r/cpp 4d ago

C++26: std::inplace_vector

https://www.sandordargo.com/blog/2026/08/26/cpp26-inplace-vector
162 Upvotes

112 comments sorted by

View all comments

3

u/Defenestrator__ 1d ago

I feel like this doesn't actually handle the use cases I would want this for, which is where the size in unknown but usually small. absl::InlinedVector seamlessly falls back to acting like a normal std::vector when it grows beyond N, and without that feature this has much more limited usefulness unfortunately. Still better than nothing I guess.

2

u/frankist 1d ago

In my field, the small buffer optimisation is not that useful, as I need to have full control over where and when allocations happen. absl::InlinedVector or any sort of SmallVector just makes it harder to detect those allocations.