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<title>Indexer preferences (C/C++)</title>
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<div role="main"><h1>Indexer preferences (C/C++)</h1>
<p>Use the <img src="../images/command_link.png" alt="" > <a class="command-link" href='javascript:executeCommand("org.eclipse.ui.window.preferences(preferencePageId=org.eclipse.cdt.ui.preferences.IndexerPreferencePage)")'>Indexer</a> preference panel to select the indexer used by default for new projects and configure its behavior.</p>
<p> <img src="../images/indexer_preference_page.png" alt="Indexer Preferences Window" ><br>
</p>
<table width="700" cellpadding="5" cellspacing="0" border="1" bordercolor="#DDDDDD" >
<caption><strong>Indexer Options</strong></caption>
<colgroup>
<col width="30%" valign="top" >
<col width="70%" valign="top" >
</colgroup>
<tbody>
<tr>
<th id="option"><strong>Option</strong></th>
<th id="description"><strong>Description</strong></th>
</tr>
<tr valign="top">
<td headers="option"><strong>Select Indexer </strong></td>
<td headers="description">Select the indexer to use by default for all new projects. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Index source files not included in the build</strong></td>
<td headers="description">Activate this checkbox to index all source files used by the project.</td>
</tr>
<tr valign="top">
<td headers="option"><strong>Index unused headers</strong></td>
<td headers="description">Activate this checkbox to index unused header files.</td>
</tr>
<tr valign="top">
<td headers="option"><strong>Allow heuristic resolution of includes </strong></td>
<td headers="description">Activate this checkbox to allow the indexer to skip indexing duplicate include files. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Skip files larger than</strong></td>
<td headers="description">Enter the maximum file size to skip when indexing.</td>
</tr>
<tr valign="top">
<td headers="option"><strong>Skip all references (Call Hierarchy and Search will not work) </strong></td>
<td headers="description">Activate this checkbox to not index references to save space and gain performance. This prevents some portions of CDT from working, like Call Hierarchy and search for references. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Skip implicit references (e.g. overloaded operators) </strong></td>
<td headers="description">Activate this checkbox to not index implicit references.</td>
</tr>
<tr valign="top">
<td headers="option"><strong>Skip type and macro references (Search for these references will not work) </strong></td>
<td headers="description">Activate this checkbox to not index macro or type references. This prevents some portions of CDT from working, like Search. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Files to index up-front </strong></td>
<td headers="description">Type a comma separated list of files that should always be indexed immediately. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Automatically update the index </strong></td>
<td headers="description">Activate this checkbox to have the index automatically update as it requires. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Update index immediately after every file change </strong></td>
<td headers="description">Activate this checkbox to force an index update whenever a file is saved. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Use active build configuration </strong></td>
<td headers="description">Activate to always use the active build configuration indexer settings to build the index. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Use the build configuration specified in the project's indexer settings </strong></td>
<td headers="description">Activate to always use the project's indexer settings to build the index. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Index database cache: Limit relative to the maximum heap size </strong></td>
<td headers="description">Specify the relative size limit the index can reach based on the maximum heap size. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Index database cache: Absolute limit </strong></td>
<td headers="description">Specify the maximum size the index database cache is limited to. </td>
</tr>
<tr valign="top">
<td headers="option"><strong>Header file cache: Absolute limit </strong></td>
<td headers="description">Specify the maximum size the header file cache is limited to. </td>
</tr>
</tbody>
</table>
<p><img style="border: 0px solid ; width: 143px; height: 21px;"
src="../images/ngconcepts.gif" alt="Related concepts"> <br>
<a href="../concepts/cdt_o_code_entry.htm">Coding aids</a><br>
<a href="../concepts/cdt_c_search.htm">C/C++ search</a></p>
<p><img style="border: 0px solid ; width: 143px; height: 21px;"
src="../images/ngtasks.gif" alt="Related tasks"> <br>
<a href="../tasks/cdt_t_search.htm">Searching for C/C++ elements</a><br>
<a href="../tasks/cdt_t_cust_cpp_editor.htm">Customizing the C/C++
editor</a></p>
<p><img style="border: 0px solid ; width: 143px; height: 21px;"
src="../images/ngref.gif" alt="Related reference">
<br>
<a href="cdt_u_search.htm">C/C++ search page, Search window</a><br>
<a href="cdt_u_m_search.htm">Search action</a><br>
<a href="cdt_u_search_view.htm">Search view</a><br>
</p>
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