Rev 4921 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * Copyright (c) 1990 The Regents of the University of California. |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms are permitted |
||
| 6 | * provided that the above copyright notice and this paragraph are |
||
| 7 | * duplicated in all such forms and that any documentation, |
||
| 8 | * advertising materials, and other materials related to such |
||
| 9 | * distribution and use acknowledge that the software was developed |
||
| 10 | * by the University of California, Berkeley. The name of the |
||
| 11 | * University may not be used to endorse or promote products derived |
||
| 12 | * from this software without specific prior written permission. |
||
| 13 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR |
||
| 14 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED |
||
| 15 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. |
||
| 16 | */ |
||
| 17 | |||
| 18 | /* |
||
| 19 | FUNCTION |
||
| 6099 | serge | 20 | < |
| 4349 | Serge | 21 | |
| 22 | INDEX |
||
| 23 | clearerr |
||
| 6099 | serge | 24 | INDEX |
| 25 | clearerr_unlocked |
||
| 4349 | Serge | 26 | |
| 27 | ANSI_SYNOPSIS |
||
| 28 | #include |
||
| 29 | void clearerr(FILE *<[fp]>); |
||
| 30 | |||
| 6099 | serge | 31 | #define _BSD_SOURCE |
| 32 | #include |
||
| 33 | void clearerr_unlocked(FILE *<[fp]>); |
||
| 34 | |||
| 4349 | Serge | 35 | TRAD_SYNOPSIS |
| 36 | #include |
||
| 37 | void clearerr(<[fp]>) |
||
| 38 | FILE *<[fp]>; |
||
| 39 | |||
| 6099 | serge | 40 | #define _BSD_SOURCE |
| 41 | #include |
||
| 42 | void clearerr_unlocked(<[fp]>) |
||
| 43 | FILE *<[fp]>; |
||
| 44 | |||
| 4349 | Serge | 45 | DESCRIPTION |
| 46 | The < |
||
| 47 | pointer <[fp]>, to record whether any read or write errors have |
||
| 48 | occurred on the associated file or stream. Similarly, it maintains an |
||
| 49 | end-of-file indicator to record whether there is no more data in the |
||
| 50 | file. |
||
| 51 | |||
| 52 | Use < |
||
| 53 | |||
| 54 | See < |
||
| 55 | |||
| 6099 | serge | 56 | < |
| 57 | < |
||
| 58 | protected by flockfile() (or ftrylockfile()) and funlockfile(). This |
||
| 59 | function may safely be used in a multi-threaded program if and only |
||
| 60 | if they are called while the invoking thread owns the (FILE *) |
||
| 61 | object, as is the case after a successful call to the flockfile() or |
||
| 62 | ftrylockfile() functions. If threads are disabled, then |
||
| 63 | < |
||
| 4349 | Serge | 64 | |
| 65 | RETURNS |
||
| 66 | < |
||
| 67 | |||
| 68 | PORTABILITY |
||
| 69 | ANSI C requires < |
||
| 70 | |||
| 6099 | serge | 71 | < |
| 72 | |||
| 4349 | Serge | 73 | No supporting OS subroutines are required. |
| 74 | */ |
||
| 75 | |||
| 76 | #include <_ansi.h> |
||
| 77 | #include |
||
| 78 | #include "local.h" |
||
| 79 | |||
| 80 | /* A subroutine version of the macro clearerr. */ |
||
| 81 | |||
| 82 | #undef clearerr |
||
| 83 | |||
| 84 | _VOID |
||
| 85 | _DEFUN(clearerr, (fp), |
||
| 86 | FILE * fp) |
||
| 87 | { |
||
| 88 | CHECK_INIT(_REENT, fp); |
||
| 4921 | Serge | 89 | _newlib_flockfile_start (fp); |
| 4349 | Serge | 90 | __sclearerr (fp); |
| 4921 | Serge | 91 | _newlib_flockfile_end (fp); |
| 4349 | Serge | 92 | } |