FA-46932 / Bounded deques / Member archive

Deque commit forgets already-published resident values · case 02

Deque commit forgets already-published resident values.

Member previewVariant 2 · 3 implementations · 7 checks per implementation

Case contract

A bounded deque write reservation publishes exactly its initialized prefix. Reject negative, uninitialized, over-reserved or over-capacity commit counts atomically. Successful commit releases the entire reservation and advances structure epoch only for nonempty publication.

Why this case matters

Controlled bounded deque implementation model with explicit storage and lifecycle observations.

One recorded failure

Sample boundary fixture

This sample comes from the broken implementation of a controlled reproducer.

Boundary fixture	Actual	Expected	Outcome
3	`[[2, 3, 4, 5], 0, 6, true, []]`	`[[2, 3], 2, 5, false, []]`	Failed

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