+ int modified;
+ int selective_update_active; /* flag to update partially the system only selecting changed portions */
+ unsigned visited_counter; /* used by lmm_update_modified_set */
+ s_xbt_swag_t variable_set; /* a list of lmm_variable_t */
+ s_xbt_swag_t constraint_set; /* a list of lmm_constraint_t */
+
+ s_xbt_swag_t active_constraint_set; /* a list of lmm_constraint_t */
+ s_xbt_swag_t modified_constraint_set; /* a list of modified lmm_constraint_t */
+
+ s_xbt_swag_t saturated_variable_set; /* a list of lmm_variable_t */
+ s_xbt_swag_t saturated_constraint_set; /* a list of lmm_constraint_t_t */
+
+ xbt_swag_t keep_track;
+
+ xbt_mallocator_t variable_mallocator;
+} s_lmm_system_t;
+
+#define extract_variable(sys) xbt_swag_extract(&(sys->variable_set))
+#define extract_constraint(sys) xbt_swag_extract(&(sys->constraint_set))
+#define insert_constraint(sys,cnst) xbt_swag_insert(cnst,&(sys->constraint_set))
+#define remove_variable(sys,var) do {xbt_swag_remove(var,&(sys->variable_set));\
+ xbt_swag_remove(var,&(sys->saturated_variable_set));} while(0)
+#define remove_constraint(sys,cnst) do {xbt_swag_remove(cnst,&(sys->constraint_set));\
+ xbt_swag_remove(cnst,&(sys->saturated_constraint_set));} while(0)
+#define make_constraint_active(sys,cnst) xbt_swag_insert(cnst,&(sys->active_constraint_set))
+#define make_constraint_inactive(sys,cnst) \
+ do { xbt_swag_remove(cnst, &sys->active_constraint_set); \
+ xbt_swag_remove(cnst, &sys->modified_constraint_set); } while (0)
+
+static void lmm_var_free(lmm_system_t sys, lmm_variable_t var);
+static XBT_INLINE void lmm_cnst_free(lmm_system_t sys,
+ lmm_constraint_t cnst);
+
+void lmm_print(lmm_system_t sys);
+
+extern double (*func_f_def) (lmm_variable_t, double);
+extern double (*func_fp_def) (lmm_variable_t, double);
+extern double (*func_fpi_def) (lmm_variable_t, double);
+
+#endif /* _SURF_MAXMIN_PRIVATE_H */