Andrei Alexandrescu:
Yah,
There are 3 problems:
- In a successive post I have also added a template constraint,
so Range is an InputRange.
- firstDistinct() packs two behaviours that are better kept
separated, it's like a takeDistinct. It's better to remove the
final take, and return all distinct items. If a user wants the
first ones, he/she/shi will add a take after it. This is why
later in this thread we have used distinct(). In very few cases
I'd like some extra functions in Phobos like flatMap and amap,
because they are very common operations. But in most cases it's
better to keep only the simplest algorithms (like distinct and
take), so you can combine them in many different ways.
- Successive posts have shown that the code doesn't work. After
several tests I have opened this:
http://d.puremagic.com/issues/show_bug.cgi?id=9674 Please take a
look at it.
- I have recently written a little D program, about something
else, that I think you will appreciate even more than that
firstDistinct/distinct :-)
Bye,
bearophile
