Removed unnecesssary bit inversion which doesn't improve dispersion statistics (#5235)

fa788060 · Raymond Hettinger · GitHub · 05d68a8b · fa788060
Commit fa788060 authored Jan 18, 2018 by Raymond Hettinger Committed by GitHub Jan 18, 2018
Hide whitespace changes
Inline Side-by-side

Showing with 1 addition and 1 deletion

Objects/setobject.c Objects/setobject.c +1 -1

No files found.
--- a/Objects/setobject.c
+++ b/Objects/setobject.c
@@ -795,7 +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 >> 11) ^ (hash >> 25);
    hash = hash * 69069U + 907133923UL;

    /* -1 is reserved as an error code */