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<h1>examples/Base/ArraysAndLists/DynamicArrays/DynamicArrays.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">// Examples to demonstrate arrays</span>
<a name="l00015"></a>00015 <span class="comment">//</span>
<a name="l00016"></a>00016
<a name="l00017"></a>00017 <span class="preprocessor">#include "CommonFramework.h"</span>
<a name="l00018"></a>00018 <span class="preprocessor">#include <e32math.h></span>
<a name="l00019"></a>00019 <span class="preprocessor">#include <e32std.h></span>
<a name="l00020"></a>00020
<a name="l00021"></a>00021 _LIT(KMsgNewLine,<span class="stringliteral">"\n"</span>);
<a name="l00022"></a>00022 _LIT(KMsgPressAnyKey,<span class="stringliteral">" (press any key to continue)\n"</span>);
<a name="l00023"></a>00023 _LIT(KFormat1,<span class="stringliteral">"X%u"</span>);
<a name="l00024"></a>00024
<a name="l00025"></a>00025 <span class="keyword">const</span> TText* firstElement = _S(<span class="stringliteral">"DynamicArray: first"</span>);
<a name="l00026"></a>00026 <span class="keyword">const</span> TText* secondElement = _S(<span class="stringliteral">"Example Code: second"</span>);
<a name="l00027"></a>00027 <span class="keyword">const</span> TText* thirdElement = _S(<span class="stringliteral">"ArrayKeys Ex: third"</span>);
<a name="l00028"></a>00028
<a name="l00029"></a>00029 <span class="comment">//</span>
<a name="l00030"></a>00030 <span class="comment">// A T type class used in the example demonstrating the:</span>
<a name="l00031"></a>00031 <span class="comment">// CArrayFixFlat class</span>
<a name="l00032"></a>00032 <span class="comment">//</span>
<a name="l00033"></a>00033 <span class="keyword">class </span>TElement
<a name="l00034"></a>00034 {
<a name="l00035"></a>00035 <span class="keyword">public</span> :
<a name="l00036"></a>00036 TElement();
<a name="l00037"></a>00037 <span class="keyword">public</span> :
<a name="l00038"></a>00038 TBuf<4> iData;
<a name="l00039"></a>00039 };
<a name="l00040"></a>00040
<a name="l00041"></a>00041 TElement::TElement()
<a name="l00042"></a>00042 {
<a name="l00043"></a>00043 _LIT(KTextBase,<span class="stringliteral">"BASE"</span>);
<a name="l00044"></a>00044 iData = KTextBase;
<a name="l00045"></a>00045 }
<a name="l00046"></a>00046
<a name="l00047"></a>00047 <span class="keyword">class </span>CArrayElement
<a name="l00048"></a>00048 {
<a name="l00049"></a>00049 <span class="keyword">public</span> :
<a name="l00050"></a>00050 CArrayElement();
<a name="l00051"></a>00051 TBool operator==(<span class="keyword">const</span> CArrayElement& aElement) <span class="keyword">const</span>;
<a name="l00052"></a>00052 <span class="keyword">public</span> :
<a name="l00053"></a>00053 TBuf<4> iData;
<a name="l00054"></a>00054 };
<a name="l00055"></a>00055
<a name="l00056"></a>00056 CArrayElement::CArrayElement()
<a name="l00057"></a>00057 {
<a name="l00058"></a>00058 _LIT(KTextBase,<span class="stringliteral">"BASE"</span>);
<a name="l00059"></a>00059 iData = KTextBase;
<a name="l00060"></a>00060 }
<a name="l00061"></a>00061
<a name="l00062"></a>00062 TBool CArrayElement::operator==(<span class="keyword">const</span> CArrayElement& aElement)<span class="keyword"> const</span>
<a name="l00063"></a>00063 <span class="keyword"> </span>{
<a name="l00064"></a>00064 <span class="keywordflow">return</span> (iData == aElement.iData);
<a name="l00065"></a>00065 }
<a name="l00066"></a>00066
<a name="l00067"></a>00067 <span class="comment">//</span>
<a name="l00068"></a>00068 <span class="comment">// A CBase derived class used in the example demonstrating the CArrayPtrFlat</span>
<a name="l00069"></a>00069 <span class="comment">// array</span>
<a name="l00070"></a>00070 <span class="comment">//</span>
<a name="l00071"></a>00071 <span class="keyword">class </span>CElement : <span class="keyword">public</span> CBase
<a name="l00072"></a>00072 {
<a name="l00073"></a>00073 <span class="keyword">public</span> :
<a name="l00074"></a>00074 CElement();
<a name="l00075"></a>00075 ~CElement();
<a name="l00076"></a>00076 <span class="keywordtype">void</span> SetTextL(<span class="keyword">const</span> TDesC& aText);
<a name="l00077"></a>00077 <span class="keyword">public</span> :
<a name="l00078"></a>00078 HBufC* iBuf;
<a name="l00079"></a>00079 };
<a name="l00080"></a>00080
<a name="l00081"></a>00081 CElement::CElement()
<a name="l00082"></a>00082 {
<a name="l00083"></a>00083 }
<a name="l00084"></a>00084
<a name="l00085"></a>00085 CElement::~CElement()
<a name="l00086"></a>00086 {
<a name="l00087"></a>00087 <span class="keyword">delete</span> iBuf;
<a name="l00088"></a>00088 }
<a name="l00089"></a>00089
<a name="l00094"></a>00094 <span class="keywordtype">void</span> CElement::SetTextL(<span class="keyword">const</span> TDesC& aText)
<a name="l00095"></a>00095 {
<a name="l00096"></a>00096 <span class="keywordflow">if</span> (!iBuf)
<a name="l00097"></a>00097 {
<a name="l00098"></a>00098 <span class="comment">// The buffer is not created.</span>
<a name="l00099"></a>00099 <span class="comment">// Hence, create the heap buffer.</span>
<a name="l00100"></a>00100 <span class="comment">// Set the length of CElement::iBuf to the length of aText.</span>
<a name="l00101"></a>00101 iBuf = HBufC::NewL(aText.Length());
<a name="l00102"></a>00102 }
<a name="l00103"></a>00103
<a name="l00104"></a>00104 <span class="keywordflow">else</span> <span class="keywordflow">if</span>(iBuf->Length() != aText.Length() )
<a name="l00105"></a>00105 {
<a name="l00106"></a>00106 <span class="comment">// The Buffer exists but is a different size to the input text.</span>
<a name="l00107"></a>00107 iBuf = iBuf->ReAllocL(aText.Length());
<a name="l00108"></a>00108 }
<a name="l00109"></a>00109 <span class="comment">// Copy the contents of aText to iBuf.</span>
<a name="l00110"></a>00110 *iBuf = aText;
<a name="l00111"></a>00111 }
<a name="l00112"></a>00112
<a name="l00113"></a>00113 TInt Order64Bit(<span class="keyword">const</span> TInt64& aLeft, <span class="keyword">const</span> TInt64& aRight)
<a name="l00114"></a>00114 {
<a name="l00115"></a>00115 <span class="keywordflow">if</span> (aLeft<aRight)
<a name="l00116"></a>00116 <span class="keywordflow">return</span> -1;
<a name="l00117"></a>00117 <span class="keywordflow">if</span> (aLeft==aRight)
<a name="l00118"></a>00118 <span class="keywordflow">return</span> 0;
<a name="l00119"></a>00119 <span class="keywordflow">return</span> 1;
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121
<a name="l00128"></a>00128 <span class="keyword">class </span>TIntPtrElement
<a name="l00129"></a>00129 {
<a name="l00130"></a>00130 <span class="keyword">public</span> :
<a name="l00131"></a>00131 TIntPtrElement();
<a name="l00132"></a>00132 <span class="keywordtype">void</span> SetIntPtr(TInt* aPtr);
<a name="l00133"></a>00133 <span class="keyword">public</span> :
<a name="l00134"></a>00134 TBuf<4> iData;
<a name="l00139"></a>00139 TInt* iIntPtr;
<a name="l00140"></a>00140 };
<a name="l00141"></a>00141
<a name="l00145"></a>00145 TIntPtrElement::TIntPtrElement()
<a name="l00146"></a>00146 {
<a name="l00147"></a>00147 _LIT(KTextBase,<span class="stringliteral">"BASE"</span>);
<a name="l00148"></a>00148 iData = KTextBase;
<a name="l00149"></a>00149 }
<a name="l00150"></a>00150
<a name="l00155"></a>00155 <span class="keywordtype">void</span> TIntPtrElement::SetIntPtr(TInt* aPtr)
<a name="l00156"></a>00156 {
<a name="l00157"></a>00157 iIntPtr = aPtr;
<a name="l00158"></a>00158 }
<a name="l00166"></a>00166 <span class="keyword">class </span>TKeyTIntPtr : <span class="keyword">public</span> TKeyArrayFix
<a name="l00167"></a>00167 {
<a name="l00168"></a>00168 <span class="keyword">public</span>:
<a name="l00169"></a>00169 TKeyTIntPtr(TInt aOffset, TKeyCmpText aType);
<a name="l00170"></a>00170 TKeyTIntPtr(TInt aOffset, TKeyCmpNumeric aType);
<a name="l00171"></a>00171 TAny* At(TInt aIndex);
<a name="l00172"></a>00172 };
<a name="l00173"></a>00173
<a name="l00179"></a>00179 TKeyTIntPtr::TKeyTIntPtr(TInt aOffset, TKeyCmpText aType):TKeyArrayFix(aOffset,aType)
<a name="l00180"></a>00180 {
<a name="l00181"></a>00181 }
<a name="l00182"></a>00182
<a name="l00187"></a>00187 TKeyTIntPtr::TKeyTIntPtr(TInt aOffset, TKeyCmpNumeric aType):TKeyArrayFix(aOffset,aType)
<a name="l00188"></a>00188 {
<a name="l00189"></a>00189 }
<a name="l00190"></a>00190
<a name="l00197"></a>00197 TAny* TKeyTIntPtr::At(TInt aIndex)
<a name="l00198"></a>00198 {
<a name="l00199"></a>00199 <span class="keywordflow">if</span> (aIndex==KIndexPtr)
<a name="l00200"></a>00200 {
<a name="l00201"></a>00201 <span class="keywordflow">return</span>((TUint8 *)iPtr+iKeyOffset);
<a name="l00202"></a>00202 }
<a name="l00203"></a>00203 <span class="comment">// Get the address of the array element.</span>
<a name="l00204"></a>00204 TIntPtrElement* ptr = (TIntPtrElement *)(iBase->Ptr(aIndex*<span class="keyword">sizeof</span>(TIntPtrElement)).Ptr()+iKeyOffset);
<a name="l00205"></a>00205 <span class="comment">// The TIntPtrElement::iIntPtr points to the key.</span>
<a name="l00206"></a>00206 <span class="comment">// Return the key.</span>
<a name="l00207"></a>00207 <span class="keywordflow">return</span>(ptr->iIntPtr);
<a name="l00208"></a>00208 }
<a name="l00209"></a>00209
<a name="l00214"></a>00214 <span class="keywordtype">void</span> PrintFixIntPtrArray(CArrayFixFlat<TIntPtrElement>& aFixFlat)
<a name="l00215"></a>00215 {
<a name="l00216"></a>00216 _LIT(KMsgContentsIntPtr,<span class="stringliteral">"Contents of the array of TIntPtrElement objects.\n"</span>);
<a name="l00217"></a>00217 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgContentsIntPtr);
<a name="l00218"></a>00218 <span class="keywordflow">for</span> (TInt forix = 0; forix < aFixFlat.Count(); forix++)
<a name="l00219"></a>00219 {
<a name="l00220"></a>00220 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00221"></a>00221 _LIT(KMsgBuf,<span class="stringliteral">"Index: %d\n Descriptor:"</span>);
<a name="l00222"></a>00222 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgBuf,forix);
<a name="l00223"></a>00223 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(aFixFlat[forix].iData);
<a name="l00224"></a>00224 _LIT(KMsgInt,<span class="stringliteral">"\t\tInteger Value: %d"</span>);
<a name="l00225"></a>00225 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgInt,*(aFixFlat[forix].iIntPtr));
<a name="l00226"></a>00226 }
<a name="l00227"></a>00227 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229
<a name="l00234"></a>00234 <span class="keywordtype">void</span> PrintFixArray(CArrayFixFlat<TElement>& aFixFlat)
<a name="l00235"></a>00235 {
<a name="l00236"></a>00236 <span class="keywordflow">for</span> (TInt forix = 0; forix < aFixFlat.Count(); forix++)
<a name="l00237"></a>00237 {
<a name="l00238"></a>00238 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00239"></a>00239 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(aFixFlat[forix].iData);
<a name="l00240"></a>00240 }
<a name="l00241"></a>00241 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243
<a name="l00248"></a>00248 <span class="keywordtype">void</span> PrintPtrArray(CArrayPtrFlat<CElement>* aPtrFlat)
<a name="l00249"></a>00249 {
<a name="l00250"></a>00250 _LIT(KCommonFormat4,<span class="stringliteral">"\n%S"</span>);
<a name="l00251"></a>00251 <span class="keywordflow">for</span> (TInt forix = 0; forix < aPtrFlat->Count(); forix++)
<a name="l00252"></a>00252 {
<a name="l00253"></a>00253 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat4,((*aPtrFlat)[forix])->iBuf);
<a name="l00254"></a>00254 }
<a name="l00255"></a>00255 }
<a name="l00256"></a>00256
<a name="l00260"></a>00260 <span class="keyword">class </span>TMySwap : <span class="keyword">public</span> TSwap
<a name="l00261"></a>00261 {
<a name="l00262"></a>00262 <span class="keyword">public</span>:
<a name="l00263"></a>00263 TMySwap(CArrayFixFlat<TElement>* aArray);
<a name="l00264"></a>00264 <span class="keywordtype">void</span> Swap(TInt aLeft,TInt aRight);
<a name="l00265"></a>00265 <span class="keyword">private</span>:
<a name="l00266"></a>00266 <span class="comment">// The Swap() function is defined for this array.</span>
<a name="l00267"></a>00267 CArrayFixFlat<TElement>* iArray;
<a name="l00268"></a>00268 };
<a name="l00269"></a>00269
<a name="l00273"></a>00273 TMySwap::TMySwap(CArrayFixFlat<TElement>* aArray):iArray(aArray)
<a name="l00274"></a>00274 {
<a name="l00275"></a>00275 }
<a name="l00276"></a>00276
<a name="l00282"></a>00282 <span class="keywordtype">void</span> TMySwap::Swap(TInt aLeft,TInt aRight)
<a name="l00283"></a>00283 {
<a name="l00284"></a>00284 TBuf<4> tbuf(iArray->At(aLeft).iData);
<a name="l00285"></a>00285 iArray->At(aLeft).iData.Copy(iArray->At(aRight).iData);
<a name="l00286"></a>00286 iArray->At(aRight).iData.Copy(tbuf);
<a name="l00287"></a>00287 }
<a name="l00288"></a>00288
<a name="l00294"></a>00294 <span class="keywordtype">void</span> DemoPakArrayFindL(CArrayPak<TText>& aPakFlat)
<a name="l00295"></a>00295 {
<a name="l00296"></a>00296 <span class="comment">// Append TText strings to the aPakFlat array.</span>
<a name="l00297"></a>00297
<a name="l00298"></a>00298 <span class="comment">// The length of the string to be appended is increased by one</span>
<a name="l00299"></a>00299 <span class="comment">// to insert the '\0' character at the end of the TText string.</span>
<a name="l00300"></a>00300 <span class="comment">// This is needed as the '\0' character is absent in descriptors.</span>
<a name="l00301"></a>00301 aPakFlat.AppendL(*firstElement,(User::StringLength(firstElement)+1)*<span class="keyword">sizeof</span>(TText));
<a name="l00302"></a>00302
<a name="l00303"></a>00303 <span class="comment">// Insert the second element into the array.</span>
<a name="l00304"></a>00304 aPakFlat.AppendL(*secondElement,(User::StringLength(secondElement)+1)*<span class="keyword">sizeof</span>(TText));
<a name="l00305"></a>00305
<a name="l00306"></a>00306 <span class="comment">// Insert the third element into the array.</span>
<a name="l00307"></a>00307 aPakFlat.AppendL(*thirdElement,(User::StringLength(thirdElement)+1)*<span class="keyword">sizeof</span>(TText));
<a name="l00308"></a>00308
<a name="l00309"></a>00309 <span class="comment">// Print the array elements.</span>
<a name="l00310"></a>00310 _LIT(KCommonFormat7,<span class="stringliteral">"Array Contents"</span>);
<a name="l00311"></a>00311 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat7);
<a name="l00312"></a>00312 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00313"></a>00313 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00314"></a>00314
<a name="l00315"></a>00315 TInt length = aPakFlat.Count();
<a name="l00316"></a>00316 <span class="keywordflow">for</span>(TInt ix = 0; ix < length; ix++)
<a name="l00317"></a>00317 {
<a name="l00318"></a>00318 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(TPtrC(&aPakFlat[ix]));
<a name="l00319"></a>00319 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00320"></a>00320 }
<a name="l00321"></a>00321
<a name="l00322"></a>00322 <span class="comment">// Find an element in the array.</span>
<a name="l00323"></a>00323 _LIT(KMsgFind,<span class="stringliteral">"\n--->Find"</span>);
<a name="l00324"></a>00324 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgFind);
<a name="l00325"></a>00325 _LIT(KMsgFindElement,<span class="stringliteral">"\nSearching the array for:"</span>);
<a name="l00326"></a>00326 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgFindElement);
<a name="l00327"></a>00327
<a name="l00328"></a>00328 <span class="comment">// The descriptor, buf contains the string "Code".</span>
<a name="l00329"></a>00329 <span class="comment">// The CArrayPak::Find() function will try to find this string in the array.</span>
<a name="l00330"></a>00330 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(TPtrC(thirdElement));
<a name="l00331"></a>00331
<a name="l00332"></a>00332 <span class="comment">// The key to find the element.</span>
<a name="l00333"></a>00333 <span class="comment">// The length of the key is set to 12.</span>
<a name="l00334"></a>00334 <span class="comment">// Thus, first 12 characters of all strings are compared with the key.</span>
<a name="l00335"></a>00335 TKeyArrayPak keypak(0,ECmpNormal,12);
<a name="l00336"></a>00336
<a name="l00337"></a>00337 <span class="comment">// Initialise the index to -1.</span>
<a name="l00338"></a>00338 TInt index = -1;
<a name="l00339"></a>00339
<a name="l00340"></a>00340 <span class="comment">// Perform the search.</span>
<a name="l00341"></a>00341 <span class="keywordflow">if</span>(aPakFlat.Find(*thirdElement,keypak,index) == 0)
<a name="l00342"></a>00342 {
<a name="l00343"></a>00343 <span class="comment">// Successful search.</span>
<a name="l00344"></a>00344 <span class="comment">// The index variable holds the index of the element found.</span>
<a name="l00345"></a>00345 _LIT(KElementFound,<span class="stringliteral">"\nElement found at %d\n"</span>);
<a name="l00346"></a>00346 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KElementFound,index);
<a name="l00347"></a>00347 }
<a name="l00348"></a>00348 <span class="keywordflow">else</span>
<a name="l00349"></a>00349 {
<a name="l00350"></a>00350 <span class="comment">// Unsuccessful search.</span>
<a name="l00351"></a>00351 <span class="comment">// The element is not found.</span>
<a name="l00352"></a>00352 _LIT(KElementNotFound,<span class="stringliteral">"\nElement not found"</span>);
<a name="l00353"></a>00353 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KElementNotFound);
<a name="l00354"></a>00354 }
<a name="l00355"></a>00355 }
<a name="l00356"></a>00356
<a name="l00362"></a>00362 <span class="keywordtype">void</span> DemoVarArraySortL(CArrayVar<TText>& aVarFlat)
<a name="l00363"></a>00363 {
<a name="l00364"></a>00364 <span class="comment">// Append TText strings to the aVarFlat array.</span>
<a name="l00365"></a>00365
<a name="l00366"></a>00366 <span class="comment">// The length of the string to be appended is increased by one</span>
<a name="l00367"></a>00367 <span class="comment">// to insert the '\0' character at the end of the TText string.</span>
<a name="l00368"></a>00368 <span class="comment">// This is needed as the '\0' character is absent in descriptors.</span>
<a name="l00369"></a>00369 aVarFlat.AppendL(*firstElement,(User::StringLength(firstElement)+1)*<span class="keyword">sizeof</span>(TText));
<a name="l00370"></a>00370
<a name="l00371"></a>00371 <span class="comment">// Insert the second and third elements into the array.</span>
<a name="l00372"></a>00372 aVarFlat.AppendL(*secondElement,(User::StringLength(secondElement)+1)*<span class="keyword">sizeof</span>(TText));
<a name="l00373"></a>00373 aVarFlat.AppendL(*thirdElement,(User::StringLength(thirdElement)+1)*<span class="keyword">sizeof</span>(TText));
<a name="l00374"></a>00374
<a name="l00375"></a>00375 <span class="comment">// Print the array elements.</span>
<a name="l00376"></a>00376 _LIT(KCommonFormat6,<span class="stringliteral">"Array Contents [Before Sort]"</span>);
<a name="l00377"></a>00377 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat6);
<a name="l00378"></a>00378
<a name="l00379"></a>00379 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00380"></a>00380 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00381"></a>00381
<a name="l00382"></a>00382 TInt length = aVarFlat.Count();
<a name="l00383"></a>00383 <span class="keywordflow">for</span>(TInt ix = 0; ix < length; ix++)
<a name="l00384"></a>00384 {
<a name="l00385"></a>00385 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(TPtrC(&aVarFlat[ix]));
<a name="l00386"></a>00386 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00387"></a>00387 }
<a name="l00388"></a>00388
<a name="l00389"></a>00389 <span class="comment">// The key to find the element.</span>
<a name="l00390"></a>00390 <span class="comment">// The length of the key is set to 12.</span>
<a name="l00391"></a>00391 <span class="comment">// Thus, first 12 characters of the string are compared with the key.</span>
<a name="l00392"></a>00392 TKeyArrayVar keyvar(0,ECmpFolded,12);
<a name="l00393"></a>00393
<a name="l00394"></a>00394 <span class="comment">// Sort the array using the TKeyArrayVar key.</span>
<a name="l00395"></a>00395 aVarFlat.Sort(keyvar);
<a name="l00396"></a>00396
<a name="l00397"></a>00397 <span class="comment">// Print the sorted array elements.</span>
<a name="l00398"></a>00398 _LIT(KMsgSort,<span class="stringliteral">"\n--->Sort"</span>);
<a name="l00399"></a>00399 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgSort);
<a name="l00400"></a>00400 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00401"></a>00401 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00402"></a>00402
<a name="l00403"></a>00403 <span class="keywordflow">for</span>(TInt ix = 0; ix < length; ix++)
<a name="l00404"></a>00404 {
<a name="l00405"></a>00405 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(TPtrC(&aVarFlat[ix]));
<a name="l00406"></a>00406 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00407"></a>00407 }
<a name="l00408"></a>00408 }
<a name="l00413"></a>00413 <span class="keywordtype">void</span> DemoFlatArrayL(CArrayFixFlat<TElement>& aFixFlat)
<a name="l00414"></a>00414 {
<a name="l00415"></a>00415 TElement theElement;
<a name="l00416"></a>00416
<a name="l00417"></a>00417 TInt value;
<a name="l00418"></a>00418 <span class="keywordflow">for</span> (value = 0; value < 3; value++)
<a name="l00419"></a>00419 {
<a name="l00420"></a>00420 theElement.iData.Format(KFormat1,value);
<a name="l00421"></a>00421 aFixFlat.AppendL(theElement);
<a name="l00422"></a>00422 }
<a name="l00423"></a>00423
<a name="l00424"></a>00424 <span class="comment">// Show length of each element.</span>
<a name="l00425"></a>00425 <span class="comment">// The length of each element of the array is the size of the</span>
<a name="l00426"></a>00426 <span class="comment">// TElement class.</span>
<a name="l00427"></a>00427 _LIT(KCommonFormat2,<span class="stringliteral">"\nLength()=%d"</span>);
<a name="l00428"></a>00428 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat2,aFixFlat.Length());
<a name="l00429"></a>00429
<a name="l00430"></a>00430 <span class="comment">// Show number of elements.</span>
<a name="l00431"></a>00431 _LIT(KCommonFormat3,<span class="stringliteral">"\nCount()=%d"</span>);
<a name="l00432"></a>00432 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat3,aFixFlat.Count());
<a name="l00433"></a>00433
<a name="l00434"></a>00434 <span class="comment">// Show each element</span>
<a name="l00435"></a>00435 PrintFixArray(aFixFlat);
<a name="l00436"></a>00436 <span class="comment">//</span>
<a name="l00437"></a>00437 <span class="comment">// InsertL * * * * * * * * *</span>
<a name="l00438"></a>00438 <span class="comment">//</span>
<a name="l00439"></a>00439 _LIT(KMsgInsert,<span class="stringliteral">"\n\n--->InsertL"</span>);
<a name="l00440"></a>00440 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgInsert);
<a name="l00441"></a>00441 _LIT(KMsgPressAnyKey,<span class="stringliteral">" (press any key to continue)\n"</span>);
<a name="l00442"></a>00442 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00443"></a>00443 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00444"></a>00444
<a name="l00445"></a>00445 <span class="comment">// Insert elements</span>
<a name="l00446"></a>00446 <span class="comment">// ... at the beginning,</span>
<a name="l00447"></a>00447 _LIT(KMsgBEG,<span class="stringliteral">"BEG"</span>);
<a name="l00448"></a>00448 theElement.iData = KMsgBEG;
<a name="l00449"></a>00449 aFixFlat.InsertL(0,theElement);
<a name="l00450"></a>00450
<a name="l00451"></a>00451 <span class="comment">// ... near the middle,</span>
<a name="l00452"></a>00452 _LIT(KMsgMID,<span class="stringliteral">"MID"</span>);
<a name="l00453"></a>00453 theElement.iData = KMsgMID;
<a name="l00454"></a>00454 aFixFlat.InsertL(2,theElement);
<a name="l00455"></a>00455
<a name="l00456"></a>00456 <span class="comment">// ... at the end.</span>
<a name="l00457"></a>00457 <span class="comment">// This is the same as using the AppendL() function</span>
<a name="l00458"></a>00458 _LIT(KMsgEND,<span class="stringliteral">"END"</span>);
<a name="l00459"></a>00459 theElement.iData = KMsgEND;
<a name="l00460"></a>00460 aFixFlat.InsertL(aFixFlat.Count(),theElement);
<a name="l00461"></a>00461
<a name="l00462"></a>00462 <span class="comment">// Show number of elements</span>
<a name="l00463"></a>00463 _LIT(KCommonFormat5,<span class="stringliteral">"Count()=%d"</span>);
<a name="l00464"></a>00464 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aFixFlat.Count());
<a name="l00465"></a>00465
<a name="l00466"></a>00466 <span class="comment">// Show each element</span>
<a name="l00467"></a>00467 PrintFixArray(aFixFlat);
<a name="l00468"></a>00468
<a name="l00469"></a>00469 <span class="comment">// Define the key to sort the array.</span>
<a name="l00470"></a>00470 <span class="comment">// The data member of the TElement class, iData, is the key.</span>
<a name="l00471"></a>00471 TKeyArrayFix keyfix(_FOFF(TElement,iData),ECmpFolded);
<a name="l00472"></a>00472
<a name="l00473"></a>00473 <span class="comment">// Sort the array.</span>
<a name="l00474"></a>00474 aFixFlat.Sort(keyfix);
<a name="l00475"></a>00475
<a name="l00476"></a>00476 <span class="comment">// Print the sorted array.</span>
<a name="l00477"></a>00477 _LIT(KMsgSort,<span class="stringliteral">"\n--->Sort"</span>);
<a name="l00478"></a>00478 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgSort);
<a name="l00479"></a>00479 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00480"></a>00480 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00481"></a>00481
<a name="l00482"></a>00482 PrintFixArray(aFixFlat);
<a name="l00483"></a>00483
<a name="l00484"></a>00484 <span class="comment">//</span>
<a name="l00485"></a>00485 <span class="comment">// Delete * * * * * * * * *</span>
<a name="l00486"></a>00486 <span class="comment">//</span>
<a name="l00487"></a>00487 _LIT(KMsgDelete,<span class="stringliteral">"\n\n--->Delete"</span>);
<a name="l00488"></a>00488 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgDelete);
<a name="l00489"></a>00489 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00490"></a>00490 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00491"></a>00491
<a name="l00492"></a>00492 <span class="comment">// Delete the 2nd, 4th and 5th elements. Note:</span>
<a name="l00493"></a>00493 <span class="comment">//</span>
<a name="l00494"></a>00494 <span class="comment">// 1. We use position to identify the elements (i.e. offset)</span>
<a name="l00495"></a>00495 <span class="comment">// 2. As elements are deleted, the position of other</span>
<a name="l00496"></a>00496 <span class="comment">// elements changes.</span>
<a name="l00497"></a>00497
<a name="l00498"></a>00498 aFixFlat.Delete(1); <span class="comment">// delete the 2nd</span>
<a name="l00499"></a>00499 aFixFlat.Delete(2,2); <span class="comment">// delete what are now the 3rd and 4th</span>
<a name="l00500"></a>00500
<a name="l00501"></a>00501 aFixFlat.Compress(); <span class="comment">// compress the array</span>
<a name="l00502"></a>00502
<a name="l00503"></a>00503 <span class="comment">// Show number of elements</span>
<a name="l00504"></a>00504 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aFixFlat.Count());
<a name="l00505"></a>00505
<a name="l00506"></a>00506 <span class="comment">// Show each element</span>
<a name="l00507"></a>00507 PrintFixArray(aFixFlat);
<a name="l00508"></a>00508 <span class="comment">//</span>
<a name="l00509"></a>00509 <span class="comment">// Reset * * * * * * * * *</span>
<a name="l00510"></a>00510 <span class="comment">//</span>
<a name="l00511"></a>00511 _LIT(KMsgReset,<span class="stringliteral">"\n\n--->Reset"</span>);
<a name="l00512"></a>00512 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgReset);
<a name="l00513"></a>00513 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00514"></a>00514 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00515"></a>00515
<a name="l00516"></a>00516 <span class="comment">// reset the array (i.e. empty it)</span>
<a name="l00517"></a>00517 aFixFlat.Reset();
<a name="l00518"></a>00518
<a name="l00519"></a>00519 <span class="comment">// Show number of elements</span>
<a name="l00520"></a>00520 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aFixFlat.Count());
<a name="l00521"></a>00521
<a name="l00522"></a>00522 <span class="comment">// Show each element</span>
<a name="l00523"></a>00523 PrintFixArray(aFixFlat);
<a name="l00524"></a>00524
<a name="l00525"></a>00525 <span class="comment">//</span>
<a name="l00526"></a>00526 <span class="comment">// ExpandL & ExtendL * * * * * * * * *</span>
<a name="l00527"></a>00527 <span class="comment">//</span>
<a name="l00528"></a>00528 _LIT(KMsgExpandExtend,<span class="stringliteral">"\n\n--->ExpandL & ExtendL"</span>);
<a name="l00529"></a>00529 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgExpandExtend);
<a name="l00530"></a>00530 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00531"></a>00531 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00532"></a>00532
<a name="l00533"></a>00533 <span class="comment">// re-build the array</span>
<a name="l00534"></a>00534 _LIT(KFormat6,<span class="stringliteral">"%u"</span>);
<a name="l00535"></a>00535 <span class="keywordflow">for</span> (value = 0; value < 3; value++)
<a name="l00536"></a>00536 {
<a name="l00537"></a>00537 theElement.iData.Format(KFormat6,value);
<a name="l00538"></a>00538 aFixFlat.AppendL(theElement);
<a name="l00539"></a>00539 }
<a name="l00540"></a>00540 <span class="comment">// Expand by constructing a new element at position 1.</span>
<a name="l00541"></a>00541 <span class="comment">// Extend the array.</span>
<a name="l00542"></a>00542 <span class="comment">//</span>
<a name="l00543"></a>00543 <span class="comment">// Note the use of the TElement default constructor</span>
<a name="l00544"></a>00544 <span class="comment">// in both cases</span>
<a name="l00545"></a>00545 aFixFlat.ExpandL(1);
<a name="l00546"></a>00546 aFixFlat.ExtendL();
<a name="l00547"></a>00547
<a name="l00548"></a>00548 <span class="comment">// Show number of elements</span>
<a name="l00549"></a>00549 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aFixFlat.Count());
<a name="l00550"></a>00550
<a name="l00551"></a>00551 <span class="comment">// Show each element</span>
<a name="l00552"></a>00552 PrintFixArray(aFixFlat);
<a name="l00553"></a>00553
<a name="l00554"></a>00554 <span class="comment">//</span>
<a name="l00555"></a>00555 <span class="comment">// ResizeL * * * * * * * * * * * *</span>
<a name="l00556"></a>00556 <span class="comment">//</span>
<a name="l00557"></a>00557 _LIT(KMsgResize,<span class="stringliteral">"\n\n--->ResizeL"</span>);
<a name="l00558"></a>00558 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgResize);
<a name="l00559"></a>00559 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00560"></a>00560 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00561"></a>00561
<a name="l00562"></a>00562 <span class="comment">// Resize the array so that it only contains</span>
<a name="l00563"></a>00563 <span class="comment">// one element</span>
<a name="l00564"></a>00564 aFixFlat.ResizeL(1);
<a name="l00565"></a>00565
<a name="l00566"></a>00566 <span class="comment">// Resize so that it contains 3 elements.</span>
<a name="l00567"></a>00567 <span class="comment">// The two new elements are bit-wise copies</span>
<a name="l00568"></a>00568 <span class="comment">// of a TElement object constructed using</span>
<a name="l00569"></a>00569 <span class="comment">// its default constructor.</span>
<a name="l00570"></a>00570 aFixFlat.ResizeL(3);
<a name="l00571"></a>00571
<a name="l00572"></a>00572 <span class="comment">// Resize so that it contains 5 elements.</span>
<a name="l00573"></a>00573 <span class="comment">// The two new elements are bit-wise copies of</span>
<a name="l00574"></a>00574 <span class="comment">// the TElement object passed through</span>
<a name="l00575"></a>00575 <span class="comment">// the reference.</span>
<a name="l00576"></a>00576 _LIT(KMsgXXX,<span class="stringliteral">"XXX"</span>);
<a name="l00577"></a>00577 theElement.iData = KMsgXXX;
<a name="l00578"></a>00578 aFixFlat.ResizeL(5,theElement);
<a name="l00579"></a>00579
<a name="l00580"></a>00580 <span class="comment">// Show number of elements</span>
<a name="l00581"></a>00581 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aFixFlat.Count());
<a name="l00582"></a>00582
<a name="l00583"></a>00583 <span class="comment">// Show each element</span>
<a name="l00584"></a>00584 PrintFixArray(aFixFlat);
<a name="l00585"></a>00585
<a name="l00586"></a>00586 <span class="comment">//</span>
<a name="l00587"></a>00587 <span class="comment">// SetReserveL * * * * * * * * * * * *</span>
<a name="l00588"></a>00588 <span class="comment">//</span>
<a name="l00589"></a>00589 _LIT(KMsgSetReserve,<span class="stringliteral">"\n\n--->SetReserveL"</span>);
<a name="l00590"></a>00590 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgSetReserve);
<a name="l00591"></a>00591 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00592"></a>00592 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00593"></a>00593
<a name="l00594"></a>00594 <span class="comment">// Reserve sufficient space to append another</span>
<a name="l00595"></a>00595 <span class="comment">// five elements.</span>
<a name="l00596"></a>00596 <span class="comment">// This function may leave if there is</span>
<a name="l00597"></a>00597 <span class="comment">// insufficient memory.</span>
<a name="l00598"></a>00598 <span class="comment">// NOTE: this does NOT increase the number of</span>
<a name="l00599"></a>00599 <span class="comment">// elements in the array.</span>
<a name="l00600"></a>00600 aFixFlat.SetReserveL(5);
<a name="l00601"></a>00601
<a name="l00602"></a>00602 <span class="comment">// We can now append five elements and be sure that</span>
<a name="l00603"></a>00603 <span class="comment">// no leave will occur.</span>
<a name="l00604"></a>00604 _LIT(KMsgDoubleAtoE,<span class="stringliteral">"AABBCCDDEE"</span>);
<a name="l00605"></a>00605 TBufC<10> source(KMsgDoubleAtoE);
<a name="l00606"></a>00606 TInt forix;
<a name="l00607"></a>00607 <span class="keywordflow">for</span> (forix = 0; forix < source.Length(); forix+=2)
<a name="l00608"></a>00608 {
<a name="l00609"></a>00609 theElement.iData = source.Mid(forix,2);
<a name="l00610"></a>00610 aFixFlat.AppendL(theElement);
<a name="l00611"></a>00611 }
<a name="l00612"></a>00612
<a name="l00613"></a>00613 <span class="comment">// Show number of elements</span>
<a name="l00614"></a>00614 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aFixFlat.Count());
<a name="l00615"></a>00615
<a name="l00616"></a>00616 <span class="comment">// Show each element</span>
<a name="l00617"></a>00617 PrintFixArray(aFixFlat);
<a name="l00618"></a>00618
<a name="l00619"></a>00619 <span class="comment">// An object of the TMySwap class.</span>
<a name="l00620"></a>00620 <span class="comment">// It is used to swap two elements of the array.</span>
<a name="l00621"></a>00621 TMySwap swap(&aFixFlat);
<a name="l00622"></a>00622
<a name="l00623"></a>00623 <span class="comment">// Swap the first and the last element of the array.</span>
<a name="l00624"></a>00624 swap.Swap(0,(aFixFlat.Count() - 1));
<a name="l00625"></a>00625
<a name="l00626"></a>00626 <span class="comment">// Print the array.</span>
<a name="l00627"></a>00627 _LIT(KMsgSwap,<span class="stringliteral">"\n--->Swap [First and Last element]"</span>);
<a name="l00628"></a>00628 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgSwap);
<a name="l00629"></a>00629 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00630"></a>00630 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00631"></a>00631
<a name="l00632"></a>00632 PrintFixArray(aFixFlat);
<a name="l00633"></a>00633 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00634"></a>00634 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00635"></a>00635 }
<a name="l00636"></a>00636
<a name="l00641"></a>00641 <span class="keywordtype">void</span> DemoPtrArrayL(CArrayPtrFlat<CElement>& aPtrFlat)
<a name="l00642"></a>00642 {
<a name="l00643"></a>00643 CElement* ptr;
<a name="l00644"></a>00644 ptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l00645"></a>00645 _LIT(KMsgFirstElement,<span class="stringliteral">"First Element"</span>);
<a name="l00646"></a>00646 ptr->SetTextL(KMsgFirstElement);
<a name="l00647"></a>00647 aPtrFlat.AppendL(ptr);
<a name="l00648"></a>00648
<a name="l00649"></a>00649
<a name="l00650"></a>00650 ptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l00651"></a>00651 _LIT(KMsgSecondElement,<span class="stringliteral">"Second Element"</span>);
<a name="l00652"></a>00652 ptr->SetTextL(KMsgSecondElement);
<a name="l00653"></a>00653 aPtrFlat.AppendL(ptr);
<a name="l00654"></a>00654
<a name="l00655"></a>00655
<a name="l00656"></a>00656 ptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l00657"></a>00657 _LIT(KMsgThirdElement,<span class="stringliteral">"Third Element"</span>);
<a name="l00658"></a>00658 ptr->SetTextL(KMsgThirdElement);
<a name="l00659"></a>00659 aPtrFlat.AppendL(ptr);
<a name="l00660"></a>00660
<a name="l00661"></a>00661
<a name="l00662"></a>00662 <span class="comment">// Show length of each element</span>
<a name="l00663"></a>00663 _LIT(KCommonFormat2,<span class="stringliteral">"\nLength()=%d"</span>);
<a name="l00664"></a>00664 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat2,aPtrFlat.Length());
<a name="l00665"></a>00665
<a name="l00666"></a>00666 <span class="comment">// Show number of elements</span>
<a name="l00667"></a>00667 _LIT(KCommonFormat3,<span class="stringliteral">"\nCount()=%d"</span>);
<a name="l00668"></a>00668 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat3,aPtrFlat.Count());
<a name="l00669"></a>00669
<a name="l00670"></a>00670 <span class="comment">// Show each element</span>
<a name="l00671"></a>00671 PrintPtrArray(&aPtrFlat);
<a name="l00672"></a>00672 <span class="comment">//</span>
<a name="l00673"></a>00673 <span class="comment">// InsertL * * * * * * * * *</span>
<a name="l00674"></a>00674 <span class="comment">//</span>
<a name="l00675"></a>00675 _LIT(KMsgInsert,<span class="stringliteral">"\n\n--->InsertL"</span>);
<a name="l00676"></a>00676 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgInsert);
<a name="l00677"></a>00677 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00678"></a>00678 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00679"></a>00679
<a name="l00680"></a>00680 <span class="comment">// Insert an element at the beginning</span>
<a name="l00681"></a>00681 <span class="comment">// of the array.</span>
<a name="l00682"></a>00682
<a name="l00683"></a>00683 ptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l00684"></a>00684 _LIT(KMsgInsertedBeg,<span class="stringliteral">"Inserted @ beginning Element"</span>);
<a name="l00685"></a>00685 ptr->SetTextL(KMsgInsertedBeg);
<a name="l00686"></a>00686 aPtrFlat.InsertL(0,ptr);
<a name="l00687"></a>00687
<a name="l00688"></a>00688 <span class="comment">// Show number of elements</span>
<a name="l00689"></a>00689 _LIT(KCommonFormat5,<span class="stringliteral">"Count()=%d"</span>);
<a name="l00690"></a>00690 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aPtrFlat.Count());
<a name="l00691"></a>00691
<a name="l00692"></a>00692 <span class="comment">// Show each element</span>
<a name="l00693"></a>00693 PrintPtrArray(&aPtrFlat);
<a name="l00694"></a>00694
<a name="l00695"></a>00695 <span class="comment">//</span>
<a name="l00696"></a>00696 <span class="comment">// Delete * * * * * * * * *</span>
<a name="l00697"></a>00697 <span class="comment">//</span>
<a name="l00698"></a>00698 _LIT(KMsgDelete,<span class="stringliteral">"\n\n--->Delete"</span>);
<a name="l00699"></a>00699 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgDelete);
<a name="l00700"></a>00700 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00701"></a>00701 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00702"></a>00702
<a name="l00703"></a>00703 <span class="comment">// Delete the last two elements from the array BUT</span>
<a name="l00704"></a>00704 <span class="comment">// first we must get a reference to those elements</span>
<a name="l00705"></a>00705 <span class="comment">// (pointers to CElement objects) otherwise</span>
<a name="l00706"></a>00706 <span class="comment">// the CElement objects are orphaned.</span>
<a name="l00707"></a>00707 <span class="comment">//</span>
<a name="l00708"></a>00708 <span class="comment">// Here, we destroy those CElement objects.</span>
<a name="l00709"></a>00709 <span class="comment">//</span>
<a name="l00710"></a>00710 <span class="comment">// There are two alternative ways of indexing into</span>
<a name="l00711"></a>00711 <span class="comment">// the array, using either At() or the [] operator</span>
<a name="l00712"></a>00712
<a name="l00713"></a>00713 <span class="comment">// NOTE that the code below could be compressed to:</span>
<a name="l00714"></a>00714 <span class="comment">//</span>
<a name="l00715"></a>00715 <span class="comment">// delete (*ptrflat)[aPtrFlat.Count()-1];</span>
<a name="l00716"></a>00716 <span class="comment">// delete (*ptrflat)[aPtrFlat.Count()-2];</span>
<a name="l00717"></a>00717 <span class="comment">// aPtrFlat.Delete(aPtrFlat.Count()-2,2);</span>
<a name="l00718"></a>00718
<a name="l00719"></a>00719 TInt index = -1;
<a name="l00720"></a>00720 index = aPtrFlat.Count();
<a name="l00721"></a>00721
<a name="l00722"></a>00722 ptr = aPtrFlat[--index];
<a name="l00723"></a>00723 aPtrFlat.Delete(index);
<a name="l00724"></a>00724 <span class="keyword">delete</span> ptr;
<a name="l00725"></a>00725
<a name="l00726"></a>00726 ptr = aPtrFlat.At(--index);
<a name="l00727"></a>00727 aPtrFlat.Delete(index);
<a name="l00728"></a>00728 <span class="keyword">delete</span> ptr;
<a name="l00729"></a>00729
<a name="l00730"></a>00730 <span class="comment">// Show number of elements</span>
<a name="l00731"></a>00731 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aPtrFlat.Count());
<a name="l00732"></a>00732
<a name="l00733"></a>00733 <span class="comment">// Show each element</span>
<a name="l00734"></a>00734 PrintPtrArray(&aPtrFlat);
<a name="l00735"></a>00735
<a name="l00736"></a>00736 <span class="comment">//</span>
<a name="l00737"></a>00737 <span class="comment">// At & the [] operator * * * * * * * * * * * *</span>
<a name="l00738"></a>00738 <span class="comment">//</span>
<a name="l00739"></a>00739 _LIT(KMsgAt,<span class="stringliteral">"\n\n--->At() and the operator []"</span>);
<a name="l00740"></a>00740 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgAt);
<a name="l00741"></a>00741 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00742"></a>00742 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00743"></a>00743
<a name="l00744"></a>00744 <span class="comment">// Make a change to the object pointed to by the first element in the array</span>
<a name="l00745"></a>00745 _LIT(KMsgNewTextFirst,<span class="stringliteral">"New text for the first CElement"</span>);
<a name="l00746"></a>00746 _LIT(KMsgNewTextSecond,<span class="stringliteral">"New text for the second CElement"</span>);
<a name="l00747"></a>00747 aPtrFlat[0]->SetTextL(KMsgNewTextFirst);
<a name="l00748"></a>00748 aPtrFlat.At(1)->SetTextL(KMsgNewTextSecond);
<a name="l00749"></a>00749
<a name="l00750"></a>00750 <span class="comment">// Show number of elements</span>
<a name="l00751"></a>00751 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aPtrFlat.Count());
<a name="l00752"></a>00752
<a name="l00753"></a>00753 <span class="comment">// Show each element</span>
<a name="l00754"></a>00754 PrintPtrArray(&aPtrFlat);
<a name="l00755"></a>00755
<a name="l00756"></a>00756 <span class="comment">//</span>
<a name="l00757"></a>00757 <span class="comment">// ResetAndDestroy * * * * * * * * *</span>
<a name="l00758"></a>00758 <span class="comment">//</span>
<a name="l00759"></a>00759 _LIT(KMsgResetDestroy,<span class="stringliteral">"\n\n--->ResetAndDestroy"</span>);
<a name="l00760"></a>00760 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgResetDestroy);
<a name="l00761"></a>00761 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00762"></a>00762 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00763"></a>00763
<a name="l00764"></a>00764 <span class="comment">// destroy all of the CElement objects and reset the</span>
<a name="l00765"></a>00765 <span class="comment">// array.</span>
<a name="l00766"></a>00766 aPtrFlat.ResetAndDestroy();
<a name="l00767"></a>00767
<a name="l00768"></a>00768 <span class="comment">// Show number of elements</span>
<a name="l00769"></a>00769 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat3,aPtrFlat.Count());
<a name="l00770"></a>00770
<a name="l00771"></a>00771 <span class="comment">// Show each element</span>
<a name="l00772"></a>00772 PrintPtrArray(&aPtrFlat);
<a name="l00773"></a>00773
<a name="l00774"></a>00774 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l00775"></a>00775 }
<a name="l00776"></a>00776
<a name="l00782"></a>00782 <span class="keywordtype">void</span> DemoTKeyDerivedL(CArrayFixFlat<TIntPtrElement>& aFixFlat)
<a name="l00783"></a>00783 {
<a name="l00784"></a>00784 TIntPtrElement theIntPtrElement;
<a name="l00785"></a>00785
<a name="l00786"></a>00786 <span class="comment">// Create pointers to integers.</span>
<a name="l00787"></a>00787 TInt* ptrInt1 = <span class="keyword">new</span>(ELeave)TInt(10);
<a name="l00788"></a>00788 CleanupStack::PushL(ptrInt1);
<a name="l00789"></a>00789 TInt* ptrInt2 = <span class="keyword">new</span>(ELeave)TInt(0);
<a name="l00790"></a>00790 CleanupStack::PushL(ptrInt2);
<a name="l00791"></a>00791 TInt* ptrInt3 = <span class="keyword">new</span>(ELeave)TInt(5);
<a name="l00792"></a>00792 CleanupStack::PushL(ptrInt3);
<a name="l00793"></a>00793
<a name="l00794"></a>00794 <span class="comment">// Create an array of pointers.</span>
<a name="l00795"></a>00795 TInt* ptrInt[3] = {ptrInt1,ptrInt2,ptrInt3};
<a name="l00796"></a>00796
<a name="l00797"></a>00797 <span class="comment">// Append elements into the ptrElementArray array.</span>
<a name="l00798"></a>00798 TInt value;
<a name="l00799"></a>00799 <span class="keywordflow">for</span> (value = 0; value < 3; value++)
<a name="l00800"></a>00800 {
<a name="l00801"></a>00801 theIntPtrElement.iData.Format(KFormat1,value);
<a name="l00802"></a>00802 theIntPtrElement.SetIntPtr(ptrInt[value]);
<a name="l00803"></a>00803 aFixFlat.AppendL(theIntPtrElement);
<a name="l00804"></a>00804 }
<a name="l00805"></a>00805
<a name="l00806"></a>00806 <span class="comment">// Print the contents of the array.</span>
<a name="l00807"></a>00807 PrintFixIntPtrArray(aFixFlat);
<a name="l00808"></a>00808
<a name="l00809"></a>00809 <span class="comment">// Define the key to find an element in the array.</span>
<a name="l00810"></a>00810 <span class="comment">// Use the TKey derived class, TKeyTIntPtr to do this.</span>
<a name="l00811"></a>00811 TKeyTIntPtr keyIntPtr(_FOFF(TIntPtrElement,iIntPtr),ECmpTInt);
<a name="l00812"></a>00812
<a name="l00813"></a>00813 _LIT(KMsgFind,<span class="stringliteral">"\n--->Find"</span>);
<a name="l00814"></a>00814 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgFind);
<a name="l00815"></a>00815 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00816"></a>00816 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00817"></a>00817
<a name="l00818"></a>00818 <span class="comment">// Initialise to -1.</span>
<a name="l00819"></a>00819 <span class="comment">// Its value will be set to 0 if the Search is successful.</span>
<a name="l00820"></a>00820 TInt index = -1;
<a name="l00821"></a>00821
<a name="l00822"></a>00822 <span class="comment">// Perform the search.</span>
<a name="l00823"></a>00823 TInt res = aFixFlat.Find (
<a name="l00824"></a>00824 theIntPtrElement, <span class="comment">// The object whose</span>
<a name="l00825"></a>00825 <span class="comment">// key is used for comparison.</span>
<a name="l00826"></a>00826 keyIntPtr, <span class="comment">// The key object that</span>
<a name="l00827"></a>00827 <span class="comment">// defines the property of the key.</span>
<a name="l00828"></a>00828 index
<a name="l00829"></a>00829 );
<a name="l00830"></a>00830
<a name="l00831"></a>00831 <span class="keywordflow">if</span>(res == 0)
<a name="l00832"></a>00832 {
<a name="l00833"></a>00833 <span class="comment">// The index variable holds the index of the element found.</span>
<a name="l00834"></a>00834 _LIT(KElementFound,<span class="stringliteral">"\nElement found at index: %d\n"</span>);
<a name="l00835"></a>00835 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KElementFound,index);
<a name="l00836"></a>00836 }
<a name="l00837"></a>00837
<a name="l00838"></a>00838 <span class="keywordflow">else</span>
<a name="l00839"></a>00839 {
<a name="l00840"></a>00840 <span class="comment">// The element is not found.</span>
<a name="l00841"></a>00841 _LIT(KElementNotFound,<span class="stringliteral">"\nElement not found"</span>);
<a name="l00842"></a>00842 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KElementNotFound);
<a name="l00843"></a>00843 }
<a name="l00844"></a>00844
<a name="l00845"></a>00845 CleanupStack::PopAndDestroy(3, ptrInt1); <span class="comment">// ptrInt3, ptrInt2 and ptrInt1.</span>
<a name="l00846"></a>00846 }
<a name="l00847"></a>00847
<a name="l00852"></a>00852 <span class="keywordtype">void</span> DemoRArrayL(RArray<CArrayElement>& aArray)
<a name="l00853"></a>00853 {
<a name="l00854"></a>00854 CArrayElement arrayElement;
<a name="l00855"></a>00855
<a name="l00856"></a>00856 <span class="comment">//</span>
<a name="l00857"></a>00857 <span class="comment">// AppendL * * * * * * * * *</span>
<a name="l00858"></a>00858 <span class="comment">//</span>
<a name="l00859"></a>00859 _LIT(KMsgAppend,<span class="stringliteral">"\n\n--->AppendL"</span>);
<a name="l00860"></a>00860 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgAppend);
<a name="l00861"></a>00861
<a name="l00862"></a>00862 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00863"></a>00863 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00864"></a>00864
<a name="l00865"></a>00865 TInt value;
<a name="l00866"></a>00866 <span class="keywordflow">for</span> (value = 0; value < 3; value++)
<a name="l00867"></a>00867 {
<a name="l00868"></a>00868 <span class="comment">// Formats and copies text into this descriptor, replacing any existing data.</span>
<a name="l00869"></a>00869 arrayElement.iData.Format(KFormat1,value);
<a name="l00870"></a>00870 aArray.AppendL(arrayElement); <span class="comment">// leaves with one of the system wide error codes, if the operation fails.</span>
<a name="l00871"></a>00871 }
<a name="l00872"></a>00872
<a name="l00873"></a>00873 <span class="comment">// Show number of elements</span>
<a name="l00874"></a>00874 _LIT(KCommonFormat3,<span class="stringliteral">"\nCount()=%d"</span>);
<a name="l00875"></a>00875 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat3,aArray.Count());
<a name="l00876"></a>00876
<a name="l00877"></a>00877 <span class="comment">// Show each element</span>
<a name="l00878"></a>00878 TInt forix;
<a name="l00879"></a>00879 _LIT(KCommonFormat4,<span class="stringliteral">"\n%S"</span>);
<a name="l00880"></a>00880 <span class="keywordflow">for</span> (forix = 0; forix < aArray.Count(); forix++)
<a name="l00881"></a>00881 {
<a name="l00882"></a>00882 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat4,&(aArray)[forix].iData);
<a name="l00883"></a>00883 }
<a name="l00884"></a>00884
<a name="l00885"></a>00885 <span class="comment">//</span>
<a name="l00886"></a>00886 <span class="comment">// InsertL * * * * * * * * *</span>
<a name="l00887"></a>00887 <span class="comment">//</span>
<a name="l00888"></a>00888 _LIT(KMsgInsert,<span class="stringliteral">"\n\n--->InsertL"</span>);
<a name="l00889"></a>00889 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgInsert);
<a name="l00890"></a>00890 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00891"></a>00891 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00892"></a>00892
<a name="l00893"></a>00893 <span class="comment">// Inserts objects into the array at a specified position.</span>
<a name="l00894"></a>00894 <span class="comment">// It increases the size of the dynamic array.</span>
<a name="l00895"></a>00895 <span class="comment">// This function leaves with one of the system error codes, if the operation fails.</span>
<a name="l00896"></a>00896
<a name="l00897"></a>00897 <span class="comment">// Insert arrayElements</span>
<a name="l00898"></a>00898 <span class="comment">// ... at the beginning,</span>
<a name="l00899"></a>00899 _LIT(KMsgBEG,<span class="stringliteral">"BEG"</span>);
<a name="l00900"></a>00900 arrayElement.iData = KMsgBEG;
<a name="l00901"></a>00901 aArray.InsertL(arrayElement, 0);
<a name="l00902"></a>00902
<a name="l00903"></a>00903 <span class="comment">// ... near the middle,</span>
<a name="l00904"></a>00904 _LIT(KMsgMID,<span class="stringliteral">"MID"</span>);
<a name="l00905"></a>00905 arrayElement.iData = KMsgMID;
<a name="l00906"></a>00906 aArray.InsertL(arrayElement, 2);
<a name="l00907"></a>00907
<a name="l00908"></a>00908 <span class="comment">// ... at the end.</span>
<a name="l00909"></a>00909 <span class="comment">// This is the same as using the AppendL() function</span>
<a name="l00910"></a>00910 _LIT(KMsgEND,<span class="stringliteral">"END"</span>);
<a name="l00911"></a>00911 arrayElement.iData = KMsgEND;
<a name="l00912"></a>00912 aArray.InsertL(arrayElement,aArray.Count());
<a name="l00913"></a>00913
<a name="l00914"></a>00914 <span class="comment">// Show number of elements</span>
<a name="l00915"></a>00915 _LIT(KCommonFormat5,<span class="stringliteral">"Count()=%d"</span>);
<a name="l00916"></a>00916 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aArray.Count());
<a name="l00917"></a>00917
<a name="l00918"></a>00918 <span class="comment">//</span>
<a name="l00919"></a>00919 <span class="comment">// Access elements * * * * * * * * *</span>
<a name="l00920"></a>00920 <span class="comment">//</span>
<a name="l00921"></a>00921 _LIT(KMsgAccess,<span class="stringliteral">"\n\n--->Access"</span>);
<a name="l00922"></a>00922 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgAccess);
<a name="l00923"></a>00923 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00924"></a>00924 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00925"></a>00925
<a name="l00926"></a>00926 <span class="comment">// Show each element</span>
<a name="l00927"></a>00927 <span class="keywordflow">for</span> (forix = 0; forix < aArray.Count(); forix++)
<a name="l00928"></a>00928 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat4,&(aArray)[forix].iData);
<a name="l00929"></a>00929
<a name="l00930"></a>00930 <span class="comment">//</span>
<a name="l00931"></a>00931 <span class="comment">// Delete * * * * * * * * *</span>
<a name="l00932"></a>00932 <span class="comment">//</span>
<a name="l00933"></a>00933 _LIT(KMsgDelete,<span class="stringliteral">"\n\n--->Delete"</span>);
<a name="l00934"></a>00934 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgDelete);
<a name="l00935"></a>00935 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00936"></a>00936 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00937"></a>00937
<a name="l00938"></a>00938 TInt index2;
<a name="l00939"></a>00939 index2 = aArray.Count();
<a name="l00940"></a>00940
<a name="l00941"></a>00941 <span class="comment">// Removes the objects at a specified position from the array.</span>
<a name="l00942"></a>00942 <span class="comment">// It shrinks the array.</span>
<a name="l00943"></a>00943
<a name="l00944"></a>00944 <span class="comment">// Delete the last element</span>
<a name="l00945"></a>00945 arrayElement = (aArray)[--index2];
<a name="l00946"></a>00946 aArray.Remove(index2);
<a name="l00947"></a>00947
<a name="l00948"></a>00948 <span class="comment">// Show number of elements</span>
<a name="l00949"></a>00949 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aArray.Count());
<a name="l00950"></a>00950
<a name="l00951"></a>00951 <span class="comment">// Show each element</span>
<a name="l00952"></a>00952 <span class="keywordflow">for</span> (forix = 0; forix < aArray.Count(); forix++)
<a name="l00953"></a>00953 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat4,&(aArray)[forix].iData);
<a name="l00954"></a>00954
<a name="l00955"></a>00955 <span class="comment">//</span>
<a name="l00956"></a>00956 <span class="comment">// Find * * * * * * * * *</span>
<a name="l00957"></a>00957 <span class="comment">//</span>
<a name="l00958"></a>00958 _LIT(KMsgFind,<span class="stringliteral">"\n\n--->Find in various ways"</span>);
<a name="l00959"></a>00959 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgFind);
<a name="l00960"></a>00960 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l00961"></a>00961 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l00962"></a>00962
<a name="l00963"></a>00963 TInt pos =0;
<a name="l00964"></a>00964
<a name="l00965"></a>00965 <span class="comment">// Find a particular element in different ways.</span>
<a name="l00966"></a>00966 arrayElement = (aArray)[--index2];
<a name="l00967"></a>00967
<a name="l00968"></a>00968 _LIT(KCommonFormat6,<span class="stringliteral">"\nElement %S is found at position %d"</span>);
<a name="l00969"></a>00969
<a name="l00970"></a>00970 <span class="comment">// Finds the first object in the array which matches the specified object using a sequential search and a matching algorithm.</span>
<a name="l00971"></a>00971 pos=aArray.Find(arrayElement, TIdentityRelation<CArrayElement>());
<a name="l00972"></a>00972 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat6, &(aArray)[pos].iData, pos);
<a name="l00973"></a>00973
<a name="l00974"></a>00974 <span class="comment">// Finds the last object in the array which matches the specified object using a sequential search and a matching algorithm.</span>
<a name="l00975"></a>00975 pos=aArray.FindReverse(arrayElement, TIdentityRelation<CArrayElement>());
<a name="l00976"></a>00976 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat6, &(aArray)[pos].iData, pos);
<a name="l00977"></a>00977
<a name="l00978"></a>00978 <span class="comment">// Finds the object in the array which matches the specified object using a binary search technique.It assumes that objects are in signed key order</span>
<a name="l00979"></a>00979 pos=aArray.FindInSignedKeyOrder(arrayElement);
<a name="l00980"></a>00980 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat6,&(aArray)[pos].iData, pos);
<a name="l00981"></a>00981
<a name="l00982"></a>00982 <span class="comment">// Finds the object in the array which matches the specified object using a binary search technique. It assumes that objects are in unsigned key order.</span>
<a name="l00983"></a>00983 pos=aArray.FindInUnsignedKeyOrder(arrayElement);
<a name="l00984"></a>00984 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat6,&(aArray)[pos].iData, pos);
<a name="l00985"></a>00985
<a name="l00986"></a>00986 <span class="comment">// Finds the object in the array which matches the specified object using a binary search technique.In case of more than one matching element, finds last</span>
<a name="l00987"></a>00987 <span class="comment">// match as specified in the second parameter.It assumes that objects are in signed key order</span>
<a name="l00988"></a>00988 pos=aArray.SpecificFindInSignedKeyOrder(arrayElement, EArrayFindMode_Last);
<a name="l00989"></a>00989 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat6,&(aArray)[pos].iData, pos);
<a name="l00990"></a>00990
<a name="l00991"></a>00991 <span class="comment">// Finds the object in the array which matches the specified object using a binary search technique.In case of more than one matching element, finds last</span>
<a name="l00992"></a>00992 <span class="comment">// match as specified in the second parameter.It assumes that objects are in unsigned key order</span>
<a name="l00993"></a>00993 pos=aArray.SpecificFindInUnsignedKeyOrder(arrayElement, EArrayFindMode_Last);
<a name="l00994"></a>00994 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat6,&(aArray)[pos].iData, pos);
<a name="l00995"></a>00995
<a name="l00996"></a>00996 <span class="comment">// Closes the array and frees all memory allocated to the array</span>
<a name="l00997"></a>00997 aArray.Close();
<a name="l00998"></a>00998 }
<a name="l00999"></a>00999
<a name="l01000"></a>01000 <span class="keywordtype">void</span> DemoRArraySort()
<a name="l01001"></a>01001 {
<a name="l01002"></a>01002 <span class="comment">//</span>
<a name="l01003"></a>01003 <span class="comment">// Sort * * * * * * * * *</span>
<a name="l01004"></a>01004 <span class="comment">//</span>
<a name="l01005"></a>01005 _LIT(KSortFind,<span class="stringliteral">"\n\n--->Sort"</span>);
<a name="l01006"></a>01006 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KSortFind);
<a name="l01007"></a>01007 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01008"></a>01008 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01009"></a>01009
<a name="l01010"></a>01010 TLinearOrder<TInt64> Int64Order(Order64Bit);
<a name="l01011"></a>01011 TInt count=10;
<a name="l01012"></a>01012
<a name="l01013"></a>01013 <span class="comment">// Construct two arrays of 64-bit signed integer type objects.</span>
<a name="l01014"></a>01014 <span class="comment">// Append random objects to first array.</span>
<a name="l01015"></a>01015 <span class="comment">// Sort all objects of first array in the second array</span>
<a name="l01016"></a>01016
<a name="l01017"></a>01017 RArray<TInt64> firstArray(count);
<a name="l01018"></a>01018 RArray<TInt64> secondArray(count);
<a name="l01019"></a>01019
<a name="l01020"></a>01020 <span class="keywordflow">for</span> (TInt j=0; j<count; j++)
<a name="l01021"></a>01021 {
<a name="l01022"></a>01022 TInt64 x=(TInt64)(((TUint)Math::Random() %count));
<a name="l01023"></a>01023
<a name="l01024"></a>01024 firstArray.Append(x);
<a name="l01025"></a>01025 secondArray.InsertInOrderAllowRepeats(x,Int64Order);
<a name="l01026"></a>01026 }
<a name="l01027"></a>01027
<a name="l01028"></a>01028 <span class="comment">// Show the initial array elements of first array.</span>
<a name="l01029"></a>01029 _LIT(KInitialArrayElements,<span class="stringliteral">"\nInitial array elements are:"</span>);
<a name="l01030"></a>01030 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KInitialArrayElements);
<a name="l01031"></a>01031
<a name="l01032"></a>01032 _LIT(KCommonFormat7,<span class="stringliteral">" %d"</span>);
<a name="l01033"></a>01033 TInt forix;
<a name="l01034"></a>01034 <span class="keywordflow">for</span> (forix = 0; forix < count; forix++)
<a name="l01035"></a>01035 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat7,firstArray[forix]);
<a name="l01036"></a>01036
<a name="l01037"></a>01037 <span class="comment">// Sorts the objects within the array using the specified TLinearOrder</span>
<a name="l01038"></a>01038 secondArray.Sort(Int64Order);
<a name="l01039"></a>01039
<a name="l01040"></a>01040 <span class="comment">// Show sorted array elements of second array</span>
<a name="l01041"></a>01041 _LIT(KSortedArrayElements,<span class="stringliteral">"\nSorted array elements are:"</span>);
<a name="l01042"></a>01042 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KSortedArrayElements);
<a name="l01043"></a>01043 <span class="keywordflow">for</span> (forix = 0; forix < count; forix++)
<a name="l01044"></a>01044 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat7,secondArray[forix]);
<a name="l01045"></a>01045
<a name="l01046"></a>01046 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01047"></a>01047 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgNewLine);
<a name="l01048"></a>01048
<a name="l01049"></a>01049 <span class="comment">// Closes both the arrays and frees all the memory allocated to these arrays</span>
<a name="l01050"></a>01050 firstArray.Close();
<a name="l01051"></a>01051 secondArray.Close();
<a name="l01052"></a>01052 }
<a name="l01053"></a>01053
<a name="l01054"></a>01054 <span class="keywordtype">void</span> DemoRPointerArrayL(RPointerArray<CElement>& aPointerArray)
<a name="l01055"></a>01055 {
<a name="l01056"></a>01056 CElement* elementptr;
<a name="l01057"></a>01057
<a name="l01058"></a>01058 <span class="comment">//</span>
<a name="l01059"></a>01059 <span class="comment">// AppendL * * * * * * * * *</span>
<a name="l01060"></a>01060 <span class="comment">//</span>
<a name="l01061"></a>01061 _LIT(KMsgAppend,<span class="stringliteral">"\n\n--->AppendL"</span>);
<a name="l01062"></a>01062 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgAppend);
<a name="l01063"></a>01063 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01064"></a>01064 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01065"></a>01065
<a name="l01066"></a>01066 <span class="comment">// Append the first element.</span>
<a name="l01067"></a>01067 elementptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l01068"></a>01068 _LIT(KMsgFirstElement,<span class="stringliteral">"First Element"</span>);
<a name="l01069"></a>01069 elementptr->SetTextL(KMsgFirstElement);
<a name="l01070"></a>01070 aPointerArray.AppendL(elementptr);
<a name="l01071"></a>01071
<a name="l01072"></a>01072 <span class="comment">// Append the second element.</span>
<a name="l01073"></a>01073 elementptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l01074"></a>01074 _LIT(KMsgSecondElement,<span class="stringliteral">"Second Element"</span>);
<a name="l01075"></a>01075 elementptr->SetTextL(KMsgSecondElement);
<a name="l01076"></a>01076 aPointerArray.AppendL(elementptr);
<a name="l01077"></a>01077
<a name="l01078"></a>01078 <span class="comment">// Append the third element.</span>
<a name="l01079"></a>01079 elementptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l01080"></a>01080 _LIT(KMsgThirdElement,<span class="stringliteral">"Third Element"</span>);
<a name="l01081"></a>01081 elementptr->SetTextL(KMsgThirdElement);
<a name="l01082"></a>01082 aPointerArray.AppendL(elementptr);
<a name="l01083"></a>01083
<a name="l01084"></a>01084 <span class="comment">// Show number of elements</span>
<a name="l01085"></a>01085 _LIT(KCommonFormat3,<span class="stringliteral">"\nCount()=%d"</span>);
<a name="l01086"></a>01086 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat3,aPointerArray.Count());
<a name="l01087"></a>01087
<a name="l01088"></a>01088 <span class="comment">// Show each element</span>
<a name="l01089"></a>01089 _LIT(KCommonFormat4,<span class="stringliteral">"\n%S"</span>);
<a name="l01090"></a>01090 TInt forix;
<a name="l01091"></a>01091 <span class="keywordflow">for</span> (forix = 0; forix < aPointerArray.Count(); forix++)
<a name="l01092"></a>01092 {
<a name="l01093"></a>01093 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat4,aPointerArray[forix]->iBuf);
<a name="l01094"></a>01094 }
<a name="l01095"></a>01095
<a name="l01096"></a>01096 <span class="comment">//</span>
<a name="l01097"></a>01097 <span class="comment">// InsertL * * * * * * * * *</span>
<a name="l01098"></a>01098 <span class="comment">//</span>
<a name="l01099"></a>01099 _LIT(KMsgInsert,<span class="stringliteral">"\n\n--->InsertL"</span>);
<a name="l01100"></a>01100 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgInsert);
<a name="l01101"></a>01101 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01102"></a>01102 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01103"></a>01103
<a name="l01104"></a>01104 <span class="comment">// Inserts objects into the array at a specified position.</span>
<a name="l01105"></a>01105 <span class="comment">// It increases the size of the dynamic array.</span>
<a name="l01106"></a>01106
<a name="l01107"></a>01107 <span class="comment">// Insert an element at the beginning</span>
<a name="l01108"></a>01108 <span class="comment">// of the array</span>
<a name="l01109"></a>01109 elementptr = <span class="keyword">new</span> (ELeave) CElement;
<a name="l01110"></a>01110 _LIT(KMsgInsertedBeg,<span class="stringliteral">"Inserted @ beginning Element"</span>);
<a name="l01111"></a>01111 elementptr->SetTextL(KMsgInsertedBeg);
<a name="l01112"></a>01112 aPointerArray.InsertL(elementptr, 0);
<a name="l01113"></a>01113
<a name="l01114"></a>01114 <span class="comment">// Show number of elements</span>
<a name="l01115"></a>01115 _LIT(KCommonFormat5,<span class="stringliteral">"Count()=%d"</span>);
<a name="l01116"></a>01116 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aPointerArray.Count());
<a name="l01117"></a>01117
<a name="l01118"></a>01118 <span class="comment">//</span>
<a name="l01119"></a>01119 <span class="comment">// Access * * * * * * * * *</span>
<a name="l01120"></a>01120 <span class="comment">//</span>
<a name="l01121"></a>01121 <span class="comment">// Show each element</span>
<a name="l01122"></a>01122 <span class="keywordflow">for</span> (forix = 0; forix < aPointerArray.Count(); forix++)
<a name="l01123"></a>01123 {
<a name="l01124"></a>01124 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat4,aPointerArray[forix]->iBuf);
<a name="l01125"></a>01125 }
<a name="l01126"></a>01126
<a name="l01127"></a>01127 <span class="comment">//</span>
<a name="l01128"></a>01128 <span class="comment">// Delete * * * * * * * * *</span>
<a name="l01129"></a>01129 <span class="comment">//</span>
<a name="l01130"></a>01130 _LIT(KMsgDelete,<span class="stringliteral">"\n\n--->Delete"</span>);
<a name="l01131"></a>01131 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgDelete);
<a name="l01132"></a>01132 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01133"></a>01133 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01134"></a>01134
<a name="l01135"></a>01135 <span class="comment">// Delete the last elements from the array BUT</span>
<a name="l01136"></a>01136 <span class="comment">// first we must get a reference to the element</span>
<a name="l01137"></a>01137 <span class="comment">// (pointers to CElement objects) otherwise</span>
<a name="l01138"></a>01138 <span class="comment">// the CElement objects are orphaned.</span>
<a name="l01139"></a>01139 <span class="comment">//</span>
<a name="l01140"></a>01140 <span class="comment">// Here, we destroy the CElement object. It shrinks the array.</span>
<a name="l01141"></a>01141 <span class="comment">//</span>
<a name="l01142"></a>01142 <span class="comment">// Use [] operator for indexing in to the array.</span>
<a name="l01143"></a>01143 TInt index1;
<a name="l01144"></a>01144 index1 = aPointerArray.Count();
<a name="l01145"></a>01145
<a name="l01146"></a>01146 elementptr = aPointerArray[--index1];
<a name="l01147"></a>01147 aPointerArray.Remove(index1);
<a name="l01148"></a>01148 <span class="keyword">delete</span> elementptr;
<a name="l01149"></a>01149
<a name="l01150"></a>01150 <span class="comment">// Show number of elements</span>
<a name="l01151"></a>01151 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat5,aPointerArray.Count());
<a name="l01152"></a>01152
<a name="l01153"></a>01153 <span class="comment">// Show each element</span>
<a name="l01154"></a>01154 <span class="keywordflow">for</span> (forix = 0; forix < aPointerArray.Count(); forix++)
<a name="l01155"></a>01155 {
<a name="l01156"></a>01156 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat4,aPointerArray[forix]->iBuf);
<a name="l01157"></a>01157 }
<a name="l01158"></a>01158
<a name="l01159"></a>01159 <span class="comment">//</span>
<a name="l01160"></a>01160 <span class="comment">// Find * * * * * * * * *</span>
<a name="l01161"></a>01161 <span class="comment">//</span>
<a name="l01162"></a>01162 _LIT(KMsgFind,<span class="stringliteral">"\n--->Find"</span>);
<a name="l01163"></a>01163 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgFind);
<a name="l01164"></a>01164 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01165"></a>01165 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01166"></a>01166
<a name="l01167"></a>01167 elementptr = aPointerArray[index1-2];
<a name="l01168"></a>01168
<a name="l01169"></a>01169 _LIT(KCommonFormat8,<span class="stringliteral">"\nElement found at position %d"</span>);
<a name="l01170"></a>01170
<a name="l01171"></a>01171 <span class="comment">// Finds the first object pointer in the array which matches the specified object pointer, using a sequential search.</span>
<a name="l01172"></a>01172 TInt result=aPointerArray.Find(elementptr);
<a name="l01173"></a>01173 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat8, result);
<a name="l01174"></a>01174
<a name="l01175"></a>01175 <span class="comment">// Finds the last object pointer in the array which matches the specified object pointer, using a sequential search.</span>
<a name="l01176"></a>01176 result=aPointerArray.FindReverse(elementptr);
<a name="l01177"></a>01177 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat8, result);
<a name="l01178"></a>01178
<a name="l01179"></a>01179 <span class="comment">// Finds the object pointer in the array that matches the specified object pointer, using a binary search technique.</span>
<a name="l01180"></a>01180 <span class="comment">// It assumes that object pointers in the array are in address order.</span>
<a name="l01181"></a>01181 result=aPointerArray.FindInAddressOrder(elementptr);
<a name="l01182"></a>01182 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat8, result);
<a name="l01183"></a>01183
<a name="l01184"></a>01184 <span class="comment">//</span>
<a name="l01185"></a>01185 <span class="comment">// Sort * * * * * * * * *</span>
<a name="l01186"></a>01186 <span class="comment">//</span>
<a name="l01187"></a>01187 _LIT(KSortFind,<span class="stringliteral">"\n\n--->Sort"</span>);
<a name="l01188"></a>01188 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KSortFind);
<a name="l01189"></a>01189 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01190"></a>01190 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01191"></a>01191
<a name="l01192"></a>01192 <span class="comment">// ResetAndDestroy * * * * * * * * *</span>
<a name="l01193"></a>01193 <span class="comment">//</span>
<a name="l01194"></a>01194 _LIT(KMsgResetDestroy,<span class="stringliteral">"\n\n--->ResetAndDestroy"</span>);
<a name="l01195"></a>01195 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgResetDestroy);
<a name="l01196"></a>01196 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01197"></a>01197 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01198"></a>01198
<a name="l01199"></a>01199 <span class="comment">// Empties the array and deletes the referenced objects.</span>
<a name="l01200"></a>01200 <span class="comment">// It frees all memory allocated to the array and resets the internal state so that it is ready to be reused.</span>
<a name="l01201"></a>01201 aPointerArray.ResetAndDestroy();
<a name="l01202"></a>01202 }
<a name="l01203"></a>01203
<a name="l01204"></a>01204 <span class="keywordtype">void</span> DemoSortRPointerArray()
<a name="l01205"></a>01205 {
<a name="l01206"></a>01206 <span class="comment">// Construct two arrays of TAny pointer objects.</span>
<a name="l01207"></a>01207 <span class="comment">// Append random objects to first pointer array.</span>
<a name="l01208"></a>01208 <span class="comment">// Sort all objects of first array in the second pointer array.</span>
<a name="l01209"></a>01209 RPointerArray<TAny> firstpointerarray;
<a name="l01210"></a>01210 RPointerArray<TAny> secondpointerarray;
<a name="l01211"></a>01211
<a name="l01212"></a>01212 TInt count = 10;
<a name="l01213"></a>01213 <span class="keywordflow">for</span> (TInt i=0; i<count; i++)
<a name="l01214"></a>01214 {
<a name="l01215"></a>01215 TAny* x=(TAny*)(((TUint)Math::Random() %count));
<a name="l01216"></a>01216 firstpointerarray.Append(x);
<a name="l01217"></a>01217 secondpointerarray.InsertInAddressOrderAllowRepeats(x);
<a name="l01218"></a>01218 }
<a name="l01219"></a>01219
<a name="l01220"></a>01220 <span class="comment">// Show initial array elements of first array</span>
<a name="l01221"></a>01221 _LIT(KInitialArrayElements,<span class="stringliteral">"\nInitial array elements are:"</span>);
<a name="l01222"></a>01222 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KInitialArrayElements);
<a name="l01223"></a>01223
<a name="l01224"></a>01224 _LIT(KCommonFormat7,<span class="stringliteral">"Array Contents %d \n"</span>);
<a name="l01225"></a>01225 TInt forix;
<a name="l01226"></a>01226 <span class="keywordflow">for</span> (forix = 0; forix < count; forix++)
<a name="l01227"></a>01227 {
<a name="l01228"></a>01228 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat7,firstpointerarray[forix]);
<a name="l01229"></a>01229 }
<a name="l01230"></a>01230
<a name="l01231"></a>01231 <span class="comment">// Sorts the object pointers within the array into address order</span>
<a name="l01232"></a>01232 secondpointerarray.SortIntoAddressOrder();
<a name="l01233"></a>01233
<a name="l01234"></a>01234 <span class="comment">// Show sorted array elements of second array</span>
<a name="l01235"></a>01235 _LIT(KSortedArrayElements,<span class="stringliteral">"\nSorted array elements are:"</span>);
<a name="l01236"></a>01236 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KSortedArrayElements);
<a name="l01237"></a>01237 <span class="keywordflow">for</span> (forix = 0; forix < count; forix++)
<a name="l01238"></a>01238 {
<a name="l01239"></a>01239 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KCommonFormat7,secondpointerarray[forix]);
<a name="l01240"></a>01240 }
<a name="l01241"></a>01241
<a name="l01242"></a>01242 <span class="comment">// Closes the arrays and frees all memory allocated to it</span>
<a name="l01243"></a>01243 firstpointerarray.Close();
<a name="l01244"></a>01244 secondpointerarray.Close();
<a name="l01245"></a>01245 }
<a name="l01246"></a>01246 <span class="comment">// Do the example</span>
<a name="l01247"></a>01247 LOCAL_C <span class="keywordtype">void</span> doExampleL()
<a name="l01248"></a>01248 {
<a name="l01249"></a>01249 <span class="comment">//************************************************************</span>
<a name="l01250"></a>01250 <span class="comment">// Demonstrate a general fixed length array using</span>
<a name="l01251"></a>01251 <span class="comment">// a flat buffer</span>
<a name="l01252"></a>01252 <span class="comment">//************************************************************</span>
<a name="l01253"></a>01253
<a name="l01254"></a>01254 CArrayFixFlat<TElement>* fixflat;
<a name="l01255"></a>01255 <span class="comment">// Construct array of TElement objects where the iData</span>
<a name="l01256"></a>01256 <span class="comment">// data member of each element contains "X0", "X1", etc</span>
<a name="l01257"></a>01257 <span class="comment">// Uses the AppendL() function to add the members</span>
<a name="l01258"></a>01258 <span class="comment">// and the [] operator to access elements.</span>
<a name="l01259"></a>01259 fixflat = <span class="keyword">new</span> (ELeave) CArrayFixFlat<TElement>(3);
<a name="l01260"></a>01260 CleanupStack::PushL(fixflat);
<a name="l01261"></a>01261
<a name="l01262"></a>01262 <span class="comment">// Demonstrate the CArrayFixFlat array.</span>
<a name="l01263"></a>01263 DemoFlatArrayL(*fixflat);
<a name="l01264"></a>01264
<a name="l01265"></a>01265 <span class="comment">// Delete the fixflat array.</span>
<a name="l01266"></a>01266 CleanupStack::PopAndDestroy(fixflat); <span class="comment">// fixflat</span>
<a name="l01267"></a>01267 <span class="comment">//************************************************************</span>
<a name="l01268"></a>01268 <span class="comment">// Demonstrate an array of pointers to CBase</span>
<a name="l01269"></a>01269 <span class="comment">// derived objects. Uses the specialised array CArrayPtrFlat</span>
<a name="l01270"></a>01270 <span class="comment">//************************************************************</span>
<a name="l01271"></a>01271 _LIT(KMsgArrayOfPointers,<span class="stringliteral">"\nARRAYS OF POINTERS (to CBase derived objects)\n"</span>);
<a name="l01272"></a>01272 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgArrayOfPointers);
<a name="l01273"></a>01273
<a name="l01274"></a>01274 CArrayPtrFlat<CElement>* ptrflat;
<a name="l01275"></a>01275
<a name="l01276"></a>01276 <span class="comment">// Construct an array of four CElement objects each</span>
<a name="l01277"></a>01277 <span class="comment">// containing the text "First" "second" etc</span>
<a name="l01278"></a>01278 <span class="comment">// Uses the AppendL() function to add the members</span>
<a name="l01279"></a>01279 <span class="comment">// and the [] operator to access elements.</span>
<a name="l01280"></a>01280 ptrflat = <span class="keyword">new</span> (ELeave) CArrayPtrFlat<CElement>(16);
<a name="l01281"></a>01281 CleanupStack::PushL(ptrflat);
<a name="l01282"></a>01282
<a name="l01283"></a>01283 <span class="comment">// Demonstrate the CArrayPtrFlat array.</span>
<a name="l01284"></a>01284 DemoPtrArrayL(*ptrflat);
<a name="l01285"></a>01285
<a name="l01286"></a>01286 <span class="comment">// Delete the array.</span>
<a name="l01287"></a>01287 CleanupStack::PopAndDestroy(ptrflat); <span class="comment">// ptrflat</span>
<a name="l01288"></a>01288
<a name="l01289"></a>01289 <span class="comment">//************************************************************</span>
<a name="l01290"></a>01290 <span class="comment">// Demonstrate Variable and Packed arrays</span>
<a name="l01291"></a>01291 <span class="comment">// Use TKey to sort these arrays</span>
<a name="l01292"></a>01292 <span class="comment">//************************************************************</span>
<a name="l01293"></a>01293 _LIT(KMsgVarArray,<span class="stringliteral">"\n\nVAR ARRAY\n\n"</span>);
<a name="l01294"></a>01294 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgVarArray);
<a name="l01295"></a>01295
<a name="l01296"></a>01296 <span class="comment">// Create a Var array.</span>
<a name="l01297"></a>01297 CArrayVarFlat<TText>* varflat = <span class="keyword">new</span> (ELeave) CArrayVarFlat<TText>(3);
<a name="l01298"></a>01298 CleanupStack::PushL(varflat);
<a name="l01299"></a>01299
<a name="l01300"></a>01300 <span class="comment">// Demonstrate the CArrayVarFlat array.</span>
<a name="l01301"></a>01301 DemoVarArraySortL(*varflat);
<a name="l01302"></a>01302
<a name="l01303"></a>01303 <span class="comment">// Delete the array.</span>
<a name="l01304"></a>01304 CleanupStack::PopAndDestroy(varflat); <span class="comment">// varflat</span>
<a name="l01305"></a>01305
<a name="l01306"></a>01306 _LIT(KMsgPakArray,<span class="stringliteral">"\n\nPAK ARRAY\n\n"</span>);
<a name="l01307"></a>01307 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPakArray);
<a name="l01308"></a>01308
<a name="l01309"></a>01309 <span class="comment">// Create a TKeyArrayPak array.</span>
<a name="l01310"></a>01310 CArrayPakFlat<TText>* pakflat = <span class="keyword">new</span> (ELeave) CArrayPakFlat<TText>(3);
<a name="l01311"></a>01311 CleanupStack::PushL(pakflat);
<a name="l01312"></a>01312
<a name="l01313"></a>01313 <span class="comment">// Demonstrate the CArrayPakFlat array.</span>
<a name="l01314"></a>01314 DemoPakArrayFindL(*pakflat);
<a name="l01315"></a>01315
<a name="l01316"></a>01316 <span class="comment">// Delete the array.</span>
<a name="l01317"></a>01317 CleanupStack::PopAndDestroy(pakflat); <span class="comment">// pakflat,</span>
<a name="l01318"></a>01318
<a name="l01319"></a>01319 <span class="comment">//************************************************************</span>
<a name="l01320"></a>01320 <span class="comment">// Demonstrate the CArrayFix::Find() function using the</span>
<a name="l01321"></a>01321 <span class="comment">// TKey derived class TKeyTIntPtr.</span>
<a name="l01322"></a>01322 <span class="comment">//************************************************************</span>
<a name="l01323"></a>01323 _LIT(KMsgTKeyDerived,<span class="stringliteral">"\nTKEY DERIVED CLASS\n"</span>);
<a name="l01324"></a>01324 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgPressAnyKey);
<a name="l01325"></a>01325 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Getch();
<a name="l01326"></a>01326
<a name="l01327"></a>01327 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgTKeyDerived);
<a name="l01328"></a>01328 CArrayFixFlat<TIntPtrElement>* ptrElementArray;
<a name="l01329"></a>01329 <span class="comment">// Construct array of TIntPtrElement objects where the iData</span>
<a name="l01330"></a>01330 <span class="comment">// data member of each element contains "X0", "X1", etc</span>
<a name="l01331"></a>01331 <span class="comment">// Uses the AppendL() function to add the members</span>
<a name="l01332"></a>01332 <span class="comment">// and the [] operator to access elements.</span>
<a name="l01333"></a>01333 ptrElementArray = <span class="keyword">new</span> (ELeave) CArrayFixFlat<TIntPtrElement>(3);
<a name="l01334"></a>01334 CleanupStack::PushL(ptrElementArray);
<a name="l01335"></a>01335
<a name="l01336"></a>01336 <span class="comment">// Demonstrate the use of TKey derived class.</span>
<a name="l01337"></a>01337 DemoTKeyDerivedL(*ptrElementArray);
<a name="l01338"></a>01338
<a name="l01339"></a>01339 CleanupStack::PopAndDestroy(ptrElementArray); <span class="comment">// ptrElementArray,</span>
<a name="l01340"></a>01340
<a name="l01341"></a>01341 <span class="comment">//*****************************************************************</span>
<a name="l01342"></a>01342 <span class="comment">// Demonstrate an array of type RArray for elements of the same size</span>
<a name="l01343"></a>01343 <span class="comment">//*****************************************************************</span>
<a name="l01344"></a>01344
<a name="l01345"></a>01345 _LIT(KMsgForRArray,<span class="stringliteral">"\n*******Arrays of fixed length objects******"</span>);
<a name="l01346"></a>01346 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgForRArray);
<a name="l01347"></a>01347
<a name="l01348"></a>01348 RArray<CArrayElement>* array;
<a name="l01349"></a>01349
<a name="l01350"></a>01350 <span class="comment">// Construct array of CArrayElement objects where the iData</span>
<a name="l01351"></a>01351 <span class="comment">// data member of each element contains "X0", "X1", etc.</span>
<a name="l01352"></a>01352 <span class="comment">// The elements of the array are instances of a class,</span>
<a name="l01353"></a>01353 <span class="comment">// so this is a template class. Refer to the definition of</span>
<a name="l01354"></a>01354 <span class="comment">// element CArrayElement above.</span>
<a name="l01355"></a>01355 <span class="comment">// Uses the AppendL() function to add the members</span>
<a name="l01356"></a>01356 <span class="comment">// and the [] operator to access elements.</span>
<a name="l01357"></a>01357 array = <span class="keyword">new</span> (ELeave) RArray<CArrayElement>(16); <span class="comment">// Initialise the array granularity to 16</span>
<a name="l01358"></a>01358 CleanupStack::PushL(array);
<a name="l01359"></a>01359 <span class="comment">// Demonstrate the use of RArray.</span>
<a name="l01360"></a>01360 DemoRArrayL(*array);
<a name="l01361"></a>01361
<a name="l01362"></a>01362 CleanupStack::PopAndDestroy(array);
<a name="l01363"></a>01363 <span class="comment">// Demonstrates sorting of the RArray.</span>
<a name="l01364"></a>01364 DemoRArraySort();
<a name="l01365"></a>01365
<a name="l01366"></a>01366
<a name="l01367"></a>01367 <span class="comment">//******************************************************************************</span>
<a name="l01368"></a>01368 <span class="comment">// Demonstrate a simple and efficient array of pointers to objects RPointerArray</span>
<a name="l01369"></a>01369 <span class="comment">//******************************************************************************</span>
<a name="l01370"></a>01370
<a name="l01371"></a>01371 _LIT(KMsgForRPointerArray,<span class="stringliteral">"\n*******Array of pointers to objects******"</span>);
<a name="l01372"></a>01372 <a class="code" href="dbllist_8cpp.html#d789d40251baeb2f60e118de4856583d">console</a>->Printf(KMsgForRPointerArray);
<a name="l01373"></a>01373
<a name="l01374"></a>01374 RPointerArray<CElement>* ptrarray;
<a name="l01375"></a>01375
<a name="l01376"></a>01376 <span class="comment">// Construct an array of four CElement objects each</span>
<a name="l01377"></a>01377 <span class="comment">// containing the text "First", "Second" etc</span>
<a name="l01378"></a>01378 <span class="comment">// Uses the AppendL() function to add the members</span>
<a name="l01379"></a>01379 <span class="comment">// and the [] operator to access elements.</span>
<a name="l01380"></a>01380 <span class="comment">// It leaves with one of the system wide error codes, if the operation fails.</span>
<a name="l01381"></a>01381 ptrarray = <span class="keyword">new</span> (ELeave) RPointerArray<CElement>(16); <span class="comment">// Initialise the array granularity to 16</span>
<a name="l01382"></a>01382 CleanupStack::PushL(array);
<a name="l01383"></a>01383 <span class="comment">// Demonstrate the use of RPointerArray.</span>
<a name="l01384"></a>01384 DemoRPointerArrayL(*ptrarray);
<a name="l01385"></a>01385 CleanupStack::PopAndDestroy(ptrarray);
<a name="l01386"></a>01386 <span class="comment">// Demonstrates sorting of the RPointerArray.</span>
<a name="l01387"></a>01387 DemoSortRPointerArray();
<a name="l01388"></a>01388 }
<a name="l01389"></a>01389
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