boost::mpi::is_mpi_byte_datatype — Type trait that determines if there exists a built-in byte MPI data type for a given C++ type.
template<typename T> struct is_mpi_byte_datatype { };
This ytpe trait determines when there is a direct mapping from a C++ type to an MPI data type that is classified as an byte data type. See is_mpi_builtin_datatype for general information about built-in MPI data types.
is_mpi_builtin_datatype