Symbian3/SDK/Source/GUID-D96EE819-DEA9-5B1A-AA94-4AC065C73697.dita
author Dominic Pinkman <dominic.pinkman@nokia.com>
Tue, 20 Jul 2010 12:00:49 +0100
changeset 13 48780e181b38
parent 8 ae94777fff8f
permissions -rw-r--r--
Week 28 contribution of SDK documentation content. See release notes for details. Fixes bugs Bug 1897 and Bug 1522.
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License 
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"Eclipse Public License v1.0" which accompanies this distribution, 
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors: 
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-->
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-D96EE819-DEA9-5B1A-AA94-4AC065C73697" xml:lang="en"><title>Array
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of same length elements, segmented buffer</title><shortdesc>Describes how elements of the same length are organised in the
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array buffer.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>This is a <codeph>CArrayFixSeg&lt;class T&gt;</codeph> object whose elements:</p>
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<ul>
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<li id="GUID-F196DE9B-A500-5421-A5EF-679ACB613297"><p>all have the same length</p> </li>
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<li id="GUID-999B1623-7FFF-5F48-91BD-202BE4E46669"><p>are contained within
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a segmented array buffer; the elements are logically contiguous but are physically
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contiguous only within a segment.</p> </li>
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</ul>
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<p>A segmented buffer is implemented as a doubly linked list of equally sized
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cells allocated from the heap and is always extended by allocating a new segment
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and inserting it into the appropriate place in the list. A segmented array
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buffer is implemented using a <codeph>CBufSeg</codeph> object.</p>
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<p>The following diagram illustrates how elements are organised within the
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array buffer:</p>
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<fig id="GUID-D3DF754C-E97D-5408-8229-8AD4E262981E">
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<image href="GUID-1C14ECA4-057B-5591-A8E3-F7DB0325E5AE_d0e220641_href.png" placement="inline"/>
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</fig>
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<p>This kind of array is suitable for large arrays with a high
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turnover of elements.</p>
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<p>This class is immediately derived from the abstract template base class <codeph>CArrayFix&lt;class T&gt;</codeph> which
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is itself derived from the abstract non-templated base class <codeph>CArrayFixBase</codeph>. </p>
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<section id="GUID-614C4B48-2523-4020-AFD7-5E9C5076537B"><title>See also</title> <p><xref href="GUID-112AAFA5-B4C9-5B62-A106-FB5097C13A0E.dita">Using
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Dynamic Buffers</xref>.</p> </section>
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</conbody></concept>