def sized

bend-collections-laws-crypto@1.0.0.0 · src/crypto/keccak/keccak.bend:334

import Base

334def sized(+round_count: Nat,+length: Nat, pair: Array<U32> & U32) -> Maybe<&1,Array<U32>>:
335  (a,capacity) = pair
336  checked(round_count,Nat.is_le(length,Nat.mul(4n,U32.to_nat(capacity))),a,length)