title: NSLog an object's memory address in overridden description method
body: <p>I am overriding an object's description method. I need to know how to print the object's memory address to replace <em>{???}</em> in the code below:</p>
  
  <pre><code>-(NSString *) description {
      return [NSString stringWithFormat:@"&lt;SomeClass: %@&gt;\nparmeterOne: %@\nparameterTwo: %@",
              {???}, self.parameterOne, self.paramterTwo];
  }
  </code></pre>
  
  <p>I want it to print in the console like this:</p>
  
  <pre><code>&lt;SomeClass: 0x4c05600&gt; parameterOne: 12 parameterTwo: sausages
  </code></pre>