对MPI对象使用C ++ 11 move语义有多安全？

我们来看一个小例子：

#include <mpi.h>
#include <iostream>

int main() {
    MPI_Init(nullptr,nullptr);

    int rank;
    MPI_Comm_rank(MPI_COMM_WORLD,&rank);

    if (rank == 0) {
        // create info object and set a key value pair
        MPI_Info info;
        MPI_Info_create(&info);
        MPI_Info_set(info,"key","value");

        int size;
        MPI_Info_get_nkeys(info,&size);
        std::cout << "size: " << size << std::endl;

        // move into new object
        MPI_Info info2 = std::move(info);
        MPI_Info_set(info2,"kex2","value2");

        MPI_Info_get_nkeys(info2,&size);
        std::cout << "size: " << size << std::endl;
    }

    MPI_Finalize();
}

搬迁工程的安全性如何？即是在MPI对象上定义了这样的移动操作还是未定义的行为？