1 <?xml version="1.0" encoding="utf-8"?>

     2 <!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

     3 <!-- This component and the accompanying materials are made available under the terms of the License 

     4 "Eclipse Public License v1.0" which accompanies this distribution, 

     5 and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

     6 <!-- Initial Contributors:

     7     Nokia Corporation - initial contribution.

     8 Contributors: 

     9 -->

    10 <!DOCTYPE concept

    11   PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

    12 <concept id="GUID-D96EE819-DEA9-5B1A-AA94-4AC065C73697" xml:lang="en"><title>Array

    13 of same length elements, segmented buffer</title><shortdesc>Describes how elements of the same length are organised in the

    14 array buffer.</shortdesc><prolog><metadata><keywords/></metadata></prolog><conbody>

    15 <p>This is a <codeph>CArrayFixSeg&lt;class T&gt;</codeph> object whose elements:</p>

    16 <ul>

    17 <li id="GUID-F196DE9B-A500-5421-A5EF-679ACB613297"><p>all have the same length</p> </li>

    18 <li id="GUID-999B1623-7FFF-5F48-91BD-202BE4E46669"><p>are contained within

    19 a segmented array buffer; the elements are logically contiguous but are physically

    20 contiguous only within a segment.</p> </li>

    21 </ul>

    22 <p>A segmented buffer is implemented as a doubly linked list of equally sized

    23 cells allocated from the heap and is always extended by allocating a new segment

    24 and inserting it into the appropriate place in the list. A segmented array

    25 buffer is implemented using a <codeph>CBufSeg</codeph> object.</p>

    26 <p>The following diagram illustrates how elements are organised within the

    27 array buffer:</p>

    28 <fig id="GUID-D3DF754C-E97D-5408-8229-8AD4E262981E">

    29 <image href="GUID-1C14ECA4-057B-5591-A8E3-F7DB0325E5AE_d0e307592_href.png" placement="inline"/>

    30 </fig>

    31 <p>This kind of array is suitable for large arrays with a high

    32 turnover of elements.</p>

    33 <p>This class is immediately derived from the abstract template base class <codeph>CArrayFix&lt;class T&gt;</codeph> which

    34 is itself derived from the abstract non-templated base class <codeph>CArrayFixBase</codeph>. </p>

    35 <section id="GUID-614C4B48-2523-4020-AFD7-5E9C5076537B"><title>See also</title> <p><xref href="GUID-112AAFA5-B4C9-5B62-A106-FB5097C13A0E.dita">Using

    36 Dynamic Buffers</xref>.</p> </section>

    37 </conbody></concept>