1 files changed, 13 insertions, 1 deletions
diff --git a/tools/dataProvider.h b/tools/dataProvider.h
index 5a2f3e9..a8a5448 100644
--- a/tools/dataProvider.h
+++ b/tools/dataProvider.h
@@ -35,6 +35,14 @@ public:
             delete data[i];
         data.clear();
     }
+    static DataEntry* copyEntry(DataEntry* d)
+    {
+        DataEntry* dat = new DataEntry;
+        dat->rank = d->rank;
+        dat->qid = d->qid;
+        dat->feature = d->feature;
+        return dat;
+    }
     inline std::vector<DataEntry*>& getData(){
         return data;
     }
@@ -57,8 +65,12 @@ public:
         while (!EOFile())
         {
             getDataSet(buf);
-            out.getData().insert(out.getData().end(),buf.getData().begin(),buf.getData().end());
+            // won't work as data are discarded with every call to getDataSet
+            // out.getData().insert(out.getData().end(),buf.getData().begin(),buf.getData().end());
+            for (int i=0;i<buf.getSize();++i)
+                out.addEntry(out.copyEntry(buf.getData()[i]));
         }
+        out.setfSize(buf.getfSize());
     }
     virtual int getDataSet(DataList &out) = 0;
     virtual int open()=0;