HDF5:multiple read on individual dataset returning 0 fixed

src/snapshotgadgeth5.cc

@@ -460,6 +460,8 @@ bool CSnapshotGadgetH5In<T>::loadDataset(std::string dataset, std::vector<U> &da
       }
       ok = false;
     }
+  } else {
+    ok=true;
   }
   return ok;
 }

test_src/uns_info.cc

@@ -91,7 +91,7 @@ template <class T> void displayInfo(bool display,int maxlines, std::string comp,
   //if (comp == "gas") {
   T * rho, * u, * hsml, * temp, * metal;
   ok = uns->snapshot->getData(comp,"rho" ,&nbody,&rho );
-  
+
   if (ok && display) {
     displayFormat(maxlines,"rho [1] = ",rho ,1,nbody, 3);
   }