[issue43009] Port curses capi pointer array to a struct

[hai shi]

Change by hai shi <shihai1991 at 126.com>:


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keywords: +patch
pull_requests: +23125
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/24304

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43009>
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