| 0,0 → 1,71 |
|---|
| /* |
| * 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 |
| <<clearerr>>---clear file or stream error indicator |
| |
| INDEX |
| clearerr |
| |
| ANSI_SYNOPSIS |
| #include <stdio.h> |
| void clearerr(FILE *<[fp]>); |
| |
| TRAD_SYNOPSIS |
| #include <stdio.h> |
| void clearerr(<[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. Similarly, it maintains an |
| end-of-file indicator to record whether there is no more data in the |
| file. |
| |
| Use <<clearerr>> to reset both of these indicators. |
| |
| See <<ferror>> and <<feof>> to query the two indicators. |
| |
| |
| RETURNS |
| <<clearerr>> does not return a result. |
| |
| PORTABILITY |
| ANSI C requires <<clearerr>>. |
| |
| No supporting OS subroutines are required. |
| */ |
| |
| #include <_ansi.h> |
| #include <stdio.h> |
| #include "local.h" |
| |
| /* A subroutine version of the macro clearerr. */ |
| |
| #undef clearerr |
| |
| _VOID |
| _DEFUN(clearerr, (fp), |
| FILE * fp) |
| { |
| CHECK_INIT(_REENT, fp); |
| _flockfile (fp); |
| __sclearerr (fp); |
| _funlockfile (fp); |
| } |