\link ctfirfieldtypes CTF IR field type\endlink must be
<em>equivalent to</em> another one, it means that
bt_ctf_field_type_compare() \em must return 0.
\link ctfirfieldtypes CTF IR field type\endlink must be
<em>equivalent to</em> another one, it means that
bt_ctf_field_type_compare() \em must return 0.