1REWIND(3P)                 POSIX Programmer's Manual                REWIND(3P)
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PROLOG

6       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
7       implementation of this interface may differ (consult the  corresponding
8       Linux  manual page for details of Linux behavior), or the interface may
9       not be implemented on Linux.
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NAME

12       rewind — reset the file position indicator in a stream
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SYNOPSIS

15       #include <stdio.h>
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17       void rewind(FILE *stream);
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DESCRIPTION

20       The functionality described on this reference page is aligned with  the
21       ISO C  standard.  Any  conflict between the requirements described here
22       and the ISO C standard is unintentional. This  volume  of  POSIX.1‐2017
23       defers to the ISO C standard.
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25       The call:
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28           rewind(stream)
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30       shall be equivalent to:
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33           (void) fseek(stream, 0L, SEEK_SET)
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35       except that rewind() shall also clear the error indicator.
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37       Since  rewind()  does  not  return  a  value, an application wishing to
38       detect errors should clear errno, then call rewind(), and if  errno  is
39       non-zero, assume an error has occurred.
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RETURN VALUE

42       The rewind() function shall not return a value.
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ERRORS

45       Refer to fseek() with the exception of [EINVAL] which does not apply.
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47       The following sections are informative.
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EXAMPLES

50       None.
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APPLICATION USAGE

53       None.
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RATIONALE

56       None.
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FUTURE DIRECTIONS

59       None.
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SEE ALSO

62       Section 2.5, Standard I/O Streams, fseek()
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64       The Base Definitions volume of POSIX.1‐2017, <stdio.h>
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67       Portions  of  this text are reprinted and reproduced in electronic form
68       from IEEE Std 1003.1-2017, Standard for Information Technology --  Por‐
69       table  Operating System Interface (POSIX), The Open Group Base Specifi‐
70       cations Issue 7, 2018 Edition, Copyright (C) 2018 by the  Institute  of
71       Electrical  and  Electronics Engineers, Inc and The Open Group.  In the
72       event of any discrepancy between this version and the original IEEE and
73       The  Open Group Standard, the original IEEE and The Open Group Standard
74       is the referee document. The original Standard can be  obtained  online
75       at http://www.opengroup.org/unix/online.html .
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77       Any  typographical  or  formatting  errors that appear in this page are
78       most likely to have been introduced during the conversion of the source
79       files  to  man page format. To report such errors, see https://www.ker‐
80       nel.org/doc/man-pages/reporting_bugs.html .
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84IEEE/The Open Group                  2017                           REWIND(3P)
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