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'\" et
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.TH REWIND "3P" 2013 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.SH PROLOG
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This manual page is part of the POSIX Programmer's Manual.
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The Linux implementation of this interface may differ (consult
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the corresponding Linux manual page for details of Linux behavior),
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or the interface may not be implemented on Linux.
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.SH NAME
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rewind
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\(em reset the file position indicator in a stream
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.SH SYNOPSIS
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.LP
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.nf
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#include <stdio.h>
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.P
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void rewind(FILE *\fIstream\fP);
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.fi
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.SH DESCRIPTION
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The functionality described on this reference page is aligned with the
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ISO\ C standard. Any conflict between the requirements described here and the
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ISO\ C standard is unintentional. This volume of POSIX.1\(hy2008 defers to the ISO\ C standard.
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.P
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The call:
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.sp
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.RS 4
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.nf
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\fB
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rewind(stream)
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.fi \fR
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.P
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.RE
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.P
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shall be equivalent to:
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.sp
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.RS 4
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.nf
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\fB
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(void) fseek(stream, 0L, SEEK_SET)
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.fi \fR
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.P
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.RE
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.P
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except that
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\fIrewind\fR()
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shall also clear the error indicator.
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.P
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Since
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\fIrewind\fR()
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does not return a value, an application wishing to detect errors should
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clear
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.IR errno ,
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then call
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\fIrewind\fR(),
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and if
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.IR errno
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is non-zero, assume an error has occurred.
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.SH "RETURN VALUE"
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The
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\fIrewind\fR()
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function shall not return a value.
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.SH ERRORS
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Refer to
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.IR "\fIfseek\fR\^(\|)"
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with the exception of
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.BR [EINVAL]
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which does not apply.
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.LP
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.IR "The following sections are informative."
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.SH EXAMPLES
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None.
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.SH "APPLICATION USAGE"
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None.
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.SH RATIONALE
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None.
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.SH "FUTURE DIRECTIONS"
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None.
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.SH "SEE ALSO"
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.IR "Section 2.5" ", " "Standard I/O Streams",
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.IR "\fIfseek\fR\^(\|)"
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.P
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The Base Definitions volume of POSIX.1\(hy2008,
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.IR "\fB<stdio.h>\fP"
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 7, Copyright (C) 2013 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group.
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(This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.unix.org/online.html .
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Any typographical or formatting errors that appear
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in this page are most likely
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to have been introduced during the conversion of the source files to
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man page format. To report such errors, see
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https://www.kernel.org/doc/man-pages/reporting_bugs.html .
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