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newlib/newlib/libc/stdio/ferror.c

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import newlib-2000-02-17 snapshot
2000-02-17 20:39:52 +01:00
/*
* 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 */
2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com> * libc/stdio/asprintf.c libc/stdio/clearerr.c, libc/stdio/fclose.c libc/stdio/fcloseall.c libc/stdio/fdopen.c, libc/stdio/feof.c libc/stdio/ferror.c libc/stdio/fflush.c, libc/stdio/fgetc.c libc/stdio/fgetpos.c libc/stdio/fgets.c, libc/stdio/fileno.c libc/stdio/findfp.c libc/stdio/fiprintf.c, libc/stdio/flags.c libc/stdio/fopen.c libc/stdio/fprintf.c, libc/stdio/fputc.c libc/stdio/fputs.c libc/stdio/fread.c, libc/stdio/freopen.c libc/stdio/fscanf.c libc/stdio/fseek.c, libc/stdio/fseeko.c libc/stdio/fsetpos.c libc/stdio/ftell.c, libc/stdio/ftello.c libc/stdio/fvwrite.c libc/stdio/fwalk.c, libc/stdio/fwrite.c libc/stdio/getc.c libc/stdio/getc_u.c, libc/stdio/getchar.c libc/stdio/getchar_u.c, libc/stdio/getdelim.c libc/stdio/getline.c libc/stdio/gets.c, libc/stdio/getw.c libc/stdio/iprintf.c libc/stdio/local.h, libc/stdio/makebuf.c libc/stdio/mktemp.c libc/stdio/perror.c, libc/stdio/printf.c libc/stdio/putc.c libc/stdio/putc_u.c, libc/stdio/putchar.c libc/stdio/putchar_u.c libc/stdio/puts.c, libc/stdio/putw.c libc/stdio/refill.c libc/stdio/remove.c, libc/stdio/rename.c libc/stdio/rewind.c libc/stdio/rget.c, libc/stdio/scanf.c libc/stdio/setbuf.c libc/stdio/setbuffer.c, libc/stdio/setlinebuf.c libc/stdio/setvbuf.c, libc/stdio/siprintf.c libc/stdio/snprintf.c, libc/stdio/sprintf.c libc/stdio/sscanf.c libc/stdio/stdio.c, libc/stdio/tmpfile.c libc/stdio/tmpnam.c libc/stdio/ungetc.c, libc/stdio/vasprintf.c libc/stdio/vfieeefp.h, libc/stdio/vfprintf.c libc/stdio/vfscanf.c, libc/stdio/vprintf.c libc/stdio/vscanf.c, libc/stdio/vsnprintf.c libc/stdio/vsprintf.c, libc/stdio/vsscanf.c libc/stdio/wbuf.c, libc/stdio/wsetup.c: Perform minor formatting changes. Move copyright notices to top of file, ensure that <_ansi.h> is included, be consistent with open parentheses, use _DEFUN macro, include "local.h" where needed, and remove various compiler warnings.
2004-04-23 22:01:55 +02:00
#include <_ansi.h>
import newlib-2000-02-17 snapshot
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#include <stdio.h>
/* A subroutine version of the macro ferror. */
#undef ferror
int
2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com> * libc/stdio/asprintf.c libc/stdio/clearerr.c, libc/stdio/fclose.c libc/stdio/fcloseall.c libc/stdio/fdopen.c, libc/stdio/feof.c libc/stdio/ferror.c libc/stdio/fflush.c, libc/stdio/fgetc.c libc/stdio/fgetpos.c libc/stdio/fgets.c, libc/stdio/fileno.c libc/stdio/findfp.c libc/stdio/fiprintf.c, libc/stdio/flags.c libc/stdio/fopen.c libc/stdio/fprintf.c, libc/stdio/fputc.c libc/stdio/fputs.c libc/stdio/fread.c, libc/stdio/freopen.c libc/stdio/fscanf.c libc/stdio/fseek.c, libc/stdio/fseeko.c libc/stdio/fsetpos.c libc/stdio/ftell.c, libc/stdio/ftello.c libc/stdio/fvwrite.c libc/stdio/fwalk.c, libc/stdio/fwrite.c libc/stdio/getc.c libc/stdio/getc_u.c, libc/stdio/getchar.c libc/stdio/getchar_u.c, libc/stdio/getdelim.c libc/stdio/getline.c libc/stdio/gets.c, libc/stdio/getw.c libc/stdio/iprintf.c libc/stdio/local.h, libc/stdio/makebuf.c libc/stdio/mktemp.c libc/stdio/perror.c, libc/stdio/printf.c libc/stdio/putc.c libc/stdio/putc_u.c, libc/stdio/putchar.c libc/stdio/putchar_u.c libc/stdio/puts.c, libc/stdio/putw.c libc/stdio/refill.c libc/stdio/remove.c, libc/stdio/rename.c libc/stdio/rewind.c libc/stdio/rget.c, libc/stdio/scanf.c libc/stdio/setbuf.c libc/stdio/setbuffer.c, libc/stdio/setlinebuf.c libc/stdio/setvbuf.c, libc/stdio/siprintf.c libc/stdio/snprintf.c, libc/stdio/sprintf.c libc/stdio/sscanf.c libc/stdio/stdio.c, libc/stdio/tmpfile.c libc/stdio/tmpnam.c libc/stdio/ungetc.c, libc/stdio/vasprintf.c libc/stdio/vfieeefp.h, libc/stdio/vfprintf.c libc/stdio/vfscanf.c, libc/stdio/vprintf.c libc/stdio/vscanf.c, libc/stdio/vsnprintf.c libc/stdio/vsprintf.c, libc/stdio/vsscanf.c libc/stdio/wbuf.c, libc/stdio/wsetup.c: Perform minor formatting changes. Move copyright notices to top of file, ensure that <_ansi.h> is included, be consistent with open parentheses, use _DEFUN macro, include "local.h" where needed, and remove various compiler warnings.
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_DEFUN(ferror, (fp),
FILE * fp)
import newlib-2000-02-17 snapshot
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{
* libc/include/sys/stdio.h: New file. * libc/sys/linux/sys/stdio.h: New file. * libc/include/stdio.h: Add declarations for flockfile, ftrylockfile, and funlockfile. Include <sys/stdio.h>. * libc/stdio/clearerr.c: Add file locking. * libc/stdio/fclose.c: Likewise. * libc/stdio/feof.c: Likewise. * libc/stdio/ferror.c: Likewise. * libc/stdio/fflush.c: Likewise. * libc/stdio/fgetc.c: Likewise. * libc/stdio/fgetpos.c: Likewise. * libc/stdio/fgets.c: Likewise. * libc/stdio/fileno.c: Likewise. * libc/stdio/fputc.c: Likewise. * libc/stdio/fputs.c: Likewise. * libc/stdio/fread.c: Likewise. * libc/stdio/freopen.c: Likewise. * libc/stdio/fseek.c: Likewise. * libc/stdio/ftell.c: Likewise. * libc/stdio/fwrite.c: Likewise. * libc/stdio/getc.c: Likewise. * libc/stdio/putc.c: Likewise. * libc/stdio/setvbuf.c: Likewise. * libc/stdio/ungetc.c: Likewise. * libc/stdio/vfprintf.c: Likewise.
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int result;
2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com> * libc/stdio/asprintf.c libc/stdio/clearerr.c, libc/stdio/fclose.c libc/stdio/fcloseall.c libc/stdio/fdopen.c, libc/stdio/feof.c libc/stdio/ferror.c libc/stdio/fflush.c, libc/stdio/fgetc.c libc/stdio/fgetpos.c libc/stdio/fgets.c, libc/stdio/fileno.c libc/stdio/findfp.c libc/stdio/fiprintf.c, libc/stdio/flags.c libc/stdio/fopen.c libc/stdio/fprintf.c, libc/stdio/fputc.c libc/stdio/fputs.c libc/stdio/fread.c, libc/stdio/freopen.c libc/stdio/fscanf.c libc/stdio/fseek.c, libc/stdio/fseeko.c libc/stdio/fsetpos.c libc/stdio/ftell.c, libc/stdio/ftello.c libc/stdio/fvwrite.c libc/stdio/fwalk.c, libc/stdio/fwrite.c libc/stdio/getc.c libc/stdio/getc_u.c, libc/stdio/getchar.c libc/stdio/getchar_u.c, libc/stdio/getdelim.c libc/stdio/getline.c libc/stdio/gets.c, libc/stdio/getw.c libc/stdio/iprintf.c libc/stdio/local.h, libc/stdio/makebuf.c libc/stdio/mktemp.c libc/stdio/perror.c, libc/stdio/printf.c libc/stdio/putc.c libc/stdio/putc_u.c, libc/stdio/putchar.c libc/stdio/putchar_u.c libc/stdio/puts.c, libc/stdio/putw.c libc/stdio/refill.c libc/stdio/remove.c, libc/stdio/rename.c libc/stdio/rewind.c libc/stdio/rget.c, libc/stdio/scanf.c libc/stdio/setbuf.c libc/stdio/setbuffer.c, libc/stdio/setlinebuf.c libc/stdio/setvbuf.c, libc/stdio/siprintf.c libc/stdio/snprintf.c, libc/stdio/sprintf.c libc/stdio/sscanf.c libc/stdio/stdio.c, libc/stdio/tmpfile.c libc/stdio/tmpnam.c libc/stdio/ungetc.c, libc/stdio/vasprintf.c libc/stdio/vfieeefp.h, libc/stdio/vfprintf.c libc/stdio/vfscanf.c, libc/stdio/vprintf.c libc/stdio/vscanf.c, libc/stdio/vsnprintf.c libc/stdio/vsprintf.c, libc/stdio/vsscanf.c libc/stdio/wbuf.c, libc/stdio/wsetup.c: Perform minor formatting changes. Move copyright notices to top of file, ensure that <_ansi.h> is included, be consistent with open parentheses, use _DEFUN macro, include "local.h" where needed, and remove various compiler warnings.
2004-04-23 22:01:55 +02:00
_flockfile (fp);
* libc/include/sys/stdio.h: New file. * libc/sys/linux/sys/stdio.h: New file. * libc/include/stdio.h: Add declarations for flockfile, ftrylockfile, and funlockfile. Include <sys/stdio.h>. * libc/stdio/clearerr.c: Add file locking. * libc/stdio/fclose.c: Likewise. * libc/stdio/feof.c: Likewise. * libc/stdio/ferror.c: Likewise. * libc/stdio/fflush.c: Likewise. * libc/stdio/fgetc.c: Likewise. * libc/stdio/fgetpos.c: Likewise. * libc/stdio/fgets.c: Likewise. * libc/stdio/fileno.c: Likewise. * libc/stdio/fputc.c: Likewise. * libc/stdio/fputs.c: Likewise. * libc/stdio/fread.c: Likewise. * libc/stdio/freopen.c: Likewise. * libc/stdio/fseek.c: Likewise. * libc/stdio/ftell.c: Likewise. * libc/stdio/fwrite.c: Likewise. * libc/stdio/getc.c: Likewise. * libc/stdio/putc.c: Likewise. * libc/stdio/setvbuf.c: Likewise. * libc/stdio/ungetc.c: Likewise. * libc/stdio/vfprintf.c: Likewise.
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result = __sferror (fp);
2004-04-23 Artem B. Bityuckiy <abitytsky@softminecorp.com> * libc/stdio/asprintf.c libc/stdio/clearerr.c, libc/stdio/fclose.c libc/stdio/fcloseall.c libc/stdio/fdopen.c, libc/stdio/feof.c libc/stdio/ferror.c libc/stdio/fflush.c, libc/stdio/fgetc.c libc/stdio/fgetpos.c libc/stdio/fgets.c, libc/stdio/fileno.c libc/stdio/findfp.c libc/stdio/fiprintf.c, libc/stdio/flags.c libc/stdio/fopen.c libc/stdio/fprintf.c, libc/stdio/fputc.c libc/stdio/fputs.c libc/stdio/fread.c, libc/stdio/freopen.c libc/stdio/fscanf.c libc/stdio/fseek.c, libc/stdio/fseeko.c libc/stdio/fsetpos.c libc/stdio/ftell.c, libc/stdio/ftello.c libc/stdio/fvwrite.c libc/stdio/fwalk.c, libc/stdio/fwrite.c libc/stdio/getc.c libc/stdio/getc_u.c, libc/stdio/getchar.c libc/stdio/getchar_u.c, libc/stdio/getdelim.c libc/stdio/getline.c libc/stdio/gets.c, libc/stdio/getw.c libc/stdio/iprintf.c libc/stdio/local.h, libc/stdio/makebuf.c libc/stdio/mktemp.c libc/stdio/perror.c, libc/stdio/printf.c libc/stdio/putc.c libc/stdio/putc_u.c, libc/stdio/putchar.c libc/stdio/putchar_u.c libc/stdio/puts.c, libc/stdio/putw.c libc/stdio/refill.c libc/stdio/remove.c, libc/stdio/rename.c libc/stdio/rewind.c libc/stdio/rget.c, libc/stdio/scanf.c libc/stdio/setbuf.c libc/stdio/setbuffer.c, libc/stdio/setlinebuf.c libc/stdio/setvbuf.c, libc/stdio/siprintf.c libc/stdio/snprintf.c, libc/stdio/sprintf.c libc/stdio/sscanf.c libc/stdio/stdio.c, libc/stdio/tmpfile.c libc/stdio/tmpnam.c libc/stdio/ungetc.c, libc/stdio/vasprintf.c libc/stdio/vfieeefp.h, libc/stdio/vfprintf.c libc/stdio/vfscanf.c, libc/stdio/vprintf.c libc/stdio/vscanf.c, libc/stdio/vsnprintf.c libc/stdio/vsprintf.c, libc/stdio/vsscanf.c libc/stdio/wbuf.c, libc/stdio/wsetup.c: Perform minor formatting changes. Move copyright notices to top of file, ensure that <_ansi.h> is included, be consistent with open parentheses, use _DEFUN macro, include "local.h" where needed, and remove various compiler warnings.
2004-04-23 22:01:55 +02:00
_funlockfile (fp);
* libc/include/sys/stdio.h: New file. * libc/sys/linux/sys/stdio.h: New file. * libc/include/stdio.h: Add declarations for flockfile, ftrylockfile, and funlockfile. Include <sys/stdio.h>. * libc/stdio/clearerr.c: Add file locking. * libc/stdio/fclose.c: Likewise. * libc/stdio/feof.c: Likewise. * libc/stdio/ferror.c: Likewise. * libc/stdio/fflush.c: Likewise. * libc/stdio/fgetc.c: Likewise. * libc/stdio/fgetpos.c: Likewise. * libc/stdio/fgets.c: Likewise. * libc/stdio/fileno.c: Likewise. * libc/stdio/fputc.c: Likewise. * libc/stdio/fputs.c: Likewise. * libc/stdio/fread.c: Likewise. * libc/stdio/freopen.c: Likewise. * libc/stdio/fseek.c: Likewise. * libc/stdio/ftell.c: Likewise. * libc/stdio/fwrite.c: Likewise. * libc/stdio/getc.c: Likewise. * libc/stdio/putc.c: Likewise. * libc/stdio/setvbuf.c: Likewise. * libc/stdio/ungetc.c: Likewise. * libc/stdio/vfprintf.c: Likewise.
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return result;
import newlib-2000-02-17 snapshot
2000-02-17 20:39:52 +01:00
}