ef</span> <span class="identifier">policy</span><span class="special">&lt;</span><span class="identifier">domain_error</span><span class="special">&lt;</span><span class="identifier">ignore_error</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">ignore_domain_policy</span><span class="special">;</span>
<span class="comment">// find_scale with new policy, using typedef.</span>
<span class="identifier">l</span> <span class="special">=</span> <span class="identi