gh-143132: Add math.sign() function#143133
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acolesnicov wants to merge 1 commit intopython:mainfrom
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Implementation includes IEEE 754 support, duck-typing, and a test suite.
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Most changes to Python require a NEWS entry. Add one using the blurb_it web app or the blurb command-line tool. If this change has little impact on Python users, wait for a maintainer to apply the |
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I'm closing this pr, as issue was closed. If you would like to reference this code in the discussion thread - you can open pr against your fork. Code will be available even if later you will close pr and remove branch. |
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Implementation of the
math.sign()function as proposed in gh-143132. Implementation includes IEEE 754 support, duck-typing, and a test suite.Summary of changes
math.signtoModules/mathmodule.cusing Argument Clinic.NaN, signed zero, infinity).Decimal,Fraction,SymPy, and more, and custom types).Lib/test/test_math.py.Doc/library/math.rst.Testing
python_d.exe -m test -R 3:3 test_mathto ensure no reference leaks.Closes gh-143132
📚 Documentation preview 📚: https://cpython-previews--143133.org.readthedocs.build/