pan class="keyword">bool</span> <span class="keyword">operator</span><span class="special">!=</span><span class="special">(</span><span class="keyword">const</span> <a class="link" href="node_allocator.html" title="Class template node_allocator">node_allocator</a><span class="special">&lt;</span> <span class="identifier">T</span><span class="special">,</span> <span class="identifier">S</span><span class="special">,</span> <span class="identifier">NPC</span> <span class="special">&gt;</span> <span class="spe