title: where is rvalue stored in c?
body: <p>in C, i have this code piece:</p>
  
  <pre><code>int a;
  a = 10 + 5 - 3
  </code></pre>
  
  <p>I want to ask: where is (10+5-3) stored at? 
  (As far as I know, <code>a</code> is located on stack, how about <code>(10+5-3)</code>? How does this rvalue get calculated?)</p>