entifier">mem</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">T</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span class="Identifier">discardable</span>.}</pre></dt>
  <dd>
    
    Atomically stores data into mem and r