Retrieving the traversed range

[Manfred_Nowak]

Peter Alexander wrote:

> That would be all well and good if inPlaceSplit actually existed :)

In your OP you wrote:
> but Until is (correctly) not bidirectional

I recognize at least a misunderstanding in this sentence, because every 
bidirectionalRange _is_ an inputRange. Therefore `Until!' _should_ work on 
every bidirectionalRange.

If you are right, then there must be something wrong with the 
implementation. And i was upset to see
  assert( isInputRange!( int[])) // ok
  typedef int[] T;
  assert( isInputRange!( T))     // isInputRange!(T) is false

-manfred