Show HN: SSO – Small String Optimization https://ift.tt/dpOXnL1

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Show HN: SSO – Small String Optimization I wrote this just for fun when saw article about sso in Rust[1]. My string can store up to 23 (excluding null-terminator) 8-bit chars without calling allocator. Here I can mistake, but.. Curious fact: both - libstdc++[2] and libc++[3] - do access to union member without any check that it is active now. AFAIK, this is UB in C++. But I assume that they just rely on theirs compiler features. I tried to avoid this using `std::byte[]`. But I'm still sure that there are several UB's in my code :) [1] https://ift.tt/0iPeAb3... [2] https://ift.tt/nYcDsBK... [3] https://ift.tt/C0QEkYj... https://ift.tt/9iDytOh October 12, 2024 at 11:56PM