[Boost-users] tribool serialization

From: Austin Bingham (austin.bingham_at_[hidden])
Date: 2006-04-14 12:41:25

I've been trying to write serialization code for tribool, and I'm
completely dumbfounded at this point.   I'm using the "split free"
approach, but no matter how I phrase things, the compiler never seems
to believe that I've written code to de/serialize tribool. Here's an
example of what doesn't work:

   template <class Archive>
   void save(Archive& ar,
                  const boost::logic::tribool& b,
                  const unsigned int version)
   {
      // irrelevant
   }

   template <class Archive>
   void load(Archive& ar,
                 boost::logic::tribool& b,
                 const unsigned int version)
   {
      // irrelevant
   }

   BOOST_SERIALIZATION_SPLIT_FREE(boost::logic::tribool);

This *seems* correct, but the compiler complains that "tribool has no
member named serialize". While this is true, the split-free technique
means it won't be requested.

Our code uses the split-free approach for other classes, so I'm fairly
certain I know how to do it correctly. Is there something magical
about tribool that makes this approach break? More importantly, is
there a known way to de/serialize tribool? Thanks.

--
Austin Bingham
"If I were creating the world I wouldn't mess about
with butterflies and daffodils. I would have started
with lasers, eight o'clock, Day One!"
Evil