CMS_SHERPA_RNG Class Reference

Inheritance diagram for CMS_SHERPA_RNG:

Public Member Functions
	CMS_SHERPA_RNG ()
void	setRandomEngine (CLHEP::HepRandomEngine *v)

Private Member Functions
double	Get () override

Private Attributes
CLHEP::HepRandomEngine *	randomEngine

Detailed Description

Definition at line 84 of file SherpaHadronizer.cc.

Constructor & Destructor Documentation

CMS_SHERPA_RNG::CMS_SHERPA_RNG ( )

inline

Definition at line 87 of file SherpaHadronizer.cc.

References setRandomEngine().

                   : randomEngine(nullptr) {
    edm::LogVerbatim("SherpaHadronizer") << "Use stored reference for the external RNG";
    setRandomEngine(GetExternalEngine());
  }

Member Function Documentation

double CMS_SHERPA_RNG::Get ( )

overrideprivate

Definition at line 363 of file SherpaHadronizer.cc.

References edm::hlt::Exception, edm::errors::LogicError, and randomEngine.

                           {
  if(randomEngine == nullptr) {
    throw edm::Exception(edm::errors::LogicError)
      << "The Sherpa code attempted to a generate random number while\n"
      << "the engine pointer was null. This might mean that the code\n"
      << "was modified to generate a random number outside the event and\n"
      << "beginLuminosityBlock methods, which is not allowed.\n";
  }
  return randomEngine->flat();

}

void CMS_SHERPA_RNG::setRandomEngine ( CLHEP::HepRandomEngine *  v )

inline

Definition at line 91 of file SherpaHadronizer.cc.

References randomEngine, and findQualityFiles::v.

Referenced by CMS_SHERPA_RNG(), and SherpaHadronizer::doSetRandomEngine().

{ randomEngine = v; }

Member Data Documentation

CLHEP::HepRandomEngine* CMS_SHERPA_RNG::randomEngine

private

Definition at line 95 of file SherpaHadronizer.cc.

Referenced by Get(), and setRandomEngine().