+lmm_constraint_t lmm_get_cnst_from_var(lmm_system_t sys, lmm_variable_t var, int num)
+{
+ if(num<var->cnsts_number) return(var->cnsts[num].constraint);
+ else return NULL;
+}
+
+int lmm_get_number_of_cnst_from_var(lmm_system_t sys, lmm_variable_t var)
+{
+ return(var->cnsts_number);
+}
+
+lmm_variable_t lmm_get_var_from_cnst(lmm_system_t sys, lmm_constraint_t cnst,
+ lmm_variable_t *var)
+{
+ if(!(*var)) xbt_swag_getFirst(&(cnst->element_set));
+ else *var=xbt_swag_getNext(*var,cnst->element_set.offset);
+ return *var;
+}
+
+void *lmm_constraint_id(lmm_constraint_t cnst)
+{
+ return cnst->id;
+}
+
+void *lmm_variable_id(lmm_variable_t var)
+{
+ return var->id;
+}
+
+static void saturated_constraint_set_update(lmm_system_t sys,