-// Int_t nparticles,evnt;
-
- if(strstr(opt,"All")||strstr(opt,"ALL")||strstr(opt,"ITS")||opt==0){
+ Bool_t condition =kFALSE;
+ if(opt){
+ if(strstr(opt,"All")||strstr(opt,"ALL")||strstr(opt,"ITS"))condition =kTRUE;
+ }
+ else{
+ condition = kTRUE;
+ }
+ if(condition){