Re: [Boost-bugs] [Boost C++ Libraries] #8088: Limited Forward Compatibility

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #8088: Limited Forward Compatibility
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2017-11-27 10:56:08

#8088: Limited Forward Compatibility
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  Reporter:  Dmitry Shesterkin <dfb@…>  |      Owner:  Robert Ramey
      Type:  Patches                    |     Status:  new
 Milestone:  To Be Determined           |  Component:  serialization
   Version:  Boost 1.52.0               |   Severity:  Problem
Resolution:                             |   Keywords:  Forward
                                        |  Compatibility
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Comment (by sena@…):

 Replying to [comment:6 Paresh Varshney <pareshvarshney@…>]:
 > Does boost supports (if this made it to actual boost code) this for
 binary archives?

 This will not be possible without 2 significant modifications:

 1. Store the name of the field in binary_oarchive, like it is done in
 xml_oarchive. This way binary_iarchive will be able to identify new
 fields.
 2. Store the size of the field in binary_oarchive, this way
 binary_iarchive will know how many bytes it should skip.

 I created experimental archive which supports forward compatibility. It
 stores output in boost::property_tree::ptree, which can be serialized to
 json. Here is the link https://github.com/sena73/ptree_archive

-- 
Ticket URL: <https://svn.boost.org/trac10/boost/ticket/8088#comment:7>
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