ode> to
enable emulation. Use <a href="../../../reference/policies/base/on_outcome_copy_construction2.html" class="api-reference"><code>on_outcome_copy_construction(T *, U &amp;&amp;, V &amp;&amp;) noexcept</code></a>
 instead in new code.</p>

<p>One of the constructor hooks for <a href="../../../reference/types/basic_outcome.html" class="api-reference"><code>basic_outcome&lt;T, EC, EP, NoValuePolicy&gt;</code></a>
, generally invoked by the converting copy constructors of <code>basic_outcome</code> (NOT t