| Geant4 Cross Reference |
>> 1 // $Id:$
1 // -*- C++ -*- 2 // -*- C++ -*-
2 // 3 //
3 // ------------------------------------------- 4 // -----------------------------------------------------------------------
4 // HEP Random 5 // HEP Random
5 // --- RandExponential - 6 // --- RandExponential ---
6 // inlined functions implement 7 // inlined functions implementation file
7 // ------------------------------------------- 8 // -----------------------------------------------------------------------
8 // This file is part of Geant4 (simulation too 9 // This file is part of Geant4 (simulation toolkit for HEP).
9 10
10 // =========================================== 11 // =======================================================================
11 // Gabriele Cosmo - Created: 19th August 1998 12 // Gabriele Cosmo - Created: 19th August 1998
12 // =========================================== 13 // =======================================================================
13 14
14 #include <cmath> // for log() 15 #include <cmath> // for log()
15 16
16 namespace CLHEP { 17 namespace CLHEP {
17 18
18 inline RandExponential::RandExponential(HepRan 19 inline RandExponential::RandExponential(HepRandomEngine & anEngine,
19 double 20 double mean )
20 : HepRandom(), localEngine(&anEngine, do_nothi 21 : HepRandom(), localEngine(&anEngine, do_nothing_deleter()), defaultMean(mean) {}
21 22
22 inline RandExponential::RandExponential(HepRan 23 inline RandExponential::RandExponential(HepRandomEngine * anEngine,
23 double 24 double mean )
24 : HepRandom(), localEngine(anEngine), defaultM 25 : HepRandom(), localEngine(anEngine), defaultMean(mean) {}
25 26
26 //------------- 27 //-------------
27 28
28 inline double RandExponential::shoot(HepRandom 29 inline double RandExponential::shoot(HepRandomEngine* anEngine) {
29 return -std::log(anEngine->flat()); 30 return -std::log(anEngine->flat());
30 } 31 }
31 32
32 inline double RandExponential::shoot(HepRandom 33 inline double RandExponential::shoot(HepRandomEngine* anEngine,
33 double 34 double mean) {
34 return -std::log(anEngine->flat())*mean; 35 return -std::log(anEngine->flat())*mean;
35 } 36 }
36 37
37 //------------- 38 //-------------
38 39
39 inline double RandExponential::fire() { 40 inline double RandExponential::fire() {
40 return -std::log(localEngine->flat())*defaul 41 return -std::log(localEngine->flat())*defaultMean;
41 } 42 }
42 43
43 inline double RandExponential::fire(double mea 44 inline double RandExponential::fire(double mean) {
44 return -std::log(localEngine->flat())*mean; 45 return -std::log(localEngine->flat())*mean;
45 } 46 }
46 47
47 } // namespace CLHEP 48 } // namespace CLHEP
48 49