+extern constraintList constraintList_sort (/*@returned@*/ constraintList p_ret)
+ /*@modifies p_ret@*/ ;
+
+extern void constraintList_castConstraints (constraintList p_c, ctype p_tfrom, ctype p_tto)
+ /*@modifies p_c@*/ ;
+
+extern void constraintList_dump (/*@observer@*/ constraintList p_c, FILE * p_f);