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J. Nick Koston
b8b219926d
Remove value-initialization ({}) from StaticVector's underlying
std::array. Only elements [0, count_) are ever accessed, so
initializing the full array is wasted work.
This eliminates a memset on every construction. Most impactful for
stack-allocated StaticVectors in hot paths like
APIPlaintextFrameHelper::write_protobuf_messages, which was
memsetting 276 bytes of iovec storage on every BLE proxy flush.
