      <span class="phrase"><a name="json.allocators.storage_ptr.null_resource"></a></span><a class="link" href="storage_ptr.html#json.allocators.storage_ptr.null_resource">Null
        Resource</a>
      </h5>
<p>
        The function <a class="link" href="../ref/boost__json__get_null_resource.html" title="get_null_resource"><code class="computeroutput"><span class="identifier">get_null_resource</span></code></a> returns a global
        instance of the null resource. This resource offers a simple invariant