set and not void&gt;&lt;error_type if set and not void&gt;
</code></pre>

<p><em>Overridable</em>: Not overridable.</p>

<p><em>Requires</em>: That <code>operator&gt;&gt;</code> is a valid expression for <code>std::istream</code> and <code>T</code> and <code>E</code>.</p>

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

<p><em>Header</em>: <code>&lt;boost/outcome/iostream_support.hpp&gt;</code> (must be explicitly included manually).</p>


        </div><p><small>Last revised: March 03, 