[boost] [serialization] using boost::serialization::collection_size_type and backwards compatibility

Subject: [boost] [serialization] using boost::serialization::collection_size_type and backwards compatibility
From: joaquin_at_[hidden]
Date: 2009-09-02 02:15:09

An observant colleague has noticed that Boost.MultiIndex serialization
uses std::size_type instead of the adviced 
boost::serialization::collection_size_type:

https://svn.boost.org/trac/boost/ticket/3365

My question is: if I just change std::size_type with
boost::serialization::collection_size_type in Boost.MultiIndex 
serialization code,
will backwards compatibility be preserved, i.e. will users be able to load
archives saved with the old std::size_type variant? If not, what's the 
suggested
way to handle this issue?

Thank you,

Joaquín M López Muñoz
Telefónica, Investigación y Desarrollo