Bitset.word_count: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/containers/bitset.bend as Bitset
Lines 102-108 of bend-collections@1.0.0.0/src/containers/bitset.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/containers/bitset.bend&start_line=102&end_line=108

import Base

# Number of set bits among the low m bits of w.
def word_count(m: Nat, +w: U32) -> Nat:
  match m:
    case 0n:
      0n
    case 1n+p:
      Nat.add(bit_value(low(w)), word_count(p, U32.shr(w)))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.shr
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/bitset.bend&name=bit_value
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/containers/bitset.bend&name=low