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gh-121485: Always use 64-bit integers for integers bits count (GH-121486)

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Use 64-bit integers instead of platform specific size_t or Py_ssize_t
to represent the number of bits in Python integer.
This commit is contained in:
Serhiy Storchaka 2024-08-30 08:13:24 +03:00 • committed by GitHub
parent 58ce131037
commit 32c7dbb2bc
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13 changed files with 187 additions and 111 deletions
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16
Lib/test/test_math.py
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@ -1120,6 +1120,15 @@ class MathTests(unittest.TestCase):
with self.assertRaises(TypeError):
math.isqrt(value)
@support.bigmemtest(2**32, memuse=0.85)
def test_isqrt_huge(self, size):
if size & 1:
size += 1
v = 1 << size
w = math.isqrt(v)
self.assertEqual(w.bit_length(), size // 2 + 1)
self.assertEqual(w.bit_count(), 1)
def test_lcm(self):
lcm = math.lcm
self.assertEqual(lcm(0, 0), 0)
@ -1261,6 +1270,13 @@ class MathTests(unittest.TestCase):
self.assertEqual(math.log(INF), INF)
self.assertTrue(math.isnan(math.log10(NAN)))
@support.bigmemtest(2**32, memuse=0.2)
def test_log_huge_integer(self, size):
v = 1 << size
self.assertAlmostEqual(math.log2(v), size)
self.assertAlmostEqual(math.log(v), size * 0.6931471805599453)
self.assertAlmostEqual(math.log10(v), size * 0.3010299956639812)
def testSumProd(self):
sumprod = math.sumprod
Decimal = decimal.Decimal