lass=identifier>text</span><span class=special>.</span><span class=identifier>front</span><span class=special>(), </span><span class=string>&quot;A&quot; </span><span class=special>);</span>
<span class=special>}


</span>
<span class=preprocessor>#include </span><span class=special>&lt;</span><span class=identifier>boost</span><span class=special>/</span><span class=identifier>test</span><span class=special>/</span><span class=identifier>included</span><span class=special>/</span><span class=identifier>uni