Changeset 14029 for trunk/Mars/mfileio

Timestamp:

06/01/12 18:25:47 (12 years ago)

Author:

tbretz

Message:

Fixed a problem with root 5.32 and no-tree tasks (like in WriteMC)

File:

• trunk/Mars/mfileio/MWriteRootFile.cc (modified) (2 diffs)

trunk/Mars/mfileio/MWriteRootFile.cc

@@ -690 +690 @@
 Bool_t MWriteRootFile::CheckAndWrite()
 {
+    // This is the special case if we only copy a tre but do not
+    // write containers to it
+    const Int_t n = fTrees.GetEntriesFast();
+    if (n==0)
+        return kTRUE;
+
     TObject *obj;
 
@@ -725 +731 @@
     // Loop over all tree entries
     //
-    const Int_t n = fTrees.GetEntriesFast();
-
     for (int idx=0; idx<n; idx++)
     {