1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/os/ossrv/genericopenlibs/cstdlib/LSTDIO/REWIND.C	Fri Jun 15 03:10:57 2012 +0200
     1.3 @@ -0,0 +1,71 @@
     1.4 +/* REWIND.C
     1.5 + * 
     1.6 + * Portions Copyright (c) 1990-1999 Nokia Corporation and/or its subsidiary(-ies).
     1.7 + * All rights reserved.
     1.8 + */
     1.9 +
    1.10 +/*
    1.11 + * Copyright (c) 1990 The Regents of the University of California.
    1.12 + * All rights reserved.
    1.13 + *
    1.14 + * Redistribution and use in source and binary forms are permitted
    1.15 + * provided that the above copyright notice and this paragraph are
    1.16 + * duplicated in all such forms and that any documentation,
    1.17 + * advertising materials, and other materials related to such
    1.18 + * distribution and use acknowledge that the software was developed
    1.19 + * by the University of California, Berkeley.  The name of the
    1.20 + * University may not be used to endorse or promote products derived
    1.21 + * from this software without specific prior written permission.
    1.22 + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
    1.23 + * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
    1.24 + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
    1.25 + */
    1.26 +
    1.27 +/*
    1.28 +FUNCTION
    1.29 +<<rewind>>---reinitialize a file or stream
    1.30 +
    1.31 +INDEX
    1.32 +	rewind
    1.33 +
    1.34 +ANSI_SYNOPSIS
    1.35 +	#include <stdio.h>
    1.36 +	void rewind(FILE *<[fp]>);
    1.37 +
    1.38 +TRAD_SYNOPSIS
    1.39 +	#include <stdio.h>
    1.40 +	void rewind(<[fp]>)
    1.41 +	FILE *<[fp]>;
    1.42 +
    1.43 +DESCRIPTION
    1.44 +<<rewind>> returns the file position indicator (if any) for the file
    1.45 +or stream identified by <[fp]> to the beginning of the file.  It also
    1.46 +clears any error indicator and flushes any pending output.
    1.47 +
    1.48 +RETURNS
    1.49 +<<rewind>> does not return a result.
    1.50 +
    1.51 +PORTABILITY
    1.52 +ANSI C requires <<rewind>>.
    1.53 +
    1.54 +No supporting OS subroutines are required.
    1.55 +*/
    1.56 +
    1.57 +#include <stdio.h>
    1.58 +/**
    1.59 +Repositions the file pointer to the beginning of a stream.
    1.60 +Sets the file pointer associated with the stream 
    1.61 +to the beginning of the file.
    1.62 +@param Pointer to an open file.
    1.63 +*/
    1.64 +EXPORT_C void
    1.65 +rewind (FILE * fp)
    1.66 +{
    1.67 +  (void) fflush (fp);
    1.68 +  clearerr (fp);
    1.69 +  if (fp->_seek == NULL)
    1.70 +    return;			/* ??? */
    1.71 +  fp->_r = 0;
    1.72 +  fp->_p = fp->_bf._base;
    1.73 +  (void) (*fp->_seek) (fp->_cookie, (fpos_t) 0, SEEK_SET);
    1.74 +}