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Title: GH-100425: Improve accuracy of builtin sum() for float inputs by rhettinger · Pull Request #100426 · python/cpython · GitHub

Open Graph Title: GH-100425: Improve accuracy of builtin sum() for float inputs by rhettinger · Pull Request #100426 · python/cpython

X Title: GH-100425: Improve accuracy of builtin sum() for float inputs by rhettinger · Pull Request #100426 · python/cpython

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Open Graph Description: Issue: Improve accuracy of builtin sum() for float inputs #100425

X Description: Issue: Improve accuracy of builtin sum() for float inputs #100425

Opengraph URL: https://github.com/python/cpython/pull/100426

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GH-100425: Improve accuracy of builtin sum() for float inputshttps://github.com/python/cpython/pull/100426/commits#top
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Restore the bogus sign testshttps://github.com/python/cpython/pull/100426/commits/0c2ba04d23057d4228ba8be9d31b5b884f74d0a1
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Move local declarations inside the block where they are used.https://github.com/python/cpython/pull/100426/commits/4da0b8ff2e83ecea46bab85d56850851ea3c7eec
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For consistent results, apply compensation on the slow path as well.https://github.com/python/cpython/pull/100426/commits/6c7894c82d2b2e562c2f72ef32745533917fbeee
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