xception_check(Impl &amp;&amp;) noexcept</code></a>
<p>Observer policy performing hard UB if no exception is present. Constexpr, never throws.</p><li>
	<a href="../reference/policies/base/on_outcome_construction.html" ><code>static void on_outcome_construction(T *, U &amp;&amp;) noexcept</code></a>
<p>(&gt;= Outcome v2.2.0) Hook invoked by the implicit constructors of <code>basic_outcome</code>.</p><li>
	<a href="../reference/policies/base/on_outcome_construction2.html" ><code>static void on_outcome_constru