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[/] [openrisc/] [trunk/] [gnu-old/] [newlib-1.17.0/] [newlib/] [libc/] [stdio/] [clearerr.c] - Rev 158
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/* * 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); }
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