title: this->member VS member in C++
body: <p>what is the difference between this:</p>
  
  <pre><code>int MyClass::getId() {
      return this-&gt;id;
  }
  </code></pre>
  
  <p>and this:</p>
  
  <pre><code>int MyClass::getId() {
      return id;
  }
  </code></pre>
  
  <p>in C++?</p>