r/cpp 6d ago

C++26: std::inplace_vector

https://www.sandordargo.com/blog/2026/08/26/cpp26-inplace-vector
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u/Defenestrator__ 4d 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.

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u/Chaosvex 2d ago

Two different use cases. This is equivalent to boost::static_vector but boost::small_vector is its own thing. It doesn't seem like the sort of thing that'd get added to the standard but there's probably already a proposal for it somewhere.