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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/cardgamedealer_8cpp-source.html
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Tue, 30 Mar 2010 11:42:04 +0100
changeset 4 4816d766a08a
parent 1 25a17d01db0c
permissions -rw-r--r--
Week 12 contribution of SDK documentation_content. See release notes for details. Fixes Bug 1892, Bug 1522, Bug 1520, Bug 394, Bug 1319, Bug 344, Bug 1897
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
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<title>TB10.1 Example Applications: examples/Bluetooth/BTExample1/src/cardgamedealer.cpp Source File</title>
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<link href="doxygen.css" rel="stylesheet" type="text/css">
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<link href="tabs.css" rel="stylesheet" type="text/css">
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</head><body>
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<!-- Generated by Doxygen 1.5.3 -->
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<h1>examples/Bluetooth/BTExample1/src/cardgamedealer.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
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<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
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<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
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<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
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<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
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<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
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<a name="l00007"></a>00007 <span class="comment">//</span>
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<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
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<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
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<a name="l00010"></a>00010 <span class="comment">//</span>
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<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
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<a name="l00012"></a>00012 <span class="comment">//</span>
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<a name="l00013"></a>00013 <span class="comment">// Description:</span>
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<a name="l00014"></a>00014 <span class="comment">//</span>
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<a name="l00015"></a>00015
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<a name="l00016"></a>00016 <span class="preprocessor">#include &lt;e32base.h&gt;</span>
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<a name="l00017"></a>00017 <span class="preprocessor">#include &lt;e32math.h&gt;</span>
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<a name="l00018"></a>00018
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<a name="l00019"></a>00019 <span class="preprocessor">#include "cardgamedealer.h"</span>
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<a name="l00020"></a>00020 <span class="preprocessor">#include "cardgamebase.h"</span>
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<a name="l00021"></a>00021
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<a name="l00022"></a>00022 <span class="keyword">const</span> TInt KCardDesLength = 2; <span class="comment">// Descriptor length for a single card</span>
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<a name="l00023"></a>00023
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<a name="l00027"></a><a class="code" href="class_c_card_game_dealer.html#713a566d591c7b7939d19c949d2d4165">00027</a> <a class="code" href="class_c_card_game_dealer.html#713a566d591c7b7939d19c949d2d4165">CCardGameDealer::~CCardGameDealer</a>()
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<a name="l00028"></a>00028         {
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<a name="l00029"></a>00029         }
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<a name="l00030"></a>00030
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<a name="l00034"></a><a class="code" href="class_c_card_game_dealer.html#6f373e2a980af912bff2d0794a2bb9ca">00034</a> <span class="keywordtype">void</span> <a class="code" href="class_c_card_game_dealer.html#6f373e2a980af912bff2d0794a2bb9ca">CCardGameDealer::ConstructL</a>(RArray&lt;TInetAddr&gt;&amp; aRemoteNames, RSocket&amp; aSocket)
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<a name="l00035"></a>00035         {
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<a name="l00036"></a>00036         <a class="code" href="class_c_card_game_dealer.html#1e76fa4b839e979cb5f83346ed8d1ad4">iRemoteNames</a> = aRemoteNames;
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<a name="l00037"></a>00037         <a class="code" href="class_c_card_game_base.html#2c4028781b8e903eb7781cb281d7af4c">CCardGameBase::ConstructL</a>(aSocket);
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<a name="l00038"></a>00038         }
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<a name="l00039"></a>00039
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<a name="l00047"></a><a class="code" href="class_c_card_game_dealer.html#6e3ff8d4371ea68515bb3c93c662aa8d">00047</a> <span class="keywordtype">void</span> <a class="code" href="class_c_card_game_dealer.html#6e3ff8d4371ea68515bb3c93c662aa8d">CCardGameDealer::ShuffleCards</a>(TDesC8&amp; aCards)
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<a name="l00048"></a>00048         {
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<a name="l00049"></a>00049     RArray&lt;TInt&gt; usedNumbers;<span class="comment">// Array of used positions</span>
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<a name="l00050"></a>00050         TBool oldNum = ETrue;
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<a name="l00051"></a>00051         TPtrC8 ptr;
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<a name="l00052"></a>00052         TInt random = 0;
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<a name="l00053"></a>00053         <span class="keyword">const</span> TInt deckLength = aCards.Length();
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<a name="l00054"></a>00054         RBuf8 tempBuffer;
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<a name="l00055"></a>00055         tempBuffer.Create(deckLength);
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<a name="l00056"></a>00056         <span class="comment">//Take first card (2chars) and put it into tempBuffer in random position</span>
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<a name="l00057"></a>00057         <span class="comment">// make a note of this pos as we can use it again. or just check if empty</span>
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<a name="l00058"></a>00058         <span class="keywordflow">for</span> (TInt i=0; i&lt;=deckLength; i=i+KCardDesLength)
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<a name="l00059"></a>00059                 {
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<a name="l00060"></a>00060                 <span class="keywordflow">while</span> (oldNum)
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<a name="l00061"></a>00061                         {
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<a name="l00062"></a>00062                         <span class="comment">//generate random number between 0 and 96</span>
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<a name="l00063"></a>00063                         random = Math::Random() % deckLength-KCardDesLength;
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<a name="l00064"></a>00064                         <span class="keywordflow">if</span> (random &lt;= deckLength-KCardDesLength &amp;&amp; random &gt;= 0)
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<a name="l00065"></a>00065                                 {
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<a name="l00066"></a>00066                                 TReal remainder;
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<a name="l00067"></a>00067                                 Math::Mod(remainder,random,KCardDesLength);
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<a name="l00068"></a>00068                                 <span class="keywordflow">if</span> (remainder)<span class="comment">// if true then we have an odd , make it into an even.</span>
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<a name="l00069"></a>00069                                         random++;
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<a name="l00070"></a>00070                                 <span class="comment">// now we have an even number check that we haven't used it before</span>
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<a name="l00071"></a>00071                                 oldNum = EFalse;
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<a name="l00072"></a>00072                                 <span class="keywordflow">for</span> (TInt j=0; j&lt;usedNumbers.Count();j++)
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<a name="l00073"></a>00073                                         {
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<a name="l00074"></a>00074                                         <span class="keywordflow">if</span> (random == usedNumbers[j])
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<a name="l00075"></a>00075                                                 oldNum = ETrue;
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<a name="l00076"></a>00076                                         }
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<a name="l00077"></a>00077
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<a name="l00078"></a>00078                                 <span class="keywordflow">if</span> (!oldNum)
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<a name="l00079"></a>00079                                         {
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<a name="l00080"></a>00080                                         <span class="comment">// We have a card that we haven't used before</span>
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<a name="l00081"></a>00081                                         usedNumbers.Append(random);
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<a name="l00082"></a>00082                                         }
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<a name="l00083"></a>00083                                 }
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<a name="l00084"></a>00084
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<a name="l00085"></a>00085                         }
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087
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<a name="l00088"></a>00088                 ptr.Set(aCards.Mid(random,KCardDesLength));
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<a name="l00089"></a>00089                 tempBuffer.Append(ptr);
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<a name="l00090"></a>00090                 oldNum = ETrue;
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<a name="l00091"></a>00091                 }
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<a name="l00092"></a>00092
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<a name="l00093"></a>00093         <span class="comment">//finished shuffle, now copy into full deck.</span>
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<a name="l00094"></a>00094         aCards = tempBuffer;
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<a name="l00095"></a>00095         tempBuffer.FillZ();<span class="comment">// clear the temp. buffer</span>
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<a name="l00096"></a>00096         usedNumbers.Close();
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<a name="l00097"></a>00097         tempBuffer.Close();
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<a name="l00098"></a>00098         }
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<a name="l00099"></a>00099
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<a name="l00107"></a><a class="code" href="class_c_card_game_dealer.html#4e93e20574fc1cc4efb213d01cda9052">00107</a> <span class="keywordtype">void</span> <a class="code" href="class_c_card_game_dealer.html#4e93e20574fc1cc4efb213d01cda9052">CCardGameDealer::DealCardsL</a>(TDesC8&amp; aCards)
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<a name="l00108"></a>00108         {
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<a name="l00109"></a>00109         TInt deckLength = aCards.Length();
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<a name="l00110"></a>00110         TInt playerCount = <a class="code" href="class_c_card_game_dealer.html#1e76fa4b839e979cb5f83346ed8d1ad4">iRemoteNames</a>.Count();
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<a name="l00111"></a>00111         <span class="comment">// playerCount is used to divide deck.</span>
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<a name="l00112"></a>00112
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<a name="l00113"></a>00113
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<a name="l00114"></a>00114         <a class="code" href="class_c_card_game_dealer.html#6e3ff8d4371ea68515bb3c93c662aa8d">ShuffleCards</a>(aCards);
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<a name="l00115"></a>00115         TInt handLength = (deckLength) / playerCount;
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<a name="l00116"></a>00116         TReal remainder;
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<a name="l00117"></a>00117         Math::Mod(remainder, deckLength, playerCount);
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<a name="l00118"></a>00118         <span class="comment">// we want to give each player handlength *2 cards</span>
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<a name="l00119"></a>00119         <span class="comment">// then n(remainder) players one card extra each</span>
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<a name="l00120"></a>00120
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<a name="l00121"></a>00121         <span class="comment">// send out a message to each player stating the size of recieve buffer they will need</span>
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<a name="l00122"></a>00122         TRequestStatus status;
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<a name="l00123"></a>00123         TInt size;
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<a name="l00124"></a>00124         TInt startPoint = 0;
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<a name="l00125"></a>00125         <span class="keywordflow">for</span> (TInt i=0;i&lt;<a class="code" href="class_c_card_game_dealer.html#1e76fa4b839e979cb5f83346ed8d1ad4">iRemoteNames</a>.Count();i++)
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<a name="l00126"></a>00126                 {
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<a name="l00127"></a>00127                 <span class="keywordflow">if</span> (remainder &gt; 0)
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<a name="l00128"></a>00128                         {
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<a name="l00129"></a>00129                         <span class="comment">// we want to set recieve buffer to handLength*2 + 2</span>
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<a name="l00130"></a>00130                         size = handLength*2 + 2;
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<a name="l00131"></a>00131                         <span class="comment">// Send pointer to portion of the deck</span>
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<a name="l00132"></a>00132                         <a class="code" href="class_c_card_game_base.html#fcb73ff985455bb67379a1762be9761e">iSocket</a>.SendTo(aCards.Mid(startPoint,size), <a class="code" href="class_c_card_game_dealer.html#1e76fa4b839e979cb5f83346ed8d1ad4">iRemoteNames</a>[i], 0, status);
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<a name="l00133"></a>00133                         User::WaitForRequest(status);
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<a name="l00134"></a>00134                         User::LeaveIfError(status.Int());
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<a name="l00135"></a>00135                         startPoint = size;<span class="comment">// change start point to end of last hand sent out</span>
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<a name="l00136"></a>00136                         remainder--;
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<a name="l00137"></a>00137                         }
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<a name="l00138"></a>00138                 <span class="keywordflow">else</span>
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<a name="l00139"></a>00139                         {
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<a name="l00140"></a>00140                         <span class="comment">//we want to set the players recieve buffer to handlength * 2</span>
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<a name="l00141"></a>00141                         size = handLength*2;
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<a name="l00142"></a>00142                         <a class="code" href="class_c_card_game_base.html#fcb73ff985455bb67379a1762be9761e">iSocket</a>.SendTo(aCards.Mid(startPoint,size), <a class="code" href="class_c_card_game_dealer.html#1e76fa4b839e979cb5f83346ed8d1ad4">iRemoteNames</a>[i], 0, status);
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<a name="l00143"></a>00143                         User::WaitForRequest(status);
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<a name="l00144"></a>00144                         User::LeaveIfError(status.Int());
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<a name="l00145"></a>00145                         startPoint = size+startPoint;
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<a name="l00146"></a>00146                         }
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<a name="l00147"></a>00147                 }
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<a name="l00148"></a>00148
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<a name="l00149"></a>00149         }
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</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Thu Jan 21 10:32:57 2010 for TB10.1 Example Applications by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address>
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</body>
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</html>
FCL/sftools/depl/docscontent