span> write(std::ostream&amp; str) <span class="keyword">const</span>;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;};</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;std::ostream&amp; operator&lt;&lt;(std::ostream&amp; str, <span class="keyword">const</span> <a class="code" href="classhelib_1_1_key_switch.html">KeySwitch</a>&amp; matrix);</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;<span class