/*
* Copyright (c) 2002-2006 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of the License "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: Declaration of the WlanPRNGenerator class.
*
*/
/*
* %version: 6 %
*/
#ifndef WLANPNRGENERATOR_H
#define WLANPNRGENERATOR_H
/**
* Class implements a pseudorandom number generator of 32 bit unsigned integers
*
* Full periodic PRN generator.
* All the numbers between 0 and 2pow31 - 1 are generated before repeating.
* Executes efficiently with 32-bit arithmetic
*
* @lib wlanumac.lib
* @since S60 v3.1
*/
class WlanPRNGenerator
{
enum { EMultiplier = 16807 /* 7pow5 */};
enum { EModulus = 2147483647 /* 2pow31 - 1 */};
public:
/**
* C++ default constructor.
*/
inline WlanPRNGenerator();
/**
* PRN generation function.
* @since S60 3.1
* @return generated PRN
*/
inline TUint32 Generate();
private:
// Prohibit copy constructor
WlanPRNGenerator( const WlanPRNGenerator& );
// Prohibit assigment operator
WlanPRNGenerator& operator= ( const WlanPRNGenerator& );
private: // Data
/** PRN value */
TUint32 iValue;
};
#include "UmacPRNGenerator.inl"
#endif // WLANPNRGENERATOR_H