/****************************************************************************
**
** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
** 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 either Technology Preview License Agreement or the
** Beta Release License Agreement.
**
** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
** package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU General Public License version 3.0 requirements will be
** met: http://www.gnu.org/copyleft/gpl.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at http://qt.nokia.com/contact.
** $QT_END_LICENSE$
**
****************************************************************************/

//! [0]
#include <q3memarray.h>
#include <stdio.h>

Q3MemArray<int> fib( int num ) // returns fibonacci array
{
    Q_ASSERT( num > 2 );
    Q3MemArray<int> f( num ); // array of ints

    f[0] = f[1] = 1;
    for ( int i = 2; i < num; i++ )
	f[i] = f[i-1] + f[i-2];

    return f;
}

int main()
{
    Q3MemArray<int> a = fib( 6 ); // get first 6 fibonaccis
    for ( int i = 0; i < a.size(); i++ )
	qDebug( "%d: %d", i, a[i] );

    qDebug( "1 is found %d times", a.contains(1) );
    qDebug( "5 is found at index %d", a.find(5) );

    return 0;
}
//! [0]


//! [1]
0: 1
1: 1
2: 2
3: 3
4: 5
5: 8
1 is found 2 times
5 is found at index 4
//! [1]


//! [2]
// MyStruct may be padded to 4 or 8 bytes
struct MyStruct
{
    short i; // 2 bytes
    char c;  // 1 byte
};

Q3MemArray<MyStruct> a(1);
a[0].i = 5;
a[0].c = 't';

MyStruct x;
x.i = '5';
x.c = 't';
int i = a.find( x ); // may return -1 if the pad bytes differ
//! [2]


//! [3]
static char bindata[] = { 231, 1, 44, ... };
QByteArray	a;
a.setRawData( bindata, sizeof(bindata) );	// a points to bindata
QDataStream s( a, IO_ReadOnly );		// open on a's data
s >> <something>;				// read raw bindata
a.resetRawData( bindata, sizeof(bindata) ); // finished
//! [3]


//! [4]
static char bindata[] = { 231, 1, 44, ... };
QByteArray	a, b;
a.setRawData( bindata, sizeof(bindata) );	// a points to bindata
a.resize( 8 );				// will crash
b = a;					// will crash
a[2] = 123;					// might crash
// forget to resetRawData: will crash
//! [4]