mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-08-04 17:08:35 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 13

Issue #12744: Fix inefficient representation of integers

Browse source 
between 2**31 and 2**63 on systems with a 64-bit C "long".
This commit is contained in:
Antoine Pitrou 2011-08-13 20:15:19 +02:00
parent 780199e6a3
commit 3c7e928098
3 changed files with 14 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

10
Lib/test/pickletester.py
View file

@ -1118,6 +1118,16 @@ class AbstractPickleTests(unittest.TestCase):
empty = self.loads(b'\x80\x03U\x00q\x00.', encoding='koi8-r')
self.assertEqual(empty, '')
def test_int_pickling_efficiency(self):
# Test compacity of int representation (see issue #12744)
for proto in protocols:
sizes = [len(self.dumps(2**n, proto)) for n in range(70)]
# the size function is monotonous
self.assertEqual(sorted(sizes), sizes)
if proto >= 2:
self.assertLessEqual(sizes[-1], 14)
# Test classes for reduce_ex
class REX_one(object):