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<title>auto as_failure() &amp;&amp; - Boost.Outcome documentation</title>
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  <div class="titlepage"><div><div><h1 style="clear: both"><code>auto as_failure() &amp;&amp;</code></h1></div></div></div>
  <p>Return the output from free function <a href="../../../reference/functions/failure.html" class="api-reference"><code>auto failure(T &amp;&amp;, ...)</code></a>
 containing a move from any errored state, thus leaving the result&rsquo;s error value in a moved-from state. Depending on the choice of <code>error_type</code>, this function may therefore be destructive. The error state is accessed using <a href="../../../reference/types/basic_outcome/assume_error_rvalue.html" class="api-reference"><code>error_type &amp;&amp;assume_error() &amp;&amp; noexcept</code></a>
.</p>

<p><em>Requires</em>: Always available.</p>

<p><em>Complexity</em>: Whatever that of <code>error_type</code>&rsquo;s move constructor is.</p>

<p><em>Guarantees</em>: None.</p>


        </div><p><small>Last revised: January 24, 2019 at 01:15:16 UTC</small></p>
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