[issue43060] Convert _decimal C API from pointer array to struct

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

I have no opinion about *adding* a struct, but we shouldn't remove the existing array of pointers, or this will needlessly break compatibility for existing users of the C API.

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nosy: +pitrou

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43060>
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