__isl_keep isl_pw_qpolynomial *pwqp);
void isl_pw_qpolynomial_free(__isl_take isl_pw_qpolynomial *pwqp);
+int isl_pw_qpolynomial_is_zero(__isl_keep isl_pw_qpolynomial *pwqp);
+
__isl_give isl_dim *isl_pw_qpolynomial_get_dim(
__isl_keep isl_pw_qpolynomial *pwqp);
unsigned isl_pw_qpolynomial_dim(__isl_keep isl_pw_qpolynomial *pwqp,
__isl_give isl_pw_qpolynomial *isl_pw_qpolynomial_add_piece(
__isl_take isl_pw_qpolynomial *pwqp,
__isl_take isl_set *set, __isl_take isl_qpolynomial *qp);
-int isl_pw_qpolynomial_is_zero(__isl_keep isl_pw_qpolynomial *pwqp);
int isl_pw_qpolynomial_is_one(__isl_keep isl_pw_qpolynomial *pwqp);
__isl_give isl_qpolynomial_fold *isl_qpolynomial_fold_cow(