[Boost-users] [Serialization] Postpone saving

Hi, I'm working with the Serialization library and in detail with the xml archives. In my code I have to serialize a lot of classes and I wish to save in the xml file only when I've done with the serialization of all clasess, also I would like to have more control when the Serialization saves the file (do it raise exceptions when it save files? Which ones?). As far as I read from the tutorials when I use the operator<< in the xml_archive it save directly to the files. In my test I've seen that the archive have no problem to save many classes to the same archive however as I've wrote I would like to have more control (at least to know which errors appear during writing). Is it possible? Thank you for your time.