t2x2&lt;T, P&gt; &amp; operator+=(tmat2x2&lt;U, P&gt; const &amp; m);</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;                template &lt;typename U&gt;</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;                GLM_FUNC_DECL tmat2x2&lt;T, P&gt; &amp; operator-=(U s);</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;                template &lt;typename U&gt;</div>
<div class="line"><a na