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J. Nick Koston
d7594db6fd
The three swap-with-copy lines in trim_freelist() inlined the construct-swap-destruct dance per call site, costing ~440 B flash on ESP32. Move the swap-shrink into a noinline private static helper so all three callers share one body. Net flash cost of vector shrinking drops to ~296 B (from ~444 B) while preserving the same RAM-reclaim behaviour. shrink_to_fit() is a non-binding hint that the toolchain ignores, so the swap-with-copy idiom is still required.
