Float_t EtaToTheta(Float_t arg);
void GetFinalDecayProducts(Int_t ind, AliStack & stack , TArrayI & ar);
-void fastGen(Int_t nev = 1, char* filename = "galice.root")
+void fastGen(Int_t nev = 1, const char* filename = "galice.root")
{
AliPDG::AddParticlesToPdgDataBase();
TDatabasePDG::Instance();