The Open Group Base Specifications Issue 7
IEEE Std 1003.1-2008, 2016 Edition
Copyright © 2001-2016 The IEEE and The Open Group

#### NAME

> rewind - reset the file position indicator in a stream

#### SYNOPSIS

> ``#include <stdio.h>
> void rewind(FILE *`stream`);
> ``

#### DESCRIPTION

> [CX] The functionality described on this reference page is aligned with the ISO C standard. Any conflict between the requirements described here and the ISO C standard is unintentional. This volume of POSIX.1-2008 defers to the ISO C standard.

> The call:

>     rewind(stream)

> shall be equivalent to:

>     (void) fseek(stream, 0L, SEEK_SET)

> except that rewind() shall also clear the error indicator.

> [CX] Since rewind() does not return a value, an application wishing to detect errors should clear errno, then call rewind(), and if errno is non-zero, assume an error has occurred.

#### RETURN VALUE

> The rewind() function shall not return a value.

#### ERRORS

> [CX] Refer to fseek with the exception of [EINVAL] which does not apply.

The following sections are informative.

#### EXAMPLES

> None.

#### APPLICATION USAGE

> None.

#### RATIONALE

> None.

#### FUTURE DIRECTIONS

> None.

#### SEE ALSO

> Standard I/O Streams, fseek

> XBD <stdio.h>

#### CHANGE HISTORY

> First released in Issue 1. Derived from Issue 1 of the SVID.

#### Issue 6

> Extensions beyond the ISO C standard are marked.

#### Issue 7

> POSIX.1-2008, Technical Corrigendum 1, XSH/TC1-2008/0513 [14] is applied.

End of informative text.

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