[Boost-users] [archive] binary archive to memory stream

Hello, I am wrapping my head around archive, specifically binary archive. I'd like to serialize a vector of objects in such a way, I need to capture intermediate vector buffers (literally, to vector of uint8_t) so that I can determine their sizes. After which point the parent object(s) can serialize to file using more conventional, built-in file streams and such. It seems that binary_oarchive is helpful, but still requires there be an ostream or streambuf in the mix. Which, as an adapter layer, while helpful, it still leaves the question of extending streambuf to work with ostream to vector open. I've read some docs on vectors and streambuf, but they all seem to be geared towards a known-size vector, istream and such. I am interested in a vector that can be streamed to, will grow in size, etc. Some clues seem to hint at underflow, overflow type issues? Any helpful pointers how to go about doing this? Thanks... Best regards, Michael Powell