+=head2 Lists
+
+Lists are defined over several element types, including
+C<isl_basic_set> and C<isl_set>.
+Here we take lists of C<isl_set>s as an example.
+Lists can be created, copied and freed using the following functions.
+
+ #include <isl/list.h>
+ __isl_give isl_set_list *isl_set_list_alloc(
+ isl_ctx *ctx, int n);
+ __isl_give isl_set_list *isl_set_list_copy(
+ __isl_keep isl_set_list *list);
+ __isl_give isl_set_list *isl_set_list_add(
+ __isl_take isl_set_list *list,
+ __isl_take isl_set *el);
+ void isl_set_list_free(__isl_take isl_set_list *list);
+
+C<isl_set_list_alloc> creates an empty list with a capacity for
+C<n> elements.
+
+Lists can be inspected using the following functions.
+
+ #include <isl/list.h>
+ isl_ctx *isl_set_list_get_ctx(__isl_keep isl_set_list *list);
+ int isl_set_list_n_set(__isl_keep isl_set_list *list);
+ int isl_set_list_foreach(__isl_keep isl_set_list *list,
+ int (*fn)(__isl_take struct isl_set *el, void *user),
+ void *user);
+