mratsim · July 4, 2017 19:49
diff --git a/whilelet.nim b/whilelet.nim
 proc filter[T](it: (iterator : T), f: proc(x: T): bool): (iterator: T) =
  return iterator(): T =
    while (let x = it(); not finished(it)):
      if f(x):
        yield x
	proc filter[T](it: (iterator : T), f: proc(x: T): bool): (iterator: T) =
	return iterator(): T =
	while (let x = it(); not finished(it)):
	if f(x):
	yield x