+
+/* Scale the first elements of "ma" by the corresponding elements of "vec".
+ */
+__isl_give isl_multi_aff *isl_multi_aff_scale_vec(__isl_take isl_multi_aff *ma,
+ __isl_take isl_vec *vec)
+{
+ int i, n;
+ isl_int v;
+
+ if (!ma || !vec)
+ goto error;
+
+ n = isl_multi_aff_dim(ma, isl_dim_out);
+ if (isl_vec_size(vec) < n)
+ n = isl_vec_size(vec);
+
+ isl_int_init(v);
+ for (i = 0; i < n; ++i) {
+ isl_aff *aff;
+
+ isl_vec_get_element(vec, i, &v);
+
+ aff = isl_multi_aff_get_aff(ma, i);
+ aff = isl_aff_scale(aff, v);
+ ma = isl_multi_aff_set_aff(ma, i, aff);
+ }
+ isl_int_clear(v);
+
+ isl_vec_free(vec);
+ return ma;
+error:
+ isl_vec_free(vec);
+ isl_multi_aff_free(ma);
+ return NULL;
+}
+
+/* Scale the first elements of "pma" by the corresponding elements of "vec".
+ */
+__isl_give isl_pw_multi_aff *isl_pw_multi_aff_scale_vec(
+ __isl_take isl_pw_multi_aff *pma, __isl_take isl_vec *v)
+{
+ int i;
+
+ pma = isl_pw_multi_aff_cow(pma);
+ if (!pma || !v)
+ goto error;
+
+ for (i = 0; i < pma->n; ++i) {
+ pma->p[i].maff = isl_multi_aff_scale_vec(pma->p[i].maff,
+ isl_vec_copy(v));
+ if (!pma->p[i].maff)
+ goto error;
+ }
+
+ isl_vec_free(v);
+ return pma;
+error:
+ isl_vec_free(v);
+ isl_pw_multi_aff_free(pma);
+ return NULL;
+}
+
+/* This function is called for each entry of an isl_union_pw_multi_aff.
+ * Replace the entry by the result of applying isl_pw_multi_aff_scale_vec
+ * to the original entry with the isl_vec in "user" as extra argument.
+ */
+static int union_pw_multi_aff_scale_vec_entry(void **entry, void *user)
+{
+ isl_pw_multi_aff **pma = (isl_pw_multi_aff **) entry;
+ isl_vec *v = user;
+
+ *pma = isl_pw_multi_aff_scale_vec(*pma, isl_vec_copy(v));
+ if (!*pma)
+ return -1;
+
+ return 0;
+}
+
+/* Scale the first elements of "upma" by the corresponding elements of "vec".
+ */
+__isl_give isl_union_pw_multi_aff *isl_union_pw_multi_aff_scale_vec(
+ __isl_take isl_union_pw_multi_aff *upma, __isl_take isl_vec *v)
+{
+ upma = isl_union_pw_multi_aff_cow(upma);
+ if (!upma || !v)
+ goto error;
+
+ if (isl_hash_table_foreach(upma->dim->ctx, &upma->table,
+ &union_pw_multi_aff_scale_vec_entry, v) < 0)
+ goto error;
+
+ isl_vec_free(v);
+ return upma;
+error:
+ isl_vec_free(v);
+ isl_union_pw_multi_aff_free(upma);
+ return NULL;
+}