On Tuesday, 4 April 2023 at 22:20:52 UTC, H. S. Teoh wrote:
Best practices for arrays in hot loops:
- Avoid appending if possible; instead, pre-allocate outside
the loop.
- Where possible, reuse existing arrays instead of discarding
old ones
and allocating new ones.
- Use slices where possible instead of making copies of
subarrays (this
esp. applies to strings).
- Where possible, prefer sequential access over random access
(take
advantage of the CPU cache hierarchy).
Thanks for sharing Teoh! Very helpful.
would this be random access? for(size_t i; i<arr.length; i++)
using indices?
...and this be sequential foreach(a;arr) ?
or would they have to be completely different kinds of containers?
a dlang 'range' vs arr[]?
