def exists

bend-collections@1.0.0.0 · src/containers/internal/intrusive_list.bend:228

import Base
import bend-collections@1.0.0.0/src/containers/types/intrusive_doubly_linked_list.bend as E

228def exists(~S: Type, ~N: Data, ~V: Data, ~C: Data, ~H: Data, ~get_head: S -> H -> S & Maybe<&2, N>, ~next: S -> N -> S & Maybe<&2, N>, ~value: S -> N -> S & V, ~pred: S -> C -> V -> S & Bool, +fuel: Nat, s: S, +h: H, +c: C) -> S & Result<&2, &1, E.Error, Bool>:
229  search_bool(~S, ~N, False{}, find(~S, ~N, ~V, ~C, ~H, ~get_head, ~next, ~value, ~pred, fuel, s, h, c))