Fix `dpnp.ndarray.flat` indexing edge cases - #3045

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antonwolfy wants to merge 41 commits into

fix/SAT-8204-flatiter-indexing

Commits on Sep 3, 2026

Align dpnp.flatiter indexing edge cases with NumPy
antonwolfy
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7809332
Accept dpnp.ndarray subclasses in flatiter via isinstance check
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0bf9d53
Add flatiter indexing tests aligned with NumPy
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6c1e5b2
Cycle values in flatiter setitem and enable cupy iterate tests
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be8f6a0
Add CHANGELOG entry for flatiter indexing fix
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fe66c93
Improve dpnp.flatiter and dpnp.ndarray.flat docstrings
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575c6b1
Add NumPy reference to dpnp.ndarray.flat docstring
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ee7488c
Avoid full index array for scalar and slice flatiter assignment
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1dbcb7f
Catch out-of-bounds index wrapped in a tuple in flatiter
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6bc35e6
Bounds-check flat index on the host to avoid device transfers
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3a9333a
Reject an array value assigned to a single flatiter item
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f70a68a
Correct NumPy version gating of flatiter tests
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eb5804e
Use dpnp_array consistently in flatiter type checks
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63b0fb7
Cover negative-step slice in flatiter getitem test
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5c430b1
Reject a multi-element index tuple in flatiter
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7c87de9
Narrow index-conversion exception handling in flatiter
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338b6df
Consolidate flatiter key normalization into a single helper
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6c446ec
Reject non-mask boolean indices in flatiter
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9d48d82
Gate tuple-index flatiter tests and harden the iteration test
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e314321
Un-gate tuple-index flatiter tests (valid since NumPy 2.0)
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2f7e6e7

Commits on Sep 11, 2026

Address flatiter review comments: scalar/bool fast paths and cleanups
antonwolfy
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8c5fb70
Gate wrong-size bool mask flatiter test on numpy>=2.4
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554e542
Accept an empty boolean mask in flatiter
antonwolfy
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89e9d62
Tidy flatiter: extract _scalar_pos helper and minor cleanups
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78e333c
Correct a stale comment in flatiter _validate_key
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6f8c06b
Pin flatiter out-of-bounds behavior for an empty assignment value
antonwolfy
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d267afe
Merge branch 'master' into fix/SAT-8204-flatiter-indexing
antonwolfy
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1f4ea83
Reject a multi-dimensional boolean mask in flatiter
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156452f
Avoid a redundant full-size copy in flatiter getitem
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a62a89e
Fix flatiter getitem alias check to use the allocation base
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2d82dce
Respect compute-follows-data in flatiter setitem
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0d43c85
Reword the flatiter getitem alias-check comment
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e288078
Refine flatiter CFD helper and relocate its tests
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bd03352
Skip value cycling when dpnp.put already broadcasts in flatiter setitem
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df356ae
Drop dead bool guard from flatiter scalar fast paths
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9a2930d
Reuse validated index in flatiter setitem, avoiding an arange rebuild
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651bfcf
Match NumPy wording for the wrong-size flatiter boolean mask
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cf9503d
Note flatiter assignment fixes in the changelog
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92d0c68
Add flatiter test coverage for uncovered branches
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a4f9eac
Use cached self._size consistently in flatiter setitem
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a327d46
Tidy flatiter __next__ to idiomatic form
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05ae718