title: Is the behavior of return x++; defined?
body: <p>If I have for example a class with instance method and variables</p>
  
  <pre><code>class Foo
  {
  
     ...
  
     int x;
     int bar() { return x++; }
   };
  </code></pre>
  
  <p>Is the behavior of returning a post-incremented variable defined?</p>