int isl_vertices_foreach_disjoint_cell(__isl_keep isl_vertices *vertices,
int (*fn)(__isl_take isl_cell *cell, void *user), void *user);
int isl_vertices_foreach_disjoint_cell(__isl_keep isl_vertices *vertices,
int (*fn)(__isl_take isl_cell *cell, void *user), void *user);