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kjbracey
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@kjbracey kjbracey commented Oct 31, 2019

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Shifting negative numbers right is implementation-defined, and shifting positive signed numbers left and exceeding positive range is undefined.

Take care to make sure we always shift unsigned values.

Attempt to fix #11778


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[X] Patch update (Bug fix / Target update / Docs update / Test update / Refactor)
[] Feature update (New feature / Functionality change / New API)
[] Major update (Breaking change E.g. Return code change / API behaviour change)

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[] No Tests required for this change (E.g docs only update)
[] Covered by existing mbed-os tests (Greentea or Unittest)
[X] Tests / results supplied as part of this PR

Shifting negative numbers right is implementation-defined, and shifting
positive signed numbers left and exceeding positive range is undefined.

Take care to make sure we always shift unsigned values.
@ciarmcom
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@kjbracey-arm, thank you for your changes.
@ARMmbed/mbed-os-core @ARMmbed/mbed-os-maintainers please review.

@ciarmcom ciarmcom requested review from a team October 31, 2019 12:00
@0xc0170
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0xc0170 commented Nov 5, 2019

@ARMmbed/mbed-os-core Please review, I'll run CI meanwhile

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mbed-ci commented Nov 5, 2019

Test run: SUCCESS

Summary: 11 of 11 test jobs passed
Build number : 1
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EventQueue: impossible to cancel event with negative unique id

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