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bpo-40602: Add _Py_HashPointerRaw() function (GH-20056)

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Add a new _Py_HashPointerRaw() function which avoids replacing -1
with -2 to micro-optimize hash table using pointer keys: using
_Py_hashtable_hash_ptr() hash function.
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Victor Stinner 2020-05-12 18:46:20 +02:00 • committed by GitHub
parent 4c9ea093cd
commit f453221c8b
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3 changed files with 13 additions and 5 deletions
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Include/pyhash.h
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@ -9,6 +9,8 @@ extern "C" {
#ifndef Py_LIMITED_API
PyAPI_FUNC(Py_hash_t) _Py_HashDouble(double);
PyAPI_FUNC(Py_hash_t) _Py_HashPointer(const void*);
// Similar to _Py_HashPointer(), but don't replace -1 with -2
PyAPI_FUNC(Py_hash_t) _Py_HashPointerRaw(const void*);
PyAPI_FUNC(Py_hash_t) _Py_HashBytes(const void*, Py_ssize_t);
#endif