68 lines
1.7 KiB
C
68 lines
1.7 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
|
||
|
|
<<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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if defined(LIBC_SCCS) && !defined(lint)
|
||
|
|
static char sccsid[] = "%W% (Berkeley) %G%";
|
||
|
|
#endif /* LIBC_SCCS and not lint */
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
/* A subroutine version of the macro ferror. */
|
||
|
|
|
||
|
|
#undef ferror
|
||
|
|
|
||
|
|
int
|
||
|
|
_DEFUN (ferror, (fp),
|
||
|
|
FILE * fp)
|
||
|
|
{
|
||
|
|
return __sferror (fp);
|
||
|
|
}
|