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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<html lang="en">
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<head>
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<meta http-equiv="Content-Language" content="en-us">
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<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
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<title>Content Assist</title>
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<link rel="stylesheet" type="text/css" href="../help.css">
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</head>
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<body>
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<h1>Content Assist</h1>
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<p>Content Assist is a set of tools built into the CDT that can reduce the number of keystrokes you must
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type to create your code. The Content Assist plug-in consists of several components that forecast what
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a developer will type, based on the current context, scope, and prefix.</p>
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<h2>Code completion</h2>
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<p>Content assist provides code completion anywhere in the document. For the current project a list is
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displayed of the elements that begin with the letter combination you entered, and
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the relevance of each proposal is determined in the following order:</p>
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<ul>
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<li>Fields</li>
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<li>Variables</li>
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<li>Methods</li>
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<li>Functions</li>
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<li>Classes</li>
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<li>Structs</li>
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<li>Unions</li>
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<li>Namespaces</li>
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<li>Enumerations</li>
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</ul>
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You trigger the Code completion feature when you call Content Assist (such as when you type <tt>Ctrl+Space</tt>), but it is auto-activated when you type
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"<b>.</b>", "<b>-></b>" or "<b>::</b>".</p>
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<p><img src="../images/contentAssist_example.png" alt="C++ example showing Code Assist popup"></p>
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<p>You can view the signature of each item on the list in a pop-up by pointing to it. You can then select an item in the list to insert it directly into your code. </p>
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<h2>Templates</h2>
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<p>You can create and save templates for frequently used sections of code, which will be inserted according to scope. The Content Assist feature also provides quick access to code
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templates.</p>
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<p>When you enter a letter combination in the C/C++ editor, and type <tt>CTRL+SPACE</tt> (or right-click and click <b>Content Assist</b>), a
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list of code elements and templates that start with the letter combination that you typed is displayed.</p>
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<p>You can then select a template from the list and it is inserted directly into your code.</p>
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<img src="../images/editor_c_codetemplates_use.png" alt="C++ example showing Code Assist popup"></p>
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<p>For example, the template <samp>do while statement</samp> contains the following code:</p>
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<p><img src="../images/codetemplates_example.png" alt="Code Template showing do-while example"></p>
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<p> When you select the <samp>do</samp> template from the list, you insert the following code:</p>
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<p><pre>do {
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} while (condition);</pre></p>
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<p>If the completion engine finds only one proposal in your templates, that proposal is inserted at the current cursor position.
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For example if you create a new .cpp file and type <tt>mai+CTRL+SPACE</tt> the following code is inserted at the cursor location:</p>
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<p><pre>int
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main(int argc, char **argv) {
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}</pre></p>
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<h2>No Completions</h2>
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<p>If you invoke Content Assist, but no completions are found a message will be displayed on the status to inform you that the Content Assist parser has timed out.</p>
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<p><img src="../images/cdt_ca_no_completions.png" alt="Content Assist No completions available message"></p>
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<p><img border="0" src="../images/ngconcepts.gif" ALT="Related concepts" width="143" height="21">
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<br>
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<a href="cdt_o_code_entry.htm">Code entry</a></p>
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<p><img border="0" src="../images/ngtasks.gif" ALT="Related tasks" width="143" height="21">
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<br>
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<a href="../tasks/cdt_t_contentassist.htm">Using Content Assist</a><br>
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<a href="../tasks/cdt_t_add_codetemp.htm">Creating and editing templates</a><br>
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<a href="../tasks/cdt_t_imp_code_temp.htm">Importing and exporting templates</a></p>
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<p><img border="0" src="../images/ngref.gif" ALT="Related reference" width="143" height="21">
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<br>
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<a href="../reference/cdt_u_icons.htm">C/C++ perspective icons</a></p>
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<p>
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<img src="../images/ng00_04a.gif" ALT="IBM Copyright Statement" ></p>
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</body>
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</html>
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