Histogram.col.go: def of bend-parallel@0.1.0.0
Import: import bend-parallel@0.1.0.0/histogram.bend as Histogram
Lines 170-180 of bend-parallel@0.1.0.0/histogram.bend: https://jend.leeeet.dev/read.txt?path=bend-parallel@0.1.0.0/histogram.bend&start_line=170&end_line=180

import Base

# r holds the table and the entry x read at at: adds x and the n entries
# after it, each step further on, to s.
def col.go(+n: Nat, +at: U32, +step: U32, +s: U32, r: Array<U32> & U32) -> Array<U32> & U32:
  match n:
    case 0n:
      (t, +x) = r
      (t, (s + x : U32))
    case 1n+p:
      (t, +x) = r
      +q = (at + step : U32)
      col.go(p, q, step, (s + x : U32), t[q])

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Array.get
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Pair
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Sigma
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=U32.add