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BUG: add bounds-checking to in-place string multiply #29074

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merged 1 commit into from
May 27, 2025

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@charris charris commented May 27, 2025

Backport of #29060.

Fixes #29011.

Re-do of #29056 without any backwards-incompatible changes.

Adds bounds-checking to the string multiply core, since in-place multiply via *= can bypass the code that constructs output buffers in np.strings.multiply.

  • BUG: add bounds-checking to in-place string multiply

  • MNT: check for overflow and raise OverflowError

  • MNT: respond to review suggestion

  • MNT: handle overflow in one more spot

  • MNT: make test behave the same on all architectures

  • MNT: reorder to avoid work in some cases

* BUG: add bounds-checking to in-place string multiply

* MNT: check for overflow and raise OverflowError

* MNT: respond to review suggestion

* MNT: handle overflow in one more spot

* MNT: make test behave the same on all architectures

* MNT: reorder to avoid work in some cases
@charris charris added this to the 2.3.0 release milestone May 27, 2025
@charris charris added 00 - Bug 08 - Backport Used to tag backport PRs labels May 27, 2025
@charris charris merged commit 274f1b9 into numpy:maintenance/2.3.x May 27, 2025
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@charris charris deleted the backport-29060 branch May 27, 2025 18:52
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