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| author | Raymond Hettinger <python@rcn.com> | 2015-08-01 17:57:42 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2015-08-01 17:57:42 (GMT) |
| commit | 36c0500990a383a47228855bae712595f7f5e1d5 (patch) | |
| tree | 38ae3abc0cd9572e426895cba367f3073481352f /Objects/setobject.c | |
| parent | fbffdef47dd711d2441ff415f00c72ae7102e80f (diff) | |
| download | cpython-36c0500990a383a47228855bae712595f7f5e1d5.zip cpython-36c0500990a383a47228855bae712595f7f5e1d5.tar.gz cpython-36c0500990a383a47228855bae712595f7f5e1d5.tar.bz2 | |
Tweak the comments
Diffstat (limited to 'Objects/setobject.c')
| -rw-r--r-- | Objects/setobject.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/Objects/setobject.c b/Objects/setobject.c index 2d4d8cd..d638c13 100644 --- a/Objects/setobject.c +++ b/Objects/setobject.c @@ -763,7 +763,7 @@ frozenset_hash(PyObject *self) Py_uhash_t hash = 1927868237UL; setentry *entry; - /* Make hash(frozenset({0})) distinct from hash(frozenset()) */ + /* Initial dispersion based on the number of active entries */ hash *= (Py_uhash_t)PySet_GET_SIZE(self) + 1; /* Xor-in shuffled bits from every entry's hash field because xor is @@ -790,8 +790,10 @@ frozenset_hash(PyObject *self) /* Disperse patterns arising in nested frozensets */ hash = hash * 69069U + 907133923UL; + /* -1 is reserved as an error code */ if (hash == (Py_uhash_t)-1) hash = 590923713UL; + so->hash = hash; return hash; } |