutines are required. |
*/ |
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#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 ferror. */ |
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#undef ferror |
|
int |
_DEFUN(ferror, (fp), |
FILE * fp) |
{ |
int result; |
CHECK_INIT(_REENT, fp); |
_newlib_flockfile_start (fp); |
result = __sferror (fp); |
_newlib_flockfile_end (fp); |
return result; |
} |