extern "C" {
//*$ create trackr.add
//*copy trackr
//* *
//*=== trackr ===========================================================*
//* *
//*----------------------------------------------------------------------*
//* *
//* tracks recording by alfredo ferrari, infn - milan *
//* *
//* last change 31 january 2001 by alfredo ferrari *
//* *
//* included in : *
//* electr *
//* emfsco *
//* kaskad (new version) *
//* kashea *
//* kasneu *
//* geoden (new version) *
//* mageas *
//* magmov *
//* magnew *
//* move *
//* photon *
//* usrsco *
//* *
//* ntrack = number of track segments *
//* mtrack = number of energy deposition events along the track *
//* 0 < i < ntrack *
//* xtrack = end x-point of the ith track segment *
//* ytrack = end y-point of the ith track segment *
//* ztrack = end z-point of the ith track segment *
//* 1 < i < ntrack *
//* ttrack = length of the ith track segment *
//* 1 < j < mtrack *
//* dtrack = energy deposition of the jth deposition event *
//* *
//* jtrack = identity number of the particle *
//* etrack = total energy of the particle *
//* ptrack = momentum of the particle (not always defined, if *
//* < 0 must be obtained from etrack) *
//* cx,y,ztrck = direction cosines of the current particle *
//* cx,y,ztrpl = polarization cosines of the current particle *
//* wtrack = weight of the particle *
//* wscrng = scoring weight: it can differ from wtrack if some *
//* biasing techniques are used (for example inelastic *
//* interaction length biasing) *
//* ctrack = total curved path *
//* zfftrk = of the particle *
//* zfrttk = actual z_eff of the particle *
//* atrack = age of the particle *
//* akshrt = kshrt amplitude for k0/k0bar *
//* aklong = klong amplitude for k0/k0bar *
//* wninou = neutron algebraic balance of interactions (both *
//* for "high" energy particles and "low" energy *
//* neutrons) *
//* spausr = user defined spare variables for the current *
//* particle *
//* sttrck = macroscopic total cross section for low energy *
//* neutron collisions *
//* satrck = macroscopic absorption cross section for low energy*
//* neutron collisions (it can be negative for pnab>1) *
//* ktrack = if > 0 neutron group of the particle (neutron) *
//* *
//* ntrack > 0, mtrack > 0 : energy loss distributed along the *
//* track *
//* ntrack > 0, mtrack = 0 : no energy loss along the track *
//* ntrack = 0, mtrack = 0 : local energy deposition (the *
//* value and the point are not re- *
//* corded in trackr) *
//* mmtrck = flag recording the material index for low energy *
//* neutron collisions *
//* lt1trk = initial lattice cell of the current track *
//* (or lattice cell for a point energy deposition) *
//* lt2trk = final lattice cell of the current track *
//* ihspnt = current geometry history pointer (not set if -1) *
//* ltrack = flag recording the generation number *
//* llouse = user defined flag for the current particle *
//* ispusr = user defined spare flags for the current particle *
//* lfsssc = logical flag for inelastic interactions ending with*
//* fission (used also for low energy neutrons) *
//* *
//*----------------------------------------------------------------------*
//* *
const Int_t mxtrck = 2500;
typedef struct {
Double_t xtrack[mxtrck+1];
Double_t ytrack[mxtrck+1];
Double_t ztrack[mxtrck+1];
Double_t ttrack[mxtrck];
Double_t dtrack[mxtrck];
Double_t etrack;
Double_t ptrack;
Double_t cxtrck;
Double_t cytrck;
Double_t cztrck;
Double_t wtrack;
Double_t cxtrpl;
Double_t cytrpl;
Double_t cztrpl;
Double_t zfftrk;
Double_t zfrttk;
Double_t atrack;
Double_t ctrack;
Double_t akshrt;
Double_t aklong;
Double_t wscrng;
Double_t wninou;
Double_t spausr[mkbmx1];
Double_t sttrck;
Double_t satrck;
Int_t ntrack;
Int_t mtrack;
Int_t jtrack;
Int_t ktrack;
Int_t mmtrck;
Int_t lt1trk;
Int_t lt2trk;
Int_t ihspnt;
Int_t ltrack;
Int_t llouse;
Int_t ispusr[mkbmx2];
Int_t lfsssc;
Int_t lpkill;
} trackrCommon;
#define TRACKR COMMON_BLOCK(TRACKR,trackr)
COMMON_BLOCK_DEF(trackrCommon,TRACKR);
//static union { Double_t spause; Double_t spausr[0];};
//static union { Int_t ispuse; Int_t ispusr[0];};
}