#include </builds/gaudi/Gaudi/GaudiSvc/src/RndmGenSvc/HepRndmGenerator.h>

Inheritance diagram for HepRndm::Generator< TYPE >:

[legend]

Collaboration diagram for HepRndm::Generator< TYPE >:

[legend]

Public Types
typedef TYPE	Parameters

Public Types inherited from implements< IRndmGen >
using	base_class = implements< Interfaces... >
	Typedef to this class. More...

using	extend_interfaces_base = extend_interfaces< Interfaces... >
	Typedef to the base of this class. More...

using	iids = typename extend_interfaces_base::ext_iids

Public Types inherited from extend_interfaces< Interfaces... >
using	ext_iids = typename Gaudi::interface_list_cat< typename Interfaces::ext_iids... >::type
	take union of the ext_iids of all Interfaces... More...

Public Member Functions
	Generator (IInterface *engine)

StatusCode	initialize (const IRndmGen::Param &par) override
	Initialize the generator. More...

double	shoot () const override
	Single shot. More...

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

double	shoot () const

Public Member Functions inherited from RndmGen
StatusCode	initialize (const IRndmGen::Param &par) override
	IRndmGen implementation More...

StatusCode	finalize () override
	Finalize the generator. More...

const InterfaceID &	type () const override
	Random number generator type. More...

long	ID () const override
	Random number generator ID. More...

const IRndmGen::Param *	parameters () const override
	Access to random number generator parameters. More...

StatusCode	shootArray (std::vector< double > &array, long howmany, long start) const override
	Multiple shots returning vector with random number according to specified distribution. More...

Public Member Functions inherited from implements< IRndmGen >
void *	i_cast (const InterfaceID &tid) const override
	Implementation of IInterface::i_cast. More...

StatusCode	queryInterface (const InterfaceID &ti, void **pp) override
	Implementation of IInterface::queryInterface. More...

std::vector< std::string >	getInterfaceNames () const override
	Implementation of IInterface::getInterfaceNames. More...

	implements ()=default
	Default constructor. More...

	implements (const implements &)
	Copy constructor (zero the reference count) More...

implements &	operator= (const implements &)
	Assignment operator (do not touch the reference count). More...

unsigned long	addRef () override
	Reference Interface instance More...

unsigned long	release () override
	Release Interface instance More...

unsigned long	refCount () const override
	Current reference count More...

Protected Attributes
CLHEP::HepRandomEngine *	m_hepEngine = nullptr

TYPE *	m_specs = nullptr

Protected Attributes inherited from RndmGen
std::unique_ptr< IRndmGen::Param >	m_params
	Generation parameters. More...

SmartIF< IRndmEngine >	m_engine
	Hosting service: Access must always be possible. More...

Protected Attributes inherited from implements< IRndmGen >
std::atomic_ulong	m_refCount
	Reference counter More...

Additional Inherited Members
Protected Member Functions inherited from RndmGen
	RndmGen (IInterface *engine)
	Standard Constructor. More...

Detailed Description

template<class TYPE>
class HepRndm::Generator< TYPE >

Definition at line 37 of file HepRndmGenerator.h.

Member Typedef Documentation

◆ Parameters

template<class TYPE >

typedef TYPE HepRndm::Generator< TYPE >::Parameters

Definition at line 39 of file HepRndmGenerator.h.

Constructor & Destructor Documentation

◆ Generator()

template<class TYPE >

HepRndm::Generator< TYPE >::Generator ( IInterface * engine )

inline

Definition at line 46 of file HepRndmGenerator.h.

46 : RndmGen( engine ) {}

Member Function Documentation

◆ initialize()

template<class TYPE >

StatusCode HepRndm::Generator< TYPE >::initialize ( const IRndmGen::Param & par )

override

Initialize the generator.

Definition at line 55 of file HepRndmGenerator.h.

                                                                    {
     StatusCode status = RndmGen::initialize( par );
     if ( status.isSuccess() ) {
       try {
         m_specs = dynamic_cast<TYPE*>( m_params.get() );
         if ( m_specs ) {
           BaseEngine* engine = dynamic_cast<BaseEngine*>( m_engine.get() );
           if ( engine ) {
             m_hepEngine = engine->hepEngine();
             if ( m_hepEngine ) { return StatusCode::SUCCESS; }
           }
         }
       } catch ( ... ) {}
     }
     return StatusCode::FAILURE;
   }

◆ shoot() [1/14]

double HepRndm::Generator< Rndm::Flat >::shoot ( ) const

Definition at line 63 of file HepRndmGenerators.cpp.

                                           {
     return RandFlat::shoot( m_hepEngine, m_specs->minimum(), m_specs->maximum() );
   }

◆ shoot() [2/14]

double HepRndm::Generator< Rndm::Bit >::shoot ( ) const

Definition at line 69 of file HepRndmGenerators.cpp.

                                          {
     return RandFlat::shootBit( m_hepEngine );
   }

◆ shoot() [3/14]

double HepRndm::Generator< Rndm::Gauss >::shoot ( ) const

Definition at line 75 of file HepRndmGenerators.cpp.

                                            {
     return RandGaussQ::shoot( m_hepEngine, m_specs->mean(), m_specs->sigma() );
   }

◆ shoot() [4/14]

double HepRndm::Generator< Rndm::Poisson >::shoot ( ) const

Definition at line 87 of file HepRndmGenerators.cpp.

                                              {
     return RandPoisson::shoot( m_hepEngine, m_specs->mean() );
   }

◆ shoot() [5/14]

double HepRndm::Generator< Rndm::Exponential >::shoot ( ) const

Definition at line 98 of file HepRndmGenerators.cpp.

                                                  {
     return RandExponential::shoot( m_hepEngine, m_specs->mean() );
   }

◆ shoot() [6/14]

double HepRndm::Generator< Rndm::BreitWigner >::shoot ( ) const

Definition at line 104 of file HepRndmGenerators.cpp.

                                                  {
     return RandBreitWigner::shoot( m_hepEngine, m_specs->mean(), m_specs->gamma() );
   }

◆ shoot() [7/14]

double HepRndm::Generator< Rndm::BreitWignerCutOff >::shoot ( ) const

Definition at line 110 of file HepRndmGenerators.cpp.

                                                        {
     return RandBreitWigner::shoot( m_hepEngine, m_specs->mean(), m_specs->gamma(), m_specs->cutOff() );
   }

◆ shoot() [8/14]

double HepRndm::Generator< Rndm::Chi2 >::shoot ( ) const

Definition at line 116 of file HepRndmGenerators.cpp.

                                           {
     return RandChiSquare::shoot( m_hepEngine, m_specs->nDOF() );
   }

◆ shoot() [9/14]

double HepRndm::Generator< Rndm::StudentT >::shoot ( ) const

Definition at line 122 of file HepRndmGenerators.cpp.

                                               {
     return RandStudentT::shoot( m_hepEngine, m_specs->aValue() );
   }

◆ shoot() [10/14]

double HepRndm::Generator< Rndm::Gamma >::shoot ( ) const

Definition at line 127 of file HepRndmGenerators.cpp.

                                            {
     return RandGamma::shoot( m_hepEngine, m_specs->kValue(), m_specs->lambda() );
   }

◆ shoot() [11/14]

double HepRndm::Generator< Rndm::Binomial >::shoot ( ) const

Definition at line 133 of file HepRndmGenerators.cpp.

                                               {
     return RandBinomial::shoot( m_hepEngine, m_specs->nEvent(), m_specs->probability() );
   }

◆ shoot() [12/14]

double HepRndm::Generator< Rndm::Landau >::shoot ( ) const

Definition at line 154 of file HepRndmGenerators.cpp.

                                             {
     //  Generate a random number following a Landau distribution
     //  with average value mean and rms
     //  Converted by Rene Brun from CERNLIB routine ranlan(G110)
     static double f[982] = {
         0,         0,         0,         0,         0,         -2.244733, -2.204365, -2.168163, -2.135219, -2.104898,
         -2.076740, -2.050397, -2.025605, -2.002150, -1.979866, -1.958612, -1.938275, -1.918760, -1.899984, -1.881879,
         -1.864385, -1.847451, -1.831030, -1.815083, -1.799574, -1.784473, -1.769751, -1.755383, -1.741346, -1.727620,
         -1.714187, -1.701029, -1.688130, -1.675477, -1.663057, -1.650858, -1.638868, -1.627078, -1.615477, -1.604058,
         -1.592811, -1.581729, -1.570806, -1.560034, -1.549407, -1.538919, -1.528565, -1.518339, -1.508237, -1.498254,
         -1.488386, -1.478628, -1.468976, -1.459428, -1.449979, -1.440626, -1.431365, -1.422195, -1.413111, -1.404112,
         -1.395194, -1.386356, -1.377594, -1.368906, -1.360291, -1.351746, -1.343269, -1.334859, -1.326512, -1.318229,
         -1.310006, -1.301843, -1.293737, -1.285688, -1.277693, -1.269752, -1.261863, -1.254024, -1.246235, -1.238494,
         -1.230800, -1.223153, -1.215550, -1.207990, -1.200474, -1.192999, -1.185566, -1.178172, -1.170817, -1.163500,
         -1.156220, -1.148977, -1.141770, -1.134598, -1.127459, -1.120354, -1.113282, -1.106242, -1.099233, -1.092255,
         -1.085306, -1.078388, -1.071498, -1.064636, -1.057802, -1.050996, -1.044215, -1.037461, -1.030733, -1.024029,
         -1.017350, -1.010695, -1.004064, -.997456,  -.990871,  -.984308,  -.977767,  -.971247,  -.964749,  -.958271,
         -.951813,  -.945375,  -.938957,  -.932558,  -.926178,  -.919816,  -.913472,  -.907146,  -.900838,  -.894547,
         -.888272,  -.882014,  -.875773,  -.869547,  -.863337,  -.857142,  -.850963,  -.844798,  -.838648,  -.832512,
         -.826390,  -.820282,  -.814187,  -.808106,  -.802038,  -.795982,  -.789940,  -.783909,  -.777891,  -.771884,
         -.765889,  -.759906,  -.753934,  -.747973,  -.742023,  -.736084,  -.730155,  -.724237,  -.718328,  -.712429,
         -.706541,  -.700661,  -.694791,  -.688931,  -.683079,  -.677236,  -.671402,  -.665576,  -.659759,  -.653950,
         -.648149,  -.642356,  -.636570,  -.630793,  -.625022,  -.619259,  -.613503,  -.607754,  -.602012,  -.596276,
         -.590548,  -.584825,  -.579109,  -.573399,  -.567695,  -.561997,  -.556305,  -.550618,  -.544937,  -.539262,
         -.533592,  -.527926,  -.522266,  -.516611,  -.510961,  -.505315,  -.499674,  -.494037,  -.488405,  -.482777,
         -.477153,  -.471533,  -.465917,  -.460305,  -.454697,  -.449092,  -.443491,  -.437893,  -.432299,  -.426707,
         -.421119,  -.415534,  -.409951,  -.404372,  -.398795,  -.393221,  -.387649,  -.382080,  -.376513,  -.370949,
         -.365387,  -.359826,  -.354268,  -.348712,  -.343157,  -.337604,  -.332053,  -.326503,  -.320955,  -.315408,
         -.309863,  -.304318,  -.298775,  -.293233,  -.287692,  -.282152,  -.276613,  -.271074,  -.265536,  -.259999,
         -.254462,  -.248926,  -.243389,  -.237854,  -.232318,  -.226783,  -.221247,  -.215712,  -.210176,  -.204641,
         -.199105,  -.193568,  -.188032,  -.182495,  -.176957,  -.171419,  -.165880,  -.160341,  -.154800,  -.149259,
         -.143717,  -.138173,  -.132629,  -.127083,  -.121537,  -.115989,  -.110439,  -.104889,  -.099336,  -.093782,
         -.088227,  -.082670,  -.077111,  -.071550,  -.065987,  -.060423,  -.054856,  -.049288,  -.043717,  -.038144,
         -.032569,  -.026991,  -.021411,  -.015828,  -.010243,  -.004656,  .000934,   .006527,   .012123,   .017722,
         .023323,   .028928,   .034535,   .040146,   .045759,   .051376,   .056997,   .062620,   .068247,   .073877,
         .079511,   .085149,   .090790,   .096435,   .102083,   .107736,   .113392,   .119052,   .124716,   .130385,
         .136057,   .141734,   .147414,   .153100,   .158789,   .164483,   .170181,   .175884,   .181592,   .187304,
         .193021,   .198743,   .204469,   .210201,   .215937,   .221678,   .227425,   .233177,   .238933,   .244696,
         .250463,   .256236,   .262014,   .267798,   .273587,   .279382,   .285183,   .290989,   .296801,   .302619,
         .308443,   .314273,   .320109,   .325951,   .331799,   .337654,   .343515,   .349382,   .355255,   .361135,
         .367022,   .372915,   .378815,   .384721,   .390634,   .396554,   .402481,   .408415,   .414356,   .420304,
         .426260,   .432222,   .438192,   .444169,   .450153,   .456145,   .462144,   .468151,   .474166,   .480188,
         .486218,   .492256,   .498302,   .504356,   .510418,   .516488,   .522566,   .528653,   .534747,   .540850,
         .546962,   .553082,   .559210,   .565347,   .571493,   .577648,   .583811,   .589983,   .596164,   .602355,
         .608554,   .614762,   .620980,   .627207,   .633444,   .639689,   .645945,   .652210,   .658484,   .664768,
         .671062,   .677366,   .683680,   .690004,   .696338,   .702682,   .709036,   .715400,   .721775,   .728160,
         .734556,   .740963,   .747379,   .753807,   .760246,   .766695,   .773155,   .779627,   .786109,   .792603,
         .799107,   .805624,   .812151,   .818690,   .825241,   .831803,   .838377,   .844962,   .851560,   .858170,
         .864791,   .871425,   .878071,   .884729,   .891399,   .898082,   .904778,   .911486,   .918206,   .924940,
         .931686,   .938446,   .945218,   .952003,   .958802,   .965614,   .972439,   .979278,   .986130,   .992996,
         .999875,   1.006769,  1.013676,  1.020597,  1.027533,  1.034482,  1.041446,  1.048424,  1.055417,  1.062424,
         1.069446,  1.076482,  1.083534,  1.090600,  1.097681,  1.104778,  1.111889,  1.119016,  1.126159,  1.133316,
         1.140490,  1.147679,  1.154884,  1.162105,  1.169342,  1.176595,  1.183864,  1.191149,  1.198451,  1.205770,
         1.213105,  1.220457,  1.227826,  1.235211,  1.242614,  1.250034,  1.257471,  1.264926,  1.272398,  1.279888,
         1.287395,  1.294921,  1.302464,  1.310026,  1.317605,  1.325203,  1.332819,  1.340454,  1.348108,  1.355780,
         1.363472,  1.371182,  1.378912,  1.386660,  1.394429,  1.402216,  1.410024,  1.417851,  1.425698,  1.433565,
         1.441453,  1.449360,  1.457288,  1.465237,  1.473206,  1.481196,  1.489208,  1.497240,  1.505293,  1.513368,
         1.521465,  1.529583,  1.537723,  1.545885,  1.554068,  1.562275,  1.570503,  1.578754,  1.587028,  1.595325,
         1.603644,  1.611987,  1.620353,  1.628743,  1.637156,  1.645593,  1.654053,  1.662538,  1.671047,  1.679581,
         1.688139,  1.696721,  1.705329,  1.713961,  1.722619,  1.731303,  1.740011,  1.748746,  1.757506,  1.766293,
         1.775106,  1.783945,  1.792810,  1.801703,  1.810623,  1.819569,  1.828543,  1.837545,  1.846574,  1.855631,
         1.864717,  1.873830,  1.882972,  1.892143,  1.901343,  1.910572,  1.919830,  1.929117,  1.938434,  1.947781,
         1.957158,  1.966566,  1.976004,  1.985473,  1.994972,  2.004503,  2.014065,  2.023659,  2.033285,  2.042943,
         2.052633,  2.062355,  2.072110,  2.081899,  2.091720,  2.101575,  2.111464,  2.121386,  2.131343,  2.141334,
         2.151360,  2.161421,  2.171517,  2.181648,  2.191815,  2.202018,  2.212257,  2.222533,  2.232845,  2.243195,
         2.253582,  2.264006,  2.274468,  2.284968,  2.295507,  2.306084,  2.316701,  2.327356,  2.338051,  2.348786,
         2.359562,  2.370377,  2.381234,  2.392131,  2.403070,  2.414051,  2.425073,  2.436138,  2.447246,  2.458397,
         2.469591,  2.480828,  2.492110,  2.503436,  2.514807,  2.526222,  2.537684,  2.549190,  2.560743,  2.572343,
         2.583989,  2.595682,  2.607423,  2.619212,  2.631050,  2.642936,  2.654871,  2.666855,  2.678890,  2.690975,
         2.703110,  2.715297,  2.727535,  2.739825,  2.752168,  2.764563,  2.777012,  2.789514,  2.802070,  2.814681,
         2.827347,  2.840069,  2.852846,  2.865680,  2.878570,  2.891518,  2.904524,  2.917588,  2.930712,  2.943894,
         2.957136,  2.970439,  2.983802,  2.997227,  3.010714,  3.024263,  3.037875,  3.051551,  3.065290,  3.079095,
         3.092965,  3.106900,  3.120902,  3.134971,  3.149107,  3.163312,  3.177585,  3.191928,  3.206340,  3.220824,
         3.235378,  3.250005,  3.264704,  3.279477,  3.294323,  3.309244,  3.324240,  3.339312,  3.354461,  3.369687,
         3.384992,  3.400375,  3.415838,  3.431381,  3.447005,  3.462711,  3.478500,  3.494372,  3.510328,  3.526370,
         3.542497,  3.558711,  3.575012,  3.591402,  3.607881,  3.624450,  3.641111,  3.657863,  3.674708,  3.691646,
         3.708680,  3.725809,  3.743034,  3.760357,  3.777779,  3.795300,  3.812921,  3.830645,  3.848470,  3.866400,
         3.884434,  3.902574,  3.920821,  3.939176,  3.957640,  3.976215,  3.994901,  4.013699,  4.032612,  4.051639,
         4.070783,  4.090045,  4.109425,  4.128925,  4.148547,  4.168292,  4.188160,  4.208154,  4.228275,  4.248524,
         4.268903,  4.289413,  4.310056,  4.330832,  4.351745,  4.372794,  4.393982,  4.415310,  4.436781,  4.458395,
         4.480154,  4.502060,  4.524114,  4.546319,  4.568676,  4.591187,  4.613854,  4.636678,  4.659662,  4.682807,
         4.706116,  4.729590,  4.753231,  4.777041,  4.801024,  4.825179,  4.849511,  4.874020,  4.898710,  4.923582,
         4.948639,  4.973883,  4.999316,  5.024942,  5.050761,  5.076778,  5.102993,  5.129411,  5.156034,  5.182864,
         5.209903,  5.237156,  5.264625,  5.292312,  5.320220,  5.348354,  5.376714,  5.405306,  5.434131,  5.463193,
         5.492496,  5.522042,  5.551836,  5.581880,  5.612178,  5.642734,  5.673552,  5.704634,  5.735986,  5.767610,
         5.799512,  5.831694,  5.864161,  5.896918,  5.929968,  5.963316,  5.996967,  6.030925,  6.065194,  6.099780,
         6.134687,  6.169921,  6.205486,  6.241387,  6.277630,  6.314220,  6.351163,  6.388465,  6.426130,  6.464166,
         6.502578,  6.541371,  6.580553,  6.620130,  6.660109,  6.700495,  6.741297,  6.782520,  6.824173,  6.866262,
         6.908795,  6.951780,  6.995225,  7.039137,  7.083525,  7.128398,  7.173764,  7.219632,  7.266011,  7.312910,
         7.360339,  7.408308,  7.456827,  7.505905,  7.555554,  7.605785,  7.656608,  7.708035,  7.760077,  7.812747,
         7.866057,  7.920019,  7.974647,  8.029953,  8.085952,  8.142657,  8.200083,  8.258245,  8.317158,  8.376837,
         8.437300,  8.498562,  8.560641,  8.623554,  8.687319,  8.751955,  8.817481,  8.883916,  8.951282,  9.019600,
         9.088889,  9.159174,  9.230477,  9.302822,  9.376233,  9.450735,  9.526355,  9.603118,  9.681054,  9.760191,
         9.840558,  9.922186,  10.005107, 10.089353, 10.174959, 10.261958, 10.350389, 10.440287, 10.531693, 10.624646,
         10.719188, 10.815362, 10.913214, 11.012789, 11.114137, 11.217307, 11.322352, 11.429325, 11.538283, 11.649285,
         11.762390, 11.877664, 11.995170, 12.114979, 12.237161, 12.361791, 12.488946, 12.618708, 12.751161, 12.886394,
         13.024498, 13.165570, 13.309711, 13.457026, 13.607625, 13.761625, 13.919145, 14.080314, 14.245263, 14.414134,
         14.587072, 14.764233, 14.945778, 15.131877, 15.322712, 15.518470, 15.719353, 15.925570, 16.137345, 16.354912,
         16.578520, 16.808433, 17.044929, 17.288305, 17.538873, 17.796967, 18.062943, 18.337176, 18.620068, 18.912049,
         19.213574, 19.525133, 19.847249, 20.180480, 20.525429, 20.882738, 21.253102, 21.637266, 22.036036, 22.450278,
         22.880933, 23.329017, 23.795634, 24.281981, 24.789364, 25.319207, 25.873062, 26.452634, 27.059789, 27.696581,
         28.365274, 29.068370, 29.808638, 30.589157, 31.413354, 32.285060, 33.208568, 34.188705, 35.230920, 36.341388,
         37.527131, 38.796172, 40.157721, 41.622399, 43.202525, 44.912465, 46.769077, 48.792279, 51.005773, 53.437996,
         56.123356, 59.103894 };
  
     if ( m_specs->sigma() > 0 ) {
       double mean  = m_specs->mean();
       double sigma = m_specs->sigma();
       double x     = RandFlat::shoot( m_hepEngine, 0., 1. );
       double u     = 1000.0 * x;
       long   i     = long( u );
       double ranlan, v;
       u -= i;
       if ( i >= 70 && i < 800 ) {
         ranlan = f[i - 1] + u * ( f[i] - f[i - 1] );
       } else if ( i >= 7 && i <= 980 ) {
         ranlan = f[i - 1] + u * ( f[i] - f[i - 1] - 0.25 * ( 1 - u ) * ( f[i + 1] - f[i] - f[i - 1] + f[i - 2] ) );
       } else if ( i < 7 ) {
         v      = log( x );
         u      = 1 / v;
         ranlan = ( ( 0.99858950 + ( 3.45213058E1 + 1.70854528E1 * u ) * u ) /
                    ( 1 + ( 3.41760202E1 + 4.01244582 * u ) * u ) ) *
                  ( -log( -0.91893853 - v ) - 1 );
       } else {
         u = 1 - x;
         v = u * u;
         if ( x <= 0.999 ) {
           ranlan = ( 1.00060006 + 2.63991156E2 * u + 4.37320068E3 * v ) /
                    ( ( 1 + 2.57368075E2 * u + 3.41448018E3 * v ) * u );
         } else {
           ranlan = ( 1.00001538 + 6.07514119E3 * u + 7.34266409E5 * v ) /
                    ( ( 1 + 6.06511919E3 * u + 6.94021044E5 * v ) * u );
         }
       }
       return mean + sigma * ranlan;
     }
     return DBL_MAX;
   }

◆ shoot() [13/14]

double HepRndm::Generator< Rndm::GaussianTail >::shoot ( ) const

Definition at line 331 of file HepRndmGenerators.cpp.

                                                   {
     /* Code obtained and adapted from GSL
      gsl_ran_gaussian_tail (const gsl_rng * r, const double a, const double sigma)
      Returns a gaussian random variable larger than a
      This implementation does one-sided upper-tailed deviates.
     */
     double a     = m_specs->cut();
     double sigma = m_specs->sigma();
     double s     = a / sigma;
     if ( s < 1 ) {
       /* For small s, use a direct rejection method. The limit s < 1
          can be adjusted to optimise the overall efficiency */
       double x;
       do {
         // x = gsl_ran_gaussian (r, 1.0);
         x = RandGaussQ::shoot( m_hepEngine, 0.0, 1.0 );
       } while ( x < s );
       return x * sigma;
     } else {
       /* Use the "supertail" deviates from the last two steps
        * of Marsaglia's rectangle-wedge-tail method, as described
        * in Knuth, v2, 3rd ed, pp 123-128.  (See also exercise 11, p139,
        * and the solution, p586.)
        */
       double u, v, x;
       do {
         // u = gsl_rng_uniform (r);
         u = RandFlat::shoot( m_hepEngine );
         do {
           // v = gsl_rng_uniform (r);
           v = RandFlat::shoot( m_hepEngine );
         } while ( std::abs( v ) < std::numeric_limits<double>::epsilon() * m_specs->cut() );
         x = sqrt( s * s - 2 * log( v ) );
       } while ( x * u > s );
       return x * sigma;
     }
   }

◆ shoot() [14/14]

template<class TYPE >

double HepRndm::Generator< TYPE >::shoot ( ) const

override

Single shot.

Member Data Documentation

◆ m_hepEngine

template<class TYPE >

CLHEP::HepRandomEngine* HepRndm::Generator< TYPE >::m_hepEngine = nullptr

protected

Definition at line 42 of file HepRndmGenerator.h.

◆ m_specs

template<class TYPE >

TYPE* HepRndm::Generator< TYPE >::m_specs = nullptr

protected

Definition at line 43 of file HepRndmGenerator.h.

The documentation for this class was generated from the following file:

GaudiSvc/src/RndmGenSvc/HepRndmGenerator.h

Public Types

Public Member Functions

Protected Attributes

Additional Inherited Members

Detailed Description

template<class TYPE> class HepRndm::Generator< TYPE >

Member Typedef Documentation

◆ Parameters

Constructor & Destructor Documentation

◆ Generator()

Member Function Documentation

◆ initialize()

◆ shoot() [1/14]

◆ shoot() [2/14]

◆ shoot() [3/14]

◆ shoot() [4/14]

◆ shoot() [5/14]

◆ shoot() [6/14]

◆ shoot() [7/14]

◆ shoot() [8/14]

◆ shoot() [9/14]

◆ shoot() [10/14]

◆ shoot() [11/14]

◆ shoot() [12/14]

◆ shoot() [13/14]

◆ shoot() [14/14]

Member Data Documentation

◆ m_hepEngine

◆ m_specs

template<class TYPE>
class HepRndm::Generator< TYPE >