66 lines
2.7 KiB
HTML
66 lines
2.7 KiB
HTML
<!--$Id: db_get_byteswapped.html 63573 2008-05-23 21:43:21Z trent.nelson $-->
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<!--Copyright (c) 1997,2008 Oracle. All rights reserved.-->
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<!--See the file LICENSE for redistribution information.-->
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<html>
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<head>
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<title>Berkeley DB: DB->get_byteswapped</title>
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<meta name="description" content="Berkeley DB: An embedded database programmatic toolkit.">
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<meta name="keywords" content="embedded,database,programmatic,toolkit,btree,hash,hashing,transaction,transactions,locking,logging,access method,access methods,Java,C,C++">
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</head>
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<body bgcolor=white>
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<table width="100%"><tr valign=top>
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<td>
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<b>DB->get_byteswapped</b>
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</td>
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<td align=right>
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<a href="../api_c/api_core.html"><img src="../images/api.gif" alt="API"></a>
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<a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a></td>
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</tr></table>
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<hr size=1 noshade>
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<tt>
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<b><pre>
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#include <db.h>
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<p>
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int
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DB->get_byteswapped(DB *db, int *isswapped);
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</pre></b>
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<hr size=1 noshade>
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<b>Description: DB->get_byteswapped</b>
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<p>The DB->get_byteswapped method returns if the underlying database
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files were created on an architecture of the same byte order as the
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current one, or if they were not (that is, big-endian on a little-endian
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machine, or vice versa). This information may be used to determine
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whether application data needs to be adjusted for this architecture or
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not.</p>
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<p>The DB->get_byteswapped method may not be called before the <a href="../api_c/db_open.html">DB->open</a> method is called.</p>
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<p>The DB->get_byteswapped method
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returns a non-zero error value on failure
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and 0 on success.
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</p>
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<b>Parameters</b> <br>
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<b>isswapped</b><ul compact><li>If the underlying database files were created on an architecture of the
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same byte order as the current one. 0 is stored into the memory location
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referenced by <b>isswapped</b>. If the underlying database files were
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created on an architecture of a different byte order as the current one,
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1 is stored into the memory location referenced by <b>isswapped</b>.</ul>
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<br>
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<br><b>Errors</b>
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<p>The DB->get_byteswapped method
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may fail and return one of the following non-zero errors:</p>
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<br>
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<b>EINVAL</b><ul compact><li>If the method was called before <a href="../api_c/db_open.html">DB->open</a> was called; or if an
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invalid flag value or parameter was specified.</ul>
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<br>
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<hr size=1 noshade>
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<br><b>Class</b>
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<a href="../api_c/db_class.html">DB</a>
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<br><b>See Also</b>
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<a href="../api_c/db_list.html">Databases and Related Methods</a>
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</tt>
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<table width="100%"><tr><td><br></td><td align=right>
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<a href="../api_c/api_core.html"><img src="../images/api.gif" alt="API"></a><a href="../ref/toc.html"><img src="../images/ref.gif" alt="Ref"></a>
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</td></tr></table>
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<p><font size=1>Copyright (c) 1996,2008 Oracle. All rights reserved.</font>
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</body>
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</html>
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