"lineno">   44</span>&#160;        <span class="keyword">struct </span>tmat4x4</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;        {</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;                <span class="keyword">typedef</span> tvec4&lt;T, P&gt; col_type;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;                <span class="keyword">typedef</span> tvec4&lt;T, P&gt; row_type;</div>
<di