Function mpi_sys::PMPI_Unpack_external

pub unsafe extern "C" fn PMPI_Unpack_external(
    datarep: *const c_char, 
    inbuf: *const c_void, 
    insize: MPI_Aint, 
    position: *mut MPI_Aint, 
    outbuf: *mut c_void, 
    outcount: c_int, 
    datatype: MPI_Datatype
) -> c_int