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| author | Raymond Hettinger <rhettinger@users.noreply.github.com> | 2018-01-16 09:30:26 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2018-01-16 09:30:26 (GMT) |
| commit | b44c5169f64178d2ff2914187b315549e7ab0cb6 (patch) | |
| tree | a6123ca1509df2bc83fd36a275f95f58e735e869 /Objects | |
| parent | 94e1696d04c65e19ea52e5c8664079c9d9aa0e54 (diff) | |
| download | cpython-b44c5169f64178d2ff2914187b315549e7ab0cb6.zip cpython-b44c5169f64178d2ff2914187b315549e7ab0cb6.tar.gz cpython-b44c5169f64178d2ff2914187b315549e7ab0cb6.tar.bz2 | |
bpo-26163: Frozenset hash improvement (#5194)
Diffstat (limited to 'Objects')
| -rw-r--r-- | Objects/setobject.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Objects/setobject.c b/Objects/setobject.c index c920fb9..4bc1020 100644 --- a/Objects/setobject.c +++ b/Objects/setobject.c @@ -795,6 +795,7 @@ frozenset_hash(PyObject *self) hash ^= ((Py_uhash_t)PySet_GET_SIZE(self) + 1) * 1927868237UL; /* Disperse patterns arising in nested frozensets */ + hash ^= (hash >> 11) ^ (~hash >> 25); hash = hash * 69069U + 907133923UL; /* -1 is reserved as an error code */ |