title: Index a character in a wchar_t array
body: <p>The thread "<a href="https://stackoverflow.com/questions/11503931/size-of-wchar-t-for-surrogate-pair-unicode-character-out-of-bmp-on-windows">Size of wchar_t* for surrogate pair</a>" shows, that the size of memory required to save a wchar_t value may differ as it can take more space to encode some characters (surrogate pair). That leads me to the following question: How do I then navigate along an array of wchar_t values? Because I can now not just increment or decrement the current address by a fixed size of wchar_t. </p>
  
  <p>CORRECTION: By "How do I then navigate along an array of wchar_t values" I meant how you navigate between the code points which may represented by a variable number of wchar_t values.</p>