| # Gaudi Framework, version v22r4 |

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Public Member Functions | Protected Attributes

# HepRndm::Engine< TYPE > Class Template Reference

`#include <HepRndmEngine.h>`

Inheritance diagram for HepRndm::Engine< TYPE >:
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Collaboration diagram for HepRndm::Engine< TYPE >:
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List of all members.

## Public Member Functions
| Engine (const std::string &name, ISvcLocator *loc)
| Standard Constructor.
virtual | ~Engine ()
| Standard Destructor.
virtual StatusCode | initialize ()
| Initialize the Engine.
virtual StatusCode | finalize ()
| Finalize the Engine.
virtual StatusCode | initializeEngine ()
| Create/Initialize new HepEngine....
virtual double | rndm () const
| Single shot / This was declared "virtual double rndm()" which causes / compiler warnings since the signature if different than / that for RndmEngine::rndm(). I've assumed that the difference / is an error. If it is in fact a deliberate addition of a / new function, remove the "const" below and uncomment the / subsequent lines.
StatusCode | setSeeds (const std::vector< long > &seed)
| virtual double rndm() const { return BaseEngine::rndm( ); }
StatusCode | seeds (std::vector< long > &seed) const
| Retrieve seeds.
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
template<>
StatusCode | initializeEngine ()
## Protected Attributes
std::vector< long > | m_seeds
int | m_row
int | m_col
int | m_lux
bool | m_useTable
bool | m_setSingleton

## Detailed Description

### template<class TYPE>
class HepRndm::Engine< TYPE >

Definition at line 24 of file HepRndmEngine.h.

## Constructor & Destructor Documentation

template<class TYPE >

HepRndm::Engine< TYPE >::Engine | ( | const std::string & | name,
|  | ISvcLocator * | loc
| ) |  |

Standard Constructor.

Definition at line 58 of file HepRndmEngines.cpp.

      : BaseEngine (nam, loc)    {
        declareProperty("Seeds",       m_seeds);
        declareProperty("Column",      m_col = 0);
        declareProperty("Row",         m_row = 1);
        declareProperty("Luxury",      m_lux = 3);
        declareProperty("UseTable",    m_useTable     = false);
        declareProperty("SetSingleton",m_setSingleton = false);
      }

template<class TYPE >

HepRndm::Engine< TYPE >::~Engine | ( | ) | `[virtual]`

Standard Destructor.

Definition at line 69 of file HepRndmEngines.cpp.

                                                           {
      }

## Member Function Documentation

template<class TYPE >

StatusCode HepRndm::Engine< TYPE >::finalize | ( | void | ) | `[virtual]`

Finalize the Engine.

Reimplemented from RndmEngine.

Definition at line 118 of file HepRndmEngines.cpp.

                                                                       {
        if ( m_hepEngine )   {
          HepRandom::setTheEngine(0);
          delete m_hepEngine;
        }
        m_seeds.clear();
        m_hepEngine = 0;
        return RndmEngine::finalize();
      }

template<class TYPE >

StatusCode HepRndm::Engine< TYPE >::initialize | ( | void | ) | `[virtual]`

Initialize the Engine.

Reimplemented from RndmEngine.

Definition at line 73 of file HepRndmEngines.cpp.

                                                                         {
        m_seeds.erase(m_seeds.begin(), m_seeds.end());
        StatusCode status = RndmEngine::initialize();
        if ( m_seeds.size() == 0 )  {
          // Default seeds
          long theSeed = 1234567;
          m_seeds.push_back(theSeed);
          m_seeds.push_back(0);
        }
        MsgStream log(msgSvc(), name());
        if ( status.isSuccess() )   {
          status = initializeEngine();
          if ( status.isSuccess() )   {
            log << MSG::INFO << "Generator engine type:"
                      << System::typeinfoName(typeid(TYPE))
                      << endmsg;
            if ( m_useTable )   {
              if ( m_row > 214 || m_col > 1 )   {
                log << MSG::ERROR << "Generator engine seed table has dimension [215][2], you gave:"
                    << " Row=" << m_row << " Column:" << m_col << endmsg;
                status = StatusCode::FAILURE;
              }
              else    {
                log << MSG::INFO << "Generator engine seeds from table."
                    << " Row=" << m_row << " Column:" << m_col << endmsg;
              }
            }
            log << "Current Seed:" << m_hepEngine->getSeed();
            log << " Luxury:" << m_lux;
            log << endmsg;
            // Use the default static engine if required (e.g. for GEANT4)
            if ( m_setSingleton )   {
                HepRandom::setTheEngine(m_hepEngine);
              log << "This is the GEANT4 engine!" << endmsg;
            }
            return status;
          }
        }
        log << MSG::ERROR << "Cannot initialze random engine of type:"
              << System::typeinfoName(typeid(TYPE))
            << endmsg;
        return status;
      }

template<>

StatusCode HepRndm::Engine< HepJamesRandom >::initializeEngine | ( | ) |

Definition at line 217 of file HepRndmEngines.cpp.

                                                                       {
        m_hepEngine = (m_useTable) ? new HepJamesRandom(m_row, m_col) : new HepJamesRandom(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< Ranlux64Engine >::initializeEngine | ( | ) |

Definition at line 207 of file HepRndmEngines.cpp.

                                                                       {
        m_hepEngine = (m_useTable) ? new Ranlux64Engine(m_row, m_col, m_lux) : new Ranlux64Engine(m_seeds[0], m_lux);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< RanluxEngine >::initializeEngine | ( | ) |

Definition at line 202 of file HepRndmEngines.cpp.

                                                                     {
        m_hepEngine = (m_useTable) ? new RanluxEngine(m_row, m_col, m_lux) : new RanluxEngine(m_seeds[0], m_lux);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< RanshiEngine >::initializeEngine | ( | ) |

Definition at line 197 of file HepRndmEngines.cpp.

                                                                     {
        m_hepEngine = (m_useTable) ? new RanshiEngine(m_row, m_col) : new RanshiEngine(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< TripleRand >::initializeEngine | ( | ) |

Definition at line 172 of file HepRndmEngines.cpp.

                                                                   {
        m_hepEngine = (m_useTable) ? new TripleRand(m_row, m_col) : new TripleRand(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< Hurd288Engine >::initializeEngine | ( | ) |

Definition at line 187 of file HepRndmEngines.cpp.

                                                                      {
        m_hepEngine = (m_useTable) ? new Hurd288Engine(m_row, m_col) : new Hurd288Engine(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< MTwistEngine >::initializeEngine | ( | ) |

Definition at line 212 of file HepRndmEngines.cpp.

                                                                     {
        m_hepEngine = (m_useTable) ? new MTwistEngine(m_row, m_col) : new MTwistEngine(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< DRand48Engine >::initializeEngine | ( | ) |

Definition at line 177 of file HepRndmEngines.cpp.

                                                                      {
        m_hepEngine = (m_useTable) ? new DRand48Engine(m_row, m_col) : new DRand48Engine(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< Hurd160Engine >::initializeEngine | ( | ) |

Definition at line 182 of file HepRndmEngines.cpp.

                                                                      {
        m_hepEngine = (m_useTable) ? new Hurd160Engine(m_row, m_col) : new Hurd160Engine(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< DualRand >::initializeEngine | ( | ) |

Definition at line 167 of file HepRndmEngines.cpp.

                                                                 {
        m_hepEngine = (m_useTable) ? new DualRand(m_row, m_col) : new DualRand(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<>

StatusCode HepRndm::Engine< RanecuEngine >::initializeEngine | ( | ) |

Definition at line 192 of file HepRndmEngines.cpp.

                                                                     {
        m_hepEngine = (m_useTable) ? new RanecuEngine(m_row) : new RanecuEngine(m_seeds[0]);
        return StatusCode::SUCCESS;
      }

template<class TYPE >

virtual StatusCode HepRndm::Engine< TYPE >::initializeEngine | ( | ) | `[virtual]`

Create/Initialize new HepEngine....

template<class TYPE >

double HepRndm::Engine< TYPE >::rndm | ( | ) | const`[virtual]`

Single shot / This was declared "virtual double rndm()" which causes / compiler warnings since the signature if different than / that for RndmEngine::rndm(). I've assumed that the difference / is an error. If it is in fact a deliberate addition of a / new function, remove the "const" below and uncomment the / subsequent lines.

Reimplemented from RndmEngine.

Definition at line 129 of file HepRndmEngines.cpp.

                                                             {
        return m_hepEngine->flat();
      }

template<class TYPE >

StatusCode HepRndm::Engine< TYPE >::seeds | ( | std::vector< long > & | seed ) | const

Retrieve seeds.

Definition at line 151 of file HepRndmEngines.cpp.

                                                                                        {
        /*
        const long *s = m_hepEngine->getSeeds();
        for ( size_t i = 0; i < NUMBER_OF_SEEDS; i++ )   {
          seed.push_back(s[i]);
          if ( m_seeds.size() > i )
            m_seeds[i] = s[i];
          else
            m_seeds.push_back(s[i]);
        }
        */
        seed.push_back(m_hepEngine->getSeed());
        return StatusCode::SUCCESS;
      }

template<class TYPE >

StatusCode HepRndm::Engine< TYPE >::setSeeds | ( | const std::vector< long > & | seed ) |

virtual double rndm() const { return BaseEngine::rndm( ); }

Set seeds

Definition at line 134 of file HepRndmEngines.cpp.

                                                                                           {
        typedef std::vector<long> seed_t;
        m_seeds.clear();
        for ( seed_t::const_iterator i = seed.begin(); i < seed.end(); i++ )   {
          m_seeds.push_back(*i);
        }
        if ( m_seeds.size() > 0 )   {
          if ( m_seeds.back() != 0 )    {
            m_seeds.push_back(0);
          }
          m_hepEngine->setSeeds(&m_seeds[0], m_lux);
          return StatusCode::SUCCESS;
        }
        return StatusCode::FAILURE;
      }

## Member Data Documentation

template<class TYPE >

int HepRndm::Engine< TYPE >::m_col`[protected]`

Definition at line 26 of file HepRndmEngine.h.

template<class TYPE >

int HepRndm::Engine< TYPE >::m_lux`[protected]`

Definition at line 26 of file HepRndmEngine.h.

template<class TYPE >

int HepRndm::Engine< TYPE >::m_row`[protected]`

Definition at line 26 of file HepRndmEngine.h.

template<class TYPE >

std::vector<long> HepRndm::Engine< TYPE >::m_seeds`[mutable, protected]`

Definition at line 24 of file HepRndmEngine.h.

template<class TYPE >

bool HepRndm::Engine< TYPE >::m_setSingleton`[protected]`

Definition at line 27 of file HepRndmEngine.h.

template<class TYPE >

bool HepRndm::Engine< TYPE >::m_useTable`[protected]`

Definition at line 27 of file HepRndmEngine.h.

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

- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r4/GaudiSvc/src/RndmGenSvc/HepRndmEngine.h
- /afs/cern.ch/sw/Gaudi/releases/GAUDI/GAUDI_v22r4/GaudiSvc/src/RndmGenSvc/HepRndmEngines.cpp

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