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# crng.h

    00001 //==========================================================================
    00002 //   CRNG.H  - part of
    00003 //                     OMNeT++/OMNEST
    00004 //            Discrete System Simulation in C++
    00005 //
    00006 //
    00007 //  cRNG: interface for random number generator classes
    00008 //
    00009 //==========================================================================
    00010
    00011 /*--------------------------------------------------------------*
    00012   Copyright (C) 1992-2005 Andras Varga
    00013
    00014   This file is distributed WITHOUT ANY WARRANTY. See the file
    00015   `license' for details on this and other legal matters.
    00016 *--------------------------------------------------------------*/
    00017
    00018 #ifndef __CRNG_H
    00019 #define __CRNG_H
    00020
    00021 #include "defs.h"
    00022 #include "cpolymorphic.h"
    00023
    00024 class cConfiguration;
    00025
    00026
    00048 class SIM_API cRNG : public cPolymorphic
    00049 {
    00050   protected:
    00051     unsigned long numDrawn;
    00052
    00053   public:
    00054     cRNG() {numDrawn=0;}
    00055     virtual ~cRNG() {}
    00056
    00061     virtual void initialize(int runNumber, int rngId, int numRngs,
    00062                             int parsimProcId, int parsimNumPartitions,
    00063                             cConfiguration *cfg) = 0;
    00064
    00071     virtual void selfTest() = 0;
    00072
    00077     virtual unsigned long numbersDrawn() {return numDrawn;}
    00078
    00082     virtual unsigned long intRand() = 0;
    00083
    00087     virtual unsigned long intRandMax() = 0;
    00088
    00092     virtual unsigned long intRand(unsigned long n) = 0;
    00093
    00097     virtual double doubleRand() = 0;
    00098
    00102     virtual double doubleRandNonz() = 0;
    00103
    00107     virtual double doubleRandIncl1() = 0;
    00108
    00112     double doubleRandNonzIncl1() {return 1-doubleRand();}
    00113 };
    00114
    00115 #endif
    00116