Ákos Maróy
How does this compare to the binary archive that's in the boost repository?
It's an implementation of portable binary archive, while the think you can find in boost repository is just an example of how one could try to implement portable binary archive, therefore it's incomplete.
there it has the following files:
portable_binary_archive.hpp
This one contains shared code for iarchive and oarchive.
portable_binary_iarchive.cpp portable_binary_iarchive.hpp
It's an implementation of iarchive.
portable_binary_oarchive.cpp portable_binary_oarchive.hpp
It's an implementation of oarchive.
while yours is merely two header files:
portable_binary_iarchive.hpp portable_binary_oarchive.hpp
Well, they are not mine :) There is no need for cpp files because implementation is inline. Also they don't use anything like portable_binary_archive.hpp, but it's an implementation detail anyway.
are these complete replacements for the above?
Yes. Roman Perepelitsa.