dcollections 1.0 and 2.0a beta released

[bearophile]

Andrei Alexandrescu:

> Keeping the length cached in a singly-linked list is a costly mistake.
> It works against splicing (an important list primitive) and most of the
> time you don't need it so why waste time updating it.

... LinkedList(T, bool WithLength=True) {
  static if(WithLength) {
    // defines  @attribute length here etc
  }
}
Inside the methods like the add there is another static if(WithLength) that enables/disables the code that updates the length.

This allows to keep the length by default, but makes it easy to remove it when desired.

Bye,
bearophile