title: How to design a utility class?
body: <p>But I don't know if I should go for static methods, just a header, a class, or something else?</p>
  
  <p>What would be best practice? But, I don't want to have an instance of a utility class.</p>
  
  <p>I want to add functions like:</p>
  
  <pre><code>Uint32 MapRGB (int r, int g, int b);
  const char* CopyString(const char* char);
  // etc. You know: utility methods...
  </code></pre>