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65fb704d | 1 | #ifndef ALIRNDM_H |
2 | #define ALIRNDM_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | /////////////////////////////////////////////////////////////////////////////// | |
9 | // // | |
10 | // Random Number Interface // | |
11 | // // | |
12 | /////////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | #include <TRandom.h> | |
15 | ||
65fb704d | 16 | class AliRndm |
17 | { | |
18 | public: | |
e2afb3b6 | 19 | AliRndm(); |
af7ba10c | 20 | AliRndm(const AliRndm &rn); |
7cdba479 | 21 | virtual ~AliRndm() {fRandom=0;} |
e2afb3b6 | 22 | AliRndm & operator=(const AliRndm& rn) |
23 | {rn.Copy(*this); return (*this);} | |
65fb704d | 24 | |
25 | // Random number generator bit | |
3e54283a | 26 | virtual void SetRandom(TRandom *ran=0) |
7cdba479 | 27 | {if(ran) fRandom=ran; |
28 | else fRandom=gRandom;} | |
3e54283a | 29 | |
65fb704d | 30 | virtual TRandom* GetRandom() const {return fRandom;} |
d0f1ee3b | 31 | virtual void Rndm(Float_t* array, Int_t size) const; |
65fb704d | 32 | #ifdef CKNONE |
33 | virtual Float_t Rndm() const {return fRandom->Rndm();} | |
34 | #else | |
35 | virtual Float_t Rndm() const { | |
36 | Float_t r; | |
37 | do r=fRandom->Rndm(); while(0>=r || r>=1); return r;} | |
38 | #endif | |
39 | virtual void WriteRandom(const char *filename) const; | |
40 | virtual void ReadRandom(const char *filename); | |
41 | ||
e2afb3b6 | 42 | protected: |
65fb704d | 43 | TRandom *fRandom; // Pointer to the random number generator |
44 | ||
e2afb3b6 | 45 | private: |
46 | void Copy(AliRndm &rn) const; | |
65fb704d | 47 | |
48 | ClassDef(AliRndm,1) //Random Number generator wrapper | |
49 | }; | |
50 | ||
51 | #endif | |
52 |