ew, <span class="keyword">typename</span> = detail::requires_narrow_<span class="keywordtype">string</span>_container&lt;StringOrStringView&gt;&gt;</div><div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="namespaceboost_1_1nowide.html#acd45140e35eefe41074ae55457959eb6">  130</a></span>&#160;    <span class="keyword">inline</span> std::wstring <a class="code" href="namespaceboost_1_1nowide.html#ac19f38bffa0370b15ac63c0480b85351">widen</a>(<span class="keyword">const</span> Strin