FA-98064 / Sequence batch packing / Member archive
Right padding mask includes the first padded position · case 04
Right padding mask includes the first padded position.
Case contract
Right-pad tokens with zero to width and return a mask of ones for original positions followed by zeros.
Why this case matters
This deterministic toy packing rule models a common boundary in preparing bounded training sequences.
One recorded failure
Sample boundary fixtureThis sample comes from the broken implementation of a controlled reproducer.
| Boundary fixture | Actual | Expected | Outcome |
|---|---|---|---|
| one pad | [[4, 0, 0, 0, 0], [1, 1, 0, 0, 0]] | [[4, 0, 0, 0, 0], [1, 0, 0, 0, 0]] | Failed |
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This record includes three runnable implementations, regression fixtures, execution results, and source hashes.
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