#include <iostream>
#include <boost/mpi.hpp>

struct custom_type {
    template<class Archive>
    void serialize(Archive& ar, const unsigned int version) {}
};

int main() {
    boost::mpi::environment env;
    boost::mpi::communicator comm;
    
    if (comm.rank() == 0) {
        comm.send(1,0,42);
        comm.send(1,0,custom_type());
    }
    else {
        {
            int i;
            auto req = comm.irecv(0,0,i);
            req.wait();
            std::cout << "Did we receive the built in type message: " << bool(req.test()) << std::endl;
        }
        
        {
            custom_type c;
            auto req = comm.irecv(0,0,c);
            req.wait();
            std::cout << "Did we receive the custom type message: " << bool(req.test()) << std::endl;
        }
    }
    
    return 0;
}