+SG_BEGIN_DECL()
+
+/** @addtogroup XBT_set
+ * @brief A data container consisting in \ref XBT_dict and \ref XBT_dynar
+ *
+ * <center><table><tr><td><b>Top</b> <td> [\ref index]::[\ref XBT_API]
+ * <tr><td><b>Prev</b> <td> [\ref XBT_dict]
+ * <tr><td><b>Next</b> <td> [\ref XBT_fifo]
+ * <tr><td><b>Down</b> <td> [\ref XBT_set_cons] </table></center>
+ *
+ * The elements stored in such a data structure can be retrieve both by
+ * name and by ID. For this to work, the first fields of the structures
+ * stored must begin with:
+ * \verbatim unsigned int ID;
+ char *name;
+ unsigned int name_len;\endverbatim
+ *
+ * It is impossible to remove an element from such a data structure.
+ *
+ * @todo
+ * Such a datastructure was necessary/useful to store the GRAS type
+ * descriptions, but it should be reworked to become generic.
+ *
+ */
+
+
+/** @defgroup XBT_set_cons Set and set elements, constructor/destructor
+ * @ingroup XBT_set
+ *
+ * <center><table><tr><td><b>Top</b> <td> [\ref index]::[\ref XBT_API]::[\ref XBT_set]
+ * <tr><td> Prev <td>
+ * <tr><td><b>Next</b> <td> [\ref XBT_set_basic] </table></center>
+ *
+ * @{
+ */
+/** \brief Opaque type representing a set */
+typedef struct xbt_set_ *xbt_set_t;
+/** \brief It must be possible to cast set elements to this type */
+struct xbt_set_elm_ {
+ unsigned int ID; /**< Identificator (system assigned) */
+ char *name; /**< Name (user assigned) */
+ unsigned int name_len;/**< Length of the name */
+};