<pre><code class="language-c">herr_t H5Tset_tag( hid_t dtype_id const char *tag )</code></pre>

<pre><code class="language-fortran">SUBROUTINE h5tset_tag_f(type_id, tag, hdferr) 
  IMPLICIT NONE
  INTEGER(HID_T), INTENT(IN) :: type_id ! Datatype identifier 
  CHARACTER(LEN=*), INTENT(IN) :: tag   ! Unique ASCII string with which the
                                        ! opaque datatype is to be tagged 
  INTEGER, INTENT(OUT) :: hdferr        ! Error code
END SUBROUTINE h5tset_tag_f</code></pre>