[Boost-users] [serialization] Seek in a binary archive

Hi, I save fixed size objects in a binary archive and when I load the binary archive, I try to seek at a specific position. To do that I call istream.seekg() but the problem is that boost::serialization get the rdbuf of the input stream, so the seek does not work. I would like to know whether I have to create a class like basic_binary_iprimitive or whether there is a better alternative. Thanks,