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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [stdio/] [rewind.c] - Rev 207
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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 <<rewind>>---reinitialize a file or stream INDEX rewind INDEX _rewind_r ANSI_SYNOPSIS #include <stdio.h> void rewind(FILE *<[fp]>); void _rewind_r(struct _reent *<[ptr]>, FILE *<[fp]>); TRAD_SYNOPSIS #include <stdio.h> void rewind(<[fp]>) FILE *<[fp]>; void _rewind_r(<[ptr]>, <[fp]>) struct _reent *<[ptr]>; FILE *<[fp]>; DESCRIPTION <<rewind>> returns the file position indicator (if any) for the file or stream identified by <[fp]> to the beginning of the file. It also clears any error indicator and flushes any pending output. RETURNS <<rewind>> does not return a result. PORTABILITY ANSI C requires <<rewind>>. 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 <_ansi.h> #include <reent.h> #include <stdio.h> _VOID _DEFUN(_rewind_r, (ptr, fp), struct _reent * ptr _AND register FILE * fp) { _CAST_VOID _fseek_r (ptr, fp, 0L, SEEK_SET); clearerr (fp); } #ifndef _REENT_ONLY _VOID _DEFUN(rewind, (fp), register FILE * fp) { _rewind_r (_REENT, fp); } #endif /* !_REENT_ONLY */