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AudioUnitGeneratorExample/Utility/TRandom.h

/*

     File: TRandom.h

 Abstract: TRandom.h

  Version: 1.0.1

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*/

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

//  TRandom.h

//

//      a random number generator

//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

#include <CoreFoundation/CoreFoundation.h>

#ifndef __TRandom

#define __TRandom

#define kRandomSeed 161803398

UInt32  GetRandomLong(UInt32 inRange);

UInt32  GetRandomLong(UInt32 inLowerLimit, UInt32 inUpperLimit);

class TRandom

public:

    TRandom();

    TRandom(UInt32 n) {Seed(n);};

    void Seed(UInt32 n);

    UInt32 operator()(UInt32 inLimit)

        mIndex1 = (mIndex1 + 1) % 55;

        mIndex2 = (mIndex2 + 1) % 55;

        mTable[mIndex1] = mTable[mIndex1] - mTable[mIndex2];

        return mTable[mIndex1] % inLimit;

};

protected:

    UInt32 mTable[55];

    long mIndex1;

    long mIndex2;

};

#endif      // __TRandom

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