docs(queue): clarify pcTail marker comment - #1471
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Description
Clarify the
pcTailmember comment. The queue allocates exactlyuxQueueLength * uxItemSizebytes and setspcTailimmediately afterthat storage area, so it is a one-past-the-end marker rather than an
extra allocated byte.
No runtime behavior changes.
Test Steps
git diff --checkpcTailassignment inqueue.cChecklist:
Unit tests are not applicable because this is a comment-only change.
Related Issue
N/A
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