int isl_space_is_domain_internal(__isl_keep isl_space *space1,
__isl_keep isl_space *space2);
+int isl_space_is_range_internal(__isl_keep isl_space *space1,
+ __isl_keep isl_space *space2);
__isl_give isl_space *isl_space_as_set_space(__isl_take isl_space *dim);