Broadcast Boost.JSON objects

[Arsennnic]

Hi, I wonder how to broadcast Boost.JSON objects with Boost.MPI library. I tried

#include <boost/json.hpp>
#include <boost/mpi/collectives.hpp>
#include <boost/mpi/communicator.hpp>
#include <boost/mpi/environment.hpp>

int main( int argc, char* argv[] )
{
    boost::mpi::environment env( argc, argv );
    boost::mpi::communicator world;
    boost::json::object json;
    boost::mpi::broadcast( world, json, 0 );
    return 0;
}

and got the error 'class boost::json::object' has no member named 'serialize'.

I guess I missed some headers like <boost/serialization/string.hpp> or <boost/serialization/vector.hpp>, but I don't know which ones should be included.

[aminiussi]

Sorry for the delay.

There is nothing done specificaly for json trees. It's considered a user type and as such requires it's own serialisation implementation as described in
https://www.boost.org/doc/libs/1_85_0/doc/html/mpi/tutorial.html#mpi.tutorial.user_data_types

Regards