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