__isl_give isl_qpolynomial *isl_qpolynomial_scale(
__isl_take isl_qpolynomial *qp, isl_int v);
+ __isl_give isl_qpolynomial *isl_qpolynomial_scale_val(
+ __isl_take isl_qpolynomial *qp,
+ __isl_take isl_val *v);
__isl_give isl_qpolynomial *isl_qpolynomial_neg(
__isl_take isl_qpolynomial *qp);
__isl_give isl_qpolynomial *isl_qpolynomial_add(
__isl_take isl_qpolynomial *qp, isl_int v);
__isl_give isl_qpolynomial *isl_qpolynomial_scale(
__isl_take isl_qpolynomial *qp, isl_int v);
+__isl_give isl_qpolynomial *isl_qpolynomial_scale_val(
+ __isl_take isl_qpolynomial *qp, __isl_take isl_val *v);
__isl_give isl_qpolynomial *isl_qpolynomial_insert_dims(
__isl_take isl_qpolynomial *qp, enum isl_dim_type type,
return NULL;
}
+/* Multiply the constant polynomial "up" by "v".
+ */
+static __isl_give struct isl_upoly *isl_upoly_cst_scale_val(
+ __isl_take struct isl_upoly *up, __isl_keep isl_val *v)
+{
+ struct isl_upoly_cst *cst;
+
+ if (isl_upoly_is_zero(up))
+ return up;
+
+ up = isl_upoly_cow(up);
+ if (!up)
+ return NULL;
+
+ cst = isl_upoly_as_cst(up);
+
+ isl_int_mul(cst->n, cst->n, v->n);
+ isl_int_mul(cst->d, cst->d, v->d);
+ isl_upoly_cst_reduce(cst);
+
+ return up;
+}
+
+/* Multiply the polynomial "up" by "v".
+ */
+static __isl_give struct isl_upoly *isl_upoly_scale_val(
+ __isl_take struct isl_upoly *up, __isl_keep isl_val *v)
+{
+ int i;
+ struct isl_upoly_rec *rec;
+
+ if (!up)
+ return NULL;
+
+ if (isl_upoly_is_cst(up))
+ return isl_upoly_cst_scale_val(up, v);
+
+ up = isl_upoly_cow(up);
+ rec = isl_upoly_as_rec(up);
+ if (!rec)
+ goto error;
+
+ for (i = 0; i < rec->n; ++i) {
+ rec->p[i] = isl_upoly_scale_val(rec->p[i], v);
+ if (!rec->p[i])
+ goto error;
+ }
+
+ return up;
+error:
+ isl_upoly_free(up);
+ return NULL;
+}
+
__isl_give struct isl_upoly *isl_upoly_mul_cst(__isl_take struct isl_upoly *up1,
__isl_take struct isl_upoly *up2)
{
return isl_qpolynomial_mul_isl_int(qp, v);
}
+/* Multiply "qp" by "v".
+ */
+__isl_give isl_qpolynomial *isl_qpolynomial_scale_val(
+ __isl_take isl_qpolynomial *qp, __isl_take isl_val *v)
+{
+ if (!qp || !v)
+ goto error;
+
+ if (!isl_val_is_rat(v))
+ isl_die(isl_qpolynomial_get_ctx(qp), isl_error_invalid,
+ "expecting rational factor", goto error);
+
+ if (isl_val_is_one(v)) {
+ isl_val_free(v);
+ return qp;
+ }
+
+ if (isl_val_is_zero(v)) {
+ isl_space *space;
+
+ space = isl_qpolynomial_get_domain_space(qp);
+ isl_qpolynomial_free(qp);
+ isl_val_free(v);
+ return isl_qpolynomial_zero_on_domain(space);
+ }
+
+ qp = isl_qpolynomial_cow(qp);
+ if (!qp)
+ goto error;
+
+ qp->upoly = isl_upoly_scale_val(qp->upoly, v);
+ if (!qp->upoly)
+ qp = isl_qpolynomial_free(qp);
+
+ isl_val_free(v);
+ return qp;
+error:
+ isl_val_free(v);
+ isl_qpolynomial_free(qp);
+ return NULL;
+}
+
__isl_give isl_qpolynomial *isl_qpolynomial_mul(__isl_take isl_qpolynomial *qp1,
__isl_take isl_qpolynomial *qp2)
{