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[libc++] Add an ABI setting to harden unique_ptr<T[]>::operator[] #91798

Merged
merged 1 commit into from
Sep 27, 2024
Merged

[libc++] Add an ABI setting to harden unique_ptr<T[]>::operator[] #91798

merged 1 commit into from
Sep 27, 2024

Commits on Sep 26, 2024

  1. [libc++] Harden unique_ptr<T[]>::operator[] when we can 

    This patch adds an ABI configuration that allows bounds-checking in
unique_ptr<T[]>::operator[] when it has been constructed with bounds
information in the API.

The patch also adds support for bounds-checking when an array cookie
is known to exist, which allows validating bounds without even changing
the ABI.

Drive-by changes:
- Improve the tests for `operator[]`
- Improve the tests for `.get()`
- Add a test for incomplete types support
    @ldionne
    ldionne committed Sep 26, 2024
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