Here, while the Ruby versions return the value directly, the SWIG -versions do not, but return a status value to indicate success (SWIG_OK). While more akward to use, this allows you to write typemaps that report more helpful error messages, like:
+versions do not, but return a status value to indicate success (SWIG_OK). While more awkward to use, this allows you to write typemaps that report more helpful error messages, like: