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<p>exFAT volume.
<a href="class_ex_fat_volume.html#details">More...</a></p>
<p><code>#include &lt;ExFatVolume.h&gt;</code></p>
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<tr class="memitem:a658c250984be29febf8f4d2a2ec312a1"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_ex_fat_partition.html#a658c250984be29febf8f4d2a2ec312a1">rootDirectoryCluster</a> ()</td></tr>
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<tr class="memitem:a9412bd687edc99266c88f8aa87f01c51"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_ex_fat_partition.html#a9412bd687edc99266c88f8aa87f01c51">rootLength</a> ()</td></tr>
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<tr class="memitem:aaa7306ac8ff29f50ec4d919ccaff10d7"><td class="memItemLeft" align="right" valign="top">uint32_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_ex_fat_partition.html#aaa7306ac8ff29f50ec4d919ccaff10d7">sectorsPerCluster</a> ()</td></tr>
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<tr class="memitem:ab1624bf02690ee06365207cb8f1d48ac"><td class="memItemLeft" align="right" valign="top">uint8_t&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_ex_fat_partition.html#ab1624bf02690ee06365207cb8f1d48ac">sectorsPerClusterShift</a> ()</td></tr>
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<tr class="memitem:ae5cbcdd7907a882b4686cb3ba7e85bcc"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_ex_fat_volume.html#ae5cbcdd7907a882b4686cb3ba7e85bcc">truncate</a> (const ExChar_t *path, uint64_t length)</td></tr>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-methods"></a>
Static Public Member Functions</h2></td></tr>
<tr class="memitem:a5b2a874ef0306425bf54c18454771b45"><td class="memItemLeft" align="right" valign="top">static <a class="el" href="class_ex_fat_volume.html">ExFatVolume</a> *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="class_ex_fat_volume.html#a5b2a874ef0306425bf54c18454771b45">cwv</a> ()</td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>exFAT volume. </p>
<p>Copyright (c) 20011-2017 Bill Greiman This file is part of the <a class="el" href="class_sd_fs.html" title="SD file system class for FAT16, FAT32, and exFAT volumes. ">SdFs</a> library for SD memory cards.</p>
<p>MIT License</p>
<p>Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:</p>
<p>The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.</p>
<p>THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a class="anchor" id="a20b5459468e7254da3445653dd8b3803"></a>
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<td class="memname">bool ExFatVolume::begin </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_sd_spi_card.html">BlockDevice</a> *&#160;</td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>setCwv</em> = <code>true</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t&#160;</td>
<td class="paramname"><em>part</em> = <code>0</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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</td>
<td class="mlabels-right">
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<p>Initialize an <a class="el" href="class_fat_volume.html" title="Integration class for the FatLib library. ">FatVolume</a> object. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">dev</td><td>Device block driver. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">setCwv</td><td>Set current working volume if true. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">part</td><td>partition to initialize. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
</div>
</div>
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<td class="memname">uint32_t ExFatPartition::bytesPerCluster </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
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<dl class="section return"><dt>Returns</dt><dd>the number of bytes in a cluster. </dd></dl>
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<td class="memname">uint8_t ExFatPartition::bytesPerClusterShift </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</td>
<td class="mlabels-right">
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<dl class="section return"><dt>Returns</dt><dd>the power of two for bytesPerCluster. </dd></dl>
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<td class="memname">uint16_t ExFatPartition::bytesPerSector </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>the number of bytes in a sector. </dd></dl>
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<td class="memname">uint8_t ExFatPartition::bytesPerSectorShift </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>the power of two for bytesPerSector. </dd></dl>
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<td class="memname">uint8_t* ExFatPartition::cacheClear </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<p>Clear the cache and returns a pointer to the cache. Not for normal apps. </p><dl class="section return"><dt>Returns</dt><dd>A pointer to the cache buffer or zero if an error occurs. </dd></dl>
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<td class="memname">bool ExFatVolume::chdir </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<span class="mlabels"><span class="mlabel">inline</span></span> </td>
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<p>Set volume working directory to root. </p><dl class="section return"><dt>Returns</dt><dd>true for success else false. </dd></dl>
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<td class="memname">bool ExFatVolume::chdir </td>
<td>(</td>
<td class="paramtype">const char *&#160;</td>
<td class="paramname"><em>path</em></td><td>)</td>
<td></td>
</tr>
</table>
</div><div class="memdoc">
<p>Set volume working directory. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>Path for volume working directory. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true for success or false for failure. </dd></dl>
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<td class="memname">void ExFatVolume::chvol </td>
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<td class="paramname"></td><td>)</td>
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<p>Change global working volume to this volume. </p>
</div>
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<td class="memname">uint32_t ExFatPartition::clusterCount </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>the cluster count for the partition. </dd></dl>
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<td class="memname">uint32_t ExFatPartition::clusterHeapStartSector </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>the cluster heap start sector. </dd></dl>
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<td class="memname">static <a class="el" href="class_ex_fat_volume.html">ExFatVolume</a>* ExFatVolume::cwv </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>current working volume. </dd></dl>
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<td class="memname">bool ExFatVolume::exists </td>
<td>(</td>
<td class="paramtype">const ExChar_t *&#160;</td>
<td class="paramname"><em>path</em></td><td>)</td>
<td></td>
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<p>Test for the existence of a file.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>Path of the file to be tested for.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>true if the file exists else false. </dd></dl>
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<td class="memname">uint32_t ExFatPartition::fatLength </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>the FAT length in sectors </dd></dl>
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<td class="memname">uint32_t ExFatPartition::fatStartSector </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>the FAT start sector number. </dd></dl>
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<td class="memname">uint8_t ExFatPartition::fatType </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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<dl class="section return"><dt>Returns</dt><dd>Type FAT_TYPE_EXFAT for exFAT partition or zero for error. </dd></dl>
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<td class="memname">uint32_t ExFatPartition::freeClusterCount </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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<dl class="section return"><dt>Returns</dt><dd>the free cluster count. </dd></dl>
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<td class="memname">bool ExFatPartition::init </td>
<td>(</td>
<td class="paramtype"><a class="el" href="class_sd_spi_card.html">BlockDevice</a> *&#160;</td>
<td class="paramname"><em>dev</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t&#160;</td>
<td class="paramname"><em>part</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Initialize a exFAT partition. </p><dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">dev</td><td>The blockDevice for the partition. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">part</td><td>The partition to be used. Legal values for <em>part</em> are 1-4 to use the corresponding partition on a device formatted with a MBR, Master Boot Record, or zero if the device is formatted as a super floppy with the FAT boot sector in sector zero.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
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<td class="memname">void ExFatVolume::ls </td>
<td>(</td>
<td class="paramtype">print_t *&#160;</td>
<td class="paramname"><em>pr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t&#160;</td>
<td class="paramname"><em>flags</em> = <code>0</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>List the directory contents of the root directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for list.</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">flags</td><td>The inclusive OR of</td></tr>
</table>
</dd>
</dl>
<p>LS_DATE - Print file modification date</p>
<p>LS_SIZE - Print file size.</p>
<p>LS_R - Recursive list of subdirectories. </p>
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<td class="memname">void ExFatVolume::ls </td>
<td>(</td>
<td class="paramtype">print_t *&#160;</td>
<td class="paramname"><em>pr</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const ExChar_t *&#160;</td>
<td class="paramname"><em>path</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">uint8_t&#160;</td>
<td class="paramname"><em>flags</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>List the directory contents of a directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">pr</td><td>Print stream for list.</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>directory to list.</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">flags</td><td>The inclusive OR of</td></tr>
</table>
</dd>
</dl>
<p>LS_DATE - Print file modification date</p>
<p>LS_SIZE - Print file size.</p>
<p>LS_R - Recursive list of subdirectories. </p>
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<td class="memname">bool ExFatVolume::mkdir </td>
<td>(</td>
<td class="paramtype">const ExChar_t *&#160;</td>
<td class="paramname"><em>path</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool&#160;</td>
<td class="paramname"><em>pFlag</em> = <code>true</code>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Make a subdirectory in the volume root directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a valid 8.3 DOS name for the subdirectory.</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">pFlag</td><td>Create missing parent directories if true.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
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<td class="memname">bool ExFatVolume::remove </td>
<td>(</td>
<td class="paramtype">const ExChar_t *&#160;</td>
<td class="paramname"><em>path</em></td><td>)</td>
<td></td>
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<p>Remove a file from the volume root directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a valid 8.3 DOS name for the file.</td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
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<td class="memname">bool ExFatVolume::rename </td>
<td>(</td>
<td class="paramtype">const ExChar_t *&#160;</td>
<td class="paramname"><em>oldPath</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const ExChar_t *&#160;</td>
<td class="paramname"><em>newPath</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
</table>
</td>
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<p>Rename a file or subdirectory.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">oldPath</td><td>Path name to the file or subdirectory to be renamed.</td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">newPath</td><td>New path name of the file or subdirectory.</td></tr>
</table>
</dd>
</dl>
<p>The <em>newPath</em> object must not exist before the rename call.</p>
<p>The file to be renamed must not be open. The directory entry may be moved and file system corruption could occur if the file is accessed by a file object that was opened before the <a class="el" href="class_ex_fat_volume.html#a8dcd1b108167803a24f7314f5fce6bc4">rename()</a> call.</p>
<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
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<td class="memname">bool ExFatVolume::rmdir </td>
<td>(</td>
<td class="paramtype">const ExChar_t *&#160;</td>
<td class="paramname"><em>path</em></td><td>)</td>
<td></td>
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<p>Remove a subdirectory from the volume's working directory.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a valid 8.3 DOS name for the subdirectory.</td></tr>
</table>
</dd>
</dl>
<p>The subdirectory file will be removed only if it is empty.</p>
<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
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<td class="memname">uint32_t ExFatPartition::rootDirectoryCluster </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
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<dl class="section return"><dt>Returns</dt><dd>the root directory start cluster number. </dd></dl>
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<td class="memname">uint32_t ExFatPartition::rootLength </td>
<td>(</td>
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<dl class="section return"><dt>Returns</dt><dd>the root directory length. </dd></dl>
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<td class="memname">uint32_t ExFatPartition::sectorsPerCluster </td>
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<dl class="section return"><dt>Returns</dt><dd>the number of sectors in a cluster. </dd></dl>
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<dl class="section return"><dt>Returns</dt><dd>the power of two for sectors per cluster. </dd></dl>
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<td class="memname">bool ExFatVolume::truncate </td>
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<td class="paramtype">const ExChar_t *&#160;</td>
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<td class="paramtype">uint64_t&#160;</td>
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<p>Truncate a file to a specified length. The current file position will be at the new EOF.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramdir">[in]</td><td class="paramname">path</td><td>A path with a valid 8.3 DOS name for the file. </td></tr>
<tr><td class="paramdir">[in]</td><td class="paramname">length</td><td>The desired length for the file.</td></tr>
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<dl class="section return"><dt>Returns</dt><dd>The value true is returned for success and the value false is returned for failure. </dd></dl>
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<hr/>The documentation for this class was generated from the following files:<ul>
<li>ArduinoSdFs/libraries/SdFs/src/ExFatLib/ExFatVolume.h</li>
<li>ArduinoSdFs/libraries/SdFs/src/ExFatLib/ExFatVolume.cpp</li>
</ul>
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