8000 bpo-43420: Simple optimizations for Fraction's arithmetics by skirpichev · Pull Request #24779 · python/cpython · GitHub
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bpo-43420: Simple optimizations for Fraction's arithmetics #24779

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Merged
merged 13 commits into from
Mar 22, 2021
Merged

bpo-43420: Simple optimizations for Fraction's arithmetics #24779

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598b3c9
Merge Fraction._add/sub() to a common helper _add_sub_()
skirpichev Mar 11, 2021
430e476
bpo-43420: Simple optimizations for Fraction's arithmetics
skirpichev Mar 14, 2021
046c84e
Use Fraction's private attributes in arithmetic methods
skirpichev Mar 14, 2021
772bec6
Rational addition/substraction: special-case g2 == 1
skirpichev Mar 15, 2021
3d5d321
Special-case for trivial gcd in Fraction._mul()/_div() as well
skirpichev Mar 16, 2021
32778ab
Amend _add_sub_() comment for fractions, obtained from floats
skirpichev Mar 16, 2021
ea38398
Revert "Use Fraction's private attributes in arithmetic methods"
skirpichev Mar 17, 2021
f4b151a
Revert 598b3c9630 & make _add()/_sub() less nested
skirpichev Mar 17, 2021
40401af
Apply spelling fixes
skirpichev Mar 18, 2021
020037a
Restore back initial d test in _div() per Mark suggestion
skirpichev Mar 18, 2021
bde52d1
Add coverage tests (missing in test_fractions.py)
skirpichev Mar 18, 2021
51b52b6
Merge branch 'master' into opt-fractions
skirpichev Mar 20, 2021
2789350
Update Misc/ACKS
skirpichev Mar 20, 2021
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Add coverage tests (missing in test_fractions.py)
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@skirpichev
skirpichev committed Mar 18, 2021
commit bde52d149ebe973785e6b1714f1058522f70783b
2 changes: 2 additions & 0 deletions Lib/test/test_fractions.py
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Expand Up @@ -369,7 +369,9 @@ def testArithmetic(self):
self.assertEqual(F(1, 2), F(1, 10) + F(2, 5))
self.assertEqual(F(-3, 10), F(1, 10) - F(2, 5))
self.assertEqual(F(1, 25), F(1, 10) * F(2, 5))
self.assertEqual(F(5, 6), F(2, 3) * F(5, 4))
self.assertEqual(F(1, 4), F(1, 10) / F(2, 5))
self.assertEqual(F(-15, 8), F(3, 4) / F(-2, 5))
self.assertTypedEquals(2, F(9, 10) // F(2, 5))
self.assertTypedEquals(10**23, F(10**23, 1) // F(1))
self.assertEqual(F(5, 6), F(7, 3) % F(3, 2))
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