On Thursday, 17 July 2014 at 22:06:01 UTC, Brad Anderson wrote:
I agreed with this for awhile but following the conversation
here
<https://github.com/D-Programming-Language/phobos/pull/2149>
I'm more inclined to think we should be adding lazy versions of
functions where possible rather than versions with OutputRange
parameters. It's more flexible that way and can result in even
fewer allocations than even OutputRange parameters would have
(i.e. you can have chains of lazy operations and only allocate
on the final step, or not at all in some cases).
Laziness isn't appropriate or possible everywhere but it's much
easier to go from lazy to eager than the other way around.
[...]
This is not comparable. Lazy input range based solutions do not
make it possible to change allocation strategy, they simply defer
the allocation point. Ideally both are needed.
