//: Calls can also generate products, using 'reply'.

:(scenario reply)
recipe main [
  1:number, 2:number <- f 34
]
recipe f [
  12:number <- next-ingredient
  13:number <- add 1, 12:number
  reply 12:number, 13:number
]
+mem: storing 34 in location 1
+mem: storing 35 in location 2

:(before "End Primitive Recipe Declarations")
REPLY,
:(before "End Primitive Recipe Numbers")
Recipe_ordinal["reply"pre { line-height: 125%; }
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scenario array-from-args [
  run [
    1:address:array:location <- new-array 0, 1, 2
    2:array:location <- copy *1:address:array:location
  ]
  memory-should-contain [
    2 <- 3  # array length
    3 <- 0
    4 <- 1
    5 <- 2
  ]
]

# create an array out of a list of scalar args
recipe new-array [
  local-scope
  capacity:number <- copy 0
  {
    # while read curr-value
    curr-value:location, exists?:boolean <- next-ingredient
    break-unless exists?
    capacity <- add capacity, 1
    loop
  }
  result:address:array:location <- new location:type, capacity
  rewind-ingredients
  i:number <- copy 0
  {
    # while read curr-value
    done?:boolean <- greater-or-equal i, capacity
    break-if done?
    curr-value:location, exists?:boolean <- next-ingredient
    assert exists?, [error in rewinding ingredients to new-array]
    tmp:address:location <- index-address *result, i
    *tmp <- copy curr-value
    i <- add i, 1
    loop
  }
  reply result
]