an> <span class="identifier">M</span><span class="special">&gt;</span>
<span class="keyword">constexpr</span> <span class="identifier">size_type</span>
<a class="link" href="rfind/overload2.html" title="basic_static_string::rfind (2 of 5 overloads)">rfind</a><span class="special">(</span>
    <span class="keyword">const</span> <span class="identifier">basic_static_string</span><span class="special">&lt;</span> <span class="identifier">M</span><span class="special">,</span> <span class="identifier">CharT</sp