C++/Qt/QMutableIterators

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QMutableIterators to QList

<source lang="cpp"> /*

* Copyright (c) 2006-2007, Johan Thelin
* 
* All rights reserved.
* 
* Redistribution and use in source and binary forms, with or without modification, 
* are permitted provided that the following conditions are met:
* 
*     * Redistributions of source code must retain the above copyright notice, 
*       this list of conditions and the following disclaimer.
*     * Redistributions in binary form must reproduce the above copyright notice,  
*       this list of conditions and the following disclaimer in the documentation 
*       and/or other materials provided with the distribution.
*     * Neither the name of APress nor the names of its contributors 
*       may be used to endorse or promote products derived from this software 
*       without specific prior written permission.
* 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/

  1. include <QList>
  2. include <QString>
  3. include <QtDebug>

void fillAndPrint() {

 QList<QString> list;
 list << "foo" << "bar" << "baz";
 QString s;
 foreach( s, list )
   qDebug() << s;

} void constIterators() {

 QList<int> list;
 list << 23 << 27 << 52 << 52;
 
 QListIterator<int> javaIter( list );
 while( javaIter.hasNext() )
   qDebug() << javaIter.next();
   
 QList<int>::const_iterator stlIter;
 for( stlIter = list.begin(); stlIter != list.end(); ++stlIter )
   qDebug() << (*stlIter);

} void mutableIterators() {

 QList<int> list;
 list << 27 << 33 << 61 << 62;
 
 QMutableListIterator<int> javaIter( list );
 while( javaIter.hasNext() )
 {
   int value = javaIter.next() + 1;
   javaIter.setValue( value );
   qDebug() << value;
 }
 
 QList<int>::Iterator stlIter;
 for( stlIter = list.begin(); stlIter != list.end(); ++stlIter )
 {
   (*stlIter) = (*stlIter)*2;
   qDebug() << (*stlIter);
 }

} void insertAndPrint() {

 QList<QString> list;
 list << "first";
 list.append( "second" );
 list.prepend( "third" );
 list.insert( 1, "fourth" );
 list.insert( 4, "fifth" );
 
 QString s;
 foreach( s, list )
   qDebug() << s;

} void miscExamples() {

 QList<int> list;
 for( int i=0; i<10; i++ )
   list << i;
   
 int sum = list[5] + list.at(7);

} int main( void ) {

 qDebug() << "Fill and print";
 fillAndPrint();
 
 qDebug() << "Const iterators";  
 constIterators();
 
 qDebug() << "Mutable iterators";
 mutableIterators();
 qDebug() << "Insert and print";
 insertAndPrint();  
 return 0;

}


 </source>