added warning in SetElement (comment from P. Rosnet)

diff --git a/CORRFW/AliCFGridSparse.cxx b/CORRFW/AliCFGridSparse.cxx
index 4a4179ea69b05a03685f01769f3ef61e385ef946..695be2c86f40dfe0198a355dfbc1b90ef4bbd71e 100755 (executable)
--- a/CORRFW/AliCFGridSparse.cxx
+++ b/CORRFW/AliCFGridSparse.cxx
@@ -349,6 +349,8 @@ void AliCFGridSparse::SetElement(Int_t *bin, Float_t val)
   //
   // Sets grid element of bin indeces bin to val
   //
+  
+  AliWarning("Important: bins should be numbered from 1 to NBins");
   fData->SetBinContent(bin,val);
 }
 //____________________________________________________________________