alt Hacker NewsThis is just silly. You can't even reserve capacity because you only store size and capacity is implicitly the next power of 2 >= size.
This is just silly. You can't even reserve capacity because you only store size and capacity is implicitly the next power of 2 >= size.
The concept of not storing capacity isn't silly. If you need to reserve space then it's not the appropriate structure, but it's otherwise fine.
However, using an 2-element array to avoid using a struct is silly.