template<class Archive> void load(Archive & ar, const CCSTRUCT& d, /* remove const here !!! */ unsigned int /* version */) { ar >> d.numRtp; }

Robert Ramey Diane wrote:

Is there a trick or known bug with serializing an unsigned int via the split free functions? I have a structure that contains an unsigned int, and if I serialize with the free serialize function it works as it should. However, if I split the serialization into save/load I get:

boost_1_36_0/boost/archive/detail/iserializer.hpp:541: error: conversion from `boost::serialization::is_wrapper<unsigned int>' to non-scalar type `mpl_::bool_< true>' requested

Here's my structure and the two pieces of serialization code:

typedef struct CCSTRUCT { unsigned int numRtp; } CCSTRUCT;

Serialization #1 (works):

template<class Archive> void serialize(Archive & ar, CCSTRUCT& it, const unsigned int version) { ar & it.numRtp; }

Serialization #2 (doesn't work):

BOOST_SERIALIZATION_SPLIT_FREE(CCSTRUCT)

template<class Archive> void save(Archive & ar, const CCSTRUCT& d, unsigned int /* version */) { ar << d.numRtp; }

template<class Archive> void load(Archive & ar, const CCSTRUCT& d, unsigned int /* version */) { ar >> d.numRtp; }

I need to split the serialization because there are other elements in the structure that can't be handled in serialize(), so I would really appreciate some help if anyone has any ideas.

Thanks, Diane