CoreModel.bit_length: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/proofs/crypto/sha/packed/core_model.bend as CoreModel
Lines 157-159 of bend-collections@1.0.0.0/proofs/crypto/sha/packed/core_model.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/proofs/crypto/sha/packed/core_model.bend&start_line=157&end_line=159

import Base

def bit_length(+n: Nat) -> List<&2, U32>:
  length_octets(7n, Nat.div(n, 32n),
    [U32.shln(U32.from_nat(Nat.mod(n, 32n)), 3n)])

Uses (8):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.div
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mod
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.from_nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.shln
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/proofs/crypto/sha/packed/core_model.bend&name=length_octets