Geant4EventSeed.h File Reference

#include "DDG4/Geant4RunAction.h"

Go to the source code of this file.

Classes
class	DD4hep::Simulation::Geant4EventSeed

Namespaces
	DD4hep
	Namespace for the AIDA detector description toolkit.
	DD4hep::Simulation
	Namespace for the Geant4 based simulation part of the AIDA detector description toolkit.
	EventSeed
	Set the event seed for each event.

Macros
#define	hashsize(n)   ( 1U << (n) )
#define	hashmask(n)   ( hashsize ( n ) - 1 )
#define	mix(a, b, c)

Functions
unsigned	DD4hep::Simulation::jenkins_hash (unsigned char *k, unsigned length, unsigned initval)
unsigned int	DD4hep::Simulation::hash (unsigned int initialSeed, unsigned int eventNumber, unsigned int runNumber)
	calculate hash from initialSeed, eventID and runID More...

Macro Definition Documentation

#define hashmask

(

n

)

( hashsize ( n ) - 1 )

Definition at line 71 of file Geant4EventSeed.h.

#define hashsize

(

n

)

( 1U << (n) )

Definition at line 70 of file Geant4EventSeed.h.

#define mix	(		a,
			b,
			c
	)

Value:

{                                           \
      a -= b; a -= c; a ^= (c>>13);             \
      b -= c; b -= a; b ^= (a<<8);              \
      c -= a; c -= b; c ^= (b>>13);             \
      a -= b; a -= c; a ^= (c>>12);             \
      b -= c; b -= a; b ^= (a<<16);             \
      c -= a; c -= b; c ^= (b>>5);              \
      a -= b; a -= c; a ^= (c>>3);              \
      b -= c; b -= a; b ^= (a<<10);             \
      c -= a; c -= b; c ^= (b>>15);             \
    }

Definition at line 100 of file Geant4EventSeed.h.

Referenced by DD4hep::Simulation::Geant4Converter::handleMaterial(), and DD4hep::Simulation::jenkins_hash().