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BUG: Correct advance in PCG with emulated int128 #20049

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merged 1 commit into from Oct 7, 2021

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bashtage
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@bashtage bashtage commented Oct 6, 2021

Correct incorrect implemetation of carry in PCG64 and PCG64DXSM
when advancing more than 2**64 steps

closes #20048

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bashtage commented Oct 6, 2021

Do I need a release note?

Probably should backport.

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mattip commented Oct 6, 2021

Do I need a release note?

I think so, if you can write a concise one that would be nice. It doesn't have to explain too much, it can link to the issue.

@charris charris added the 09 - Backport-Candidate PRs tagged should be backported label Oct 6, 2021
@charris charris added this to the 1.21.3 release milestone Oct 6, 2021
Correct incorrect implemetation of carry in PCG64 and PCG64DXSM
when advancing more than 2**64 steps

closes numpy#20048
@charris charris merged commit 2f4cee5 into numpy:main Oct 7, 2021
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charris commented Oct 7, 2021

Thanks Kevin.

@charris charris removed the 09 - Backport-Candidate PRs tagged should be backported label Oct 10, 2021
@charris charris removed this from the 1.21.3 release milestone Oct 10, 2021
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PCG jump incorrectly emulates uint128 shift
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