*
* Use the \ref gras_userdata_new macro to create a new user data (or malloc it
* and use \ref gras_userdata_set yourself), and \ref gras_userdata_get to
- * retrieve a reference to it.
+ * retrieve a reference to it.
+ *
+ *
+ * For more info on this, you may want to check the relevant lesson of the GRAS tutorial:
+ * \ref GRAS_tut_tour_globals
*/
/* @{ */
* \brief Set the data associated with the current process.
* \ingroup GRAS_globals
*/
-XBT_PUBLIC(void) gras_userdata_set(void *ud);
+XBT_PUBLIC(void*) gras_userdata_set(void *ud);
-/** \brief Malloc and set the data associated with the current process. */
-#define gras_userdata_new(type) (gras_userdata_set(xbt_new0(type,1)),gras_userdata_get())
+/** \brief Malloc and set the data associated with the current process.
+ *
+ * @warnug gras_userdata_new() expects the pointed type, not the
+ * pointer type. We know it'a a bit troublesome, but it seems like
+ * the only solution since this macro has to compute the size to
+ * malloc and should thus know the pointed type.
+ *
+ * You'll find an example in the tutorial: \ref GRAS_tut_tour_globals
+ */
+#define gras_userdata_new(type) ((type*)gras_userdata_set(xbt_new0(type,1)))
/* @} */
SG_END_DECL()