113 lines
3.6 KiB
HTML
113 lines
3.6 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html>
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<head>
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<meta name="Copyright" content="Copyright (c) 2006 by IBM Corporation">
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<title>creat64()--Create or Rewrite a File (Large File Enabled)</title>
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<!-- Begin Header Records -->
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<!-- All rights reserved. Licensed Materials Property of IBM -->
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<!-- US Government Users Restricted Rights -->
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<!-- Use, duplication or disclosure restricted by -->
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<!-- GSA ADP Schedule Contract with IBM Corp. -->
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<!-- Change History: -->
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<!-- YYMMDD USERID Change description -->
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<!-- Unix2 SCRIPT J converted by B2H R4.1 (346) (CMS) by V2KEA304 -->
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<!-- at RCHVMW2 on 17 Feb 1999 at 11:05:09 -->
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<!-- This file has undergone html cleanup on 05/14/02 by JET -->
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<!-- End Header Records -->
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<link rel="stylesheet" type="text/css" href="../rzahg/ic.css">
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</head>
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<body>
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<!-- Java sync-link -->
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<script language="Javascript" src="../rzahg/synch.js" type="text/javascript">
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</script>
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<a name="Top_Of_Page"></a>
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<h2>creat64()--Create or Rewrite a File (Large File Enabled)</h2>
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<div class="box" style="width: 60%;">
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<br>
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Syntax<br>
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<pre>
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#include <fcntl.h>
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int creat64(const char <em>*path</em>, mode_t <em>mode</em>);
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</pre>
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Service Program Name: QP0LLIB1<br>
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<!-- iddvc RMBR -->
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<br>
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Default Public Authority: *USE<br>
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<!-- iddvc RMBR -->
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<br>
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Threadsafe: Conditional; see <a href="#USAGE_NOTES">Usage Notes</a>.<br>
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<!-- iddvc RMBR -->
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<br>
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</div>
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<p>The <strong>creat64()</strong> function creates a new file or rewrites an
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existing file so that it is truncated to zero length. The open file instance
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created with <strong>creat64()</strong> is allowed to be larger than 2GB minus
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1 byte. The function call</p>
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<pre>
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creat64(<em>path,mode</em>);
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</pre>
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is equivalent to the call
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<pre>
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open64(<em>path</em>, O_CREAT|O_WRONLY|O_TRUNC, <em>mode</em>);
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</pre>
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<p>If the file named by <em>path</em> does not already exist, it is created.
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The file is then opened for writing only and truncated to zero length. For
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further information, see <a href="open64.htm">open64()</a>--Open File (Large
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File Enabled).</p>
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<p>See <a href="creat64u.htm">QlgCreat64</a>--Create or Rewrite a File (Large
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File Enabled) for a description and an example of supplying the <em>path</em>
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in any CCSID.</p>
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<p>The <em>mode</em> argument specifies file permission bits to be used in
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creating the file. For more information on <em>mode</em>, see <a href=
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"fchmod.htm">chmod()</a>--Change File Authorizations.</p>
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<p>For additional information about parameters, authorities required, error
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conditions, and examples, see <a href="creat.htm">creat()</a>--Create or
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Rewrite File.</p>
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<br>
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<h3><a name="usage_notes">Usage Notes</a></h3>
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<ol type="1">
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<li>When you develop in C-based languages, the prototypes for the 64-bit APIs
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are normally hidden. To use the <strong>creat64()</strong> API, you must
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compile the source with _LARGE_FILE_API macro defined.<br>
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<br>
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</li>
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<li>All of the usage notes for <strong>creat()</strong> apply to <strong>
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creat64()</strong>. See <a href="creat.htm#HDRCRTUSAG">Usage Notes</a> in the
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<strong>creat()</strong> API.</li>
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</ol>
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<hr>
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API introduced: V4R4
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<hr>
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<center>
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<table cellpadding="2" cellspacing="2">
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<tr align="center">
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<td valign="middle" align="center"><a href="#Top_Of_Page">Top</a> | <a href=
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"unix.htm">UNIX-Type APIs</a> | <a href="aplist.htm">APIs by category</a></td>
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</tr>
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</table>
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</center>
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</body>
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</html>
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