Super-dee-duper D features

[Frits van Bommel]

Andrei Alexandrescu (See Website For Email) wrote:
> Bill Baxter wrote:
>> Yeh, I don't get it either.  How would that help me implement merge() 
>> from merge sort for instance?
> 
> Merge bumps the iteration in both collections conditionally. The form 
> above bumps the iteration in the two collections unconditionally, until 
> one is finished; then it continues with the other until that is finished.

In other words, it doesn't :(.