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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the documentation of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** No Commercial Usage
** This file contains pre-release code and may not be distributed.
** You may use this file in accordance with the terms and conditions
** contained in the Technology Preview License Agreement accompanying
** this package.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
**
**
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
//! [0]
#include <qvaluevector.h>
#include <qstring.h>
#include <stdio.h>
class Employee
{
public:
Employee(): s(0) {}
Employee( const QString& name, int salary )
: n( name ), s( salary )
{ }
QString name() const { return n; }
int salary() const { return s; }
void setSalary( int salary ) { s = salary; }
private:
QString n;
int s;
};
int main()
{
typedef Q3ValueVector<Employee> EmployeeVector;
EmployeeVector vec( 3 ); // vector of 3 Employees
vec[0] = Employee( "Bill", 50000 );
vec[1] = Employee( "Steve", 80000 );
vec[2] = Employee( "Ron", 60000 );
Employee joe( "Joe", 50000 );
vec.push_back( joe ); // vector expands to accommodate 4 Employees
joe.setSalary( 70000 );
EmployeeVector::iterator it;
for( it = vec.begin(); it != vec.end(); ++it )
printf( "%s earns %d\n", (*it).name().latin1(), (*it).salary() );
return 0;
}
//! [0]
//! [1]
Bill earns 50000
Steve earns 80000
Ron earns 60000
Joe earns 50000
//! [1]
//! [2]
Q3ValueVector<int> vec1; // an empty vector
vec1[10] = 4; // WARNING: undefined, probably a crash
Q3ValueVector<QString> vec2(25); // initialize with 25 elements
vec2[10] = "Dave"; // OK
//! [2]
//! [3]
void func( Q3ValueVector<int>& vec )
{
if ( vec.size() > 10 ) {
vec[9] = 99; // OK
}
};
//! [3]
//! [4]
Q3ValueVector<int> vec( 3 );
vec.push_back( 1 );
vec.push_back( 2 );
vec.push_back( 3 );
...
if ( !vec.empty() ) {
// OK: modify the first element
int& i = vec.front();
i = 18;
}
...
Q3ValueVector<double> dvec;
double d = dvec.back(); // undefined behavior
//! [4]
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