+
+int isl_set_scan(__isl_take isl_set *set, struct isl_scan_callback *callback)
+{
+ int i;
+
+ if (!set || !callback)
+ goto error;
+
+ set = isl_set_cow(set);
+ set = isl_set_make_disjoint(set);
+ set = isl_set_compute_divs(set);
+ if (!set)
+ goto error;
+
+ for (i = 0; i < set->n; ++i)
+ if (isl_basic_set_scan(isl_basic_set_copy(set->p[i]),
+ callback) < 0)
+ goto error;
+
+ isl_set_free(set);
+ return 0;
+error:
+ isl_set_free(set);
+ return -1;
+}
+
+int isl_basic_set_count_upto(__isl_keep isl_basic_set *bset,
+ isl_int max, isl_int *count)
+{
+ struct isl_counter cnt = { { &increment_counter } };
+
+ if (!bset)
+ return -1;
+
+ isl_int_init(cnt.count);
+ isl_int_init(cnt.max);
+
+ isl_int_set_si(cnt.count, 0);
+ isl_int_set(cnt.max, max);
+ if (isl_basic_set_scan(isl_basic_set_copy(bset), &cnt.callback) < 0 &&
+ isl_int_lt(cnt.count, cnt.max))
+ goto error;
+
+ isl_int_set(*count, cnt.count);
+ isl_int_clear(cnt.max);
+ isl_int_clear(cnt.count);
+
+ return 0;
+error:
+ isl_int_clear(cnt.count);
+ return -1;
+}
+
+int isl_set_count_upto(__isl_keep isl_set *set, isl_int max, isl_int *count)
+{
+ struct isl_counter cnt = { { &increment_counter } };
+
+ if (!set)
+ return -1;
+
+ isl_int_init(cnt.count);
+ isl_int_init(cnt.max);
+
+ isl_int_set_si(cnt.count, 0);
+ isl_int_set(cnt.max, max);
+ if (isl_set_scan(isl_set_copy(set), &cnt.callback) < 0 &&
+ isl_int_lt(cnt.count, cnt.max))
+ goto error;
+
+ isl_int_set(*count, cnt.count);
+ isl_int_clear(cnt.max);
+ isl_int_clear(cnt.count);
+
+ return 0;
+error:
+ isl_int_clear(cnt.count);
+ return -1;
+}
+
+int isl_set_count(__isl_keep isl_set *set, isl_int *count)
+{
+ if (!set)
+ return -1;
+ return isl_set_count_upto(set, set->ctx->zero, count);
+}