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 74 of file SherpaHadronizer.cc.

Constructor & Destructor Documentation

CMS_SHERPA_RNG::CMS_SHERPA_RNG ( )

inline

Definition at line 77 of file SherpaHadronizer.cc.

References gather_cfg::cout, and setRandomEngine().

                    : randomEngine(nullptr) {
     std::cout << "Use stored reference for the external RNG" << std::endl; 
     setRandomEngine(GetExternalEngine());   
   }

Member Function Documentation

double CMS_SHERPA_RNG::Get ( )

overrideprivate

Definition at line 309 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();
   
 }