pub unsafe extern "C" fn PMPI_Type_create_keyval(
type_copy_attr_fn: MPI_Type_copy_attr_function,
type_delete_attr_fn: MPI_Type_delete_attr_function,
type_keyval: *mut c_int,
extra_state: *mut c_void,
) -> c_int
pub unsafe extern "C" fn PMPI_Type_create_keyval(
type_copy_attr_fn: MPI_Type_copy_attr_function,
type_delete_attr_fn: MPI_Type_delete_attr_function,
type_keyval: *mut c_int,
extra_state: *mut c_void,
) -> c_int