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  <div class="titlepage"><div><div><h1 style="clear: both"><code>all_narrow</code></h1></div></div></div>
  <p>Policy class defining that hard undefined behaviour should occur on incorrect narrow and wide value, error or exception observation.</p>

<p>Inherits publicly from <a href="../../reference/policies/base.html" class="api-reference"><code>base</code></a>
, and simply defines its wide value, error and exception observer policies to call their corresponding narrow editions.</p>

<p>Included by <code>&lt;basic_result.hpp&gt;</code>, and so is always available when <code>basic_result</code> is available.</p>

<p><em>Requires</em>: Nothing.</p>

<p><em>Namespace</em>: <code>BOOST_OUTCOME_V2_NAMESPACE::policy</code></p>

<p><em>Header</em>: <code>&lt;boost/outcome/policy/all_narrow.hpp&gt;</code></p>


        </div><p><small>Last revised: January 22, 2019 at 01:11:40 UTC</small></p>
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