Hi, I am trying to save a TMap object in to a TFile. I want overwrite the existing object in the file and I also want the map to be saved as a single key. In the Object::Write(), I found: // The option can be a combination of: // kSingleKey and kOverwrite // Using the kOverwrite option a previous key with the same name is // overwritten. // The kSingleKey option is only used by TCollection::Write() to write // a container with a single key instead of each object in the container // with its own key. My question is how to combine these two options? Should I try myMap->Write("myMap", TObject::kOverwrite && TObject::kSingleKey) ? Thanks! Aihong
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