[Python-Dev] PEP 509: Add a private version to dict (original) (raw)
Greg Ewing greg.ewing at canterbury.ac.nz
Wed Jan 20 17:01:03 EST 2016
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Yury Selivanov wrote:
What I propose is to add a pointer "maextra" (same 64bits), which will be set to NULL for most dict instances (instead of maversion). "maextra" can then point to a struct that has a globally unique dict ID (uint64), and a version tag (unit64).
Why not just use a single global counter for allocating dict version tags, instead of one per dict?
-- Greg
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