R>

</TABLE>

<P>
Note that <TT>tstrip_t</TT>, <TT>ttile_t</TT>, and <TT>tsize_t</TT>
are constrained to be
no more than 32-bit quantities by 32-bit fields they are stored
in in the TIFF image.  Likewise <TT>tsample_t</TT> is limited by the 16-bit
field used to store the <TT>SamplesPerPixel</TT> tag.  <TT>tdir_t</TT>
constrains
the maximum number of IFDs that may appear in an image and may
be an arbitrary size (without penalty).  <TT>ttag_t</TT> must be either
<TT>int</TT>, <TT>unsigned int</TT>, pointer, o