ype="1">
<li class="listitem">
<pre class="literallayout"><span class="keyword">explicit</span> <a name="idp41342768-bb"></a><span class="identifier">output_test_stream</span><span class="special">(</span><span class="identifier">const_string</span> pattern_file_name <span class="special">=</span> <span class="identifier">const_string</span><span class="special">(</span><span class="special">)</span><span class="special">,</span> 
                            <span class="keyword">bool</span> match_or_save <