Phobos 3 Discussion Notes - 02-01-2024

[Hipreme]

On Friday, 2 February 2024 at 18:19:47 UTC, jmh530 wrote:
> On Friday, 2 February 2024 at 09:09:37 UTC, Adam Wilson wrote:
>> Walter and I had a productive conversation yesterday about 
>> Phobos 3 and we felt it would be appropriate to share some 
>> notes on our discussion.
>>
>> [snip]
>
> When it comes to discussions around functions that allocate to 
> the heap, I think there is some benefit in implementing 
> lower-level functionality in functions that do not do any 
> allocations whatsoever. You can then have higher level API 
> above that that controls allocation and is more convenient to 
> use. That way users can opt in to whatever they want or write 
> their own more convenient API on top of the lower level 
> functions.
>
> May not work for everything, but could be a useful approach.


It may be still a bad solution. Countless times I have done 
functions which know how much to preallocate. The eager solution 
always seems to be a lot faster, and I have noticed the pattern 
of using `map` or `filter` or anything more + `.array` looking to 
infinitely slower than if you had a direct version. And I don't 
know about `release` versions. The thing is that 99% of the time 
I'm testing on debug builds and getting less speed only because 
I'm on debug looks really bad.

This should be addressed.