Symbian3/SDK/Source/GUID-1FC0156C-7BDB-5D5B-9860-837DAB431D24.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Wed, 31 Mar 2010 11:11:55 +0100
changeset 7 51a74ef9ed63
parent 0 89d6a7a84779
permissions -rw-r--r--
Week 12 contribution of API Specs and fix SDK submission

<?xml version="1.0" encoding="utf-8"?>
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    Nokia Corporation - initial contribution.
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<!DOCTYPE concept
  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
<concept id="GUID-1FC0156C-7BDB-5D5B-9860-837DAB431D24" xml:lang="en"><title>How to
implement and use NewLC()</title><shortdesc>This document describes how to destroy objects created with <codeph>NewLC()</codeph>.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
<p>When an object is created through <codeph>NewLC()</codeph>, use <codeph>CleanupStack::PopAndDestroy()</codeph> to
destroy the object when its use is complete.</p>
<codeblock id="GUID-34A7790B-1FA9-58FA-83D9-A2CF6C07F2F2" xml:space="preserve">static CExample* CExample::NewLC()
    {
    CExample* self = new (ELeave) CExample();
    CleanupStack::PushL(self);
    self-&gt;ConstructL();
    return self;
    }</codeblock>
<codeblock id="GUID-421A377A-7192-5908-A1C6-E3941046D489" xml:space="preserve">void doExampleL()
    {
    // allocate and push to cleanup stack - leave if failed
    CExample* myExample = CExample::NewLC();
    // do something that might leave
    myExample-&gt;DoSomethingL();  
    // pop from cleanup stack and destroy
    CleanupStack::PopAndDestroy(); 
    }</codeblock>
</conbody></concept>