Scan.ex.go: def of bend-parallel@0.1.0.0
Import: import bend-parallel@0.1.0.0/scan.bend as Scan
Lines 51-62 of bend-parallel@0.1.0.0/scan.bend: https://jend.leeeet.dev/read.txt?path=bend-parallel@0.1.0.0/scan.bend&start_line=51&end_line=62

import Base

# r holds the array and the entry x read at j: a[j] becomes s, the sum
# before it, and so on for the n entries after it. Returns the array and
# the running sum past the last entry.
def ex.go(+n: Nat, +j: U32, +s: U32, r: Array<U32> & U32) -> Array<U32> & U32:
  match n:
    case 0n:
      (a, +x) = r
      (a[j] <- s, (s + x : U32))
    case 1n+p:
      (a, +x) = r
      +q = (j + 1 : U32)
      ex.go(p, q, (s + x : U32), (a[j] <- s)[q])

Uses (8):
  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=Array.set
  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