        <para>
          When extended by the
          <citerefentry><refentrytitle>cl_khr_fp16</refentrytitle></citerefentry> extension,
          the generic type <type>gentype<replaceable>n</replaceable></type> is extended to
          include <type>half</type>, <type>half2</type>, <type>half3</type>, <type>half4</type>,
          <type>half8</type>, and <type>half16</type>.
        </para>
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