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make hashes always the size of pointers; introduce Py_hash_t #9778

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Benjamin Peterson 2010-10-17 20:54:53 +00:00
parent 6fb457526c
commit 8f67d0893f
31 changed files with 137 additions and 131 deletions
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Doc/c-api/object.rst
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@ -247,15 +247,20 @@ is considered sufficient for this determination.
*NULL* on failure.
.. c:function:: long PyObject_Hash(PyObject *o)
.. c:function:: Py_hash_t PyObject_Hash(PyObject *o)
.. index:: builtin: hash
Compute and return the hash value of an object *o*. On failure, return ``-1``.
This is the equivalent of the Python expression ``hash(o)``.
.. versionchanged:: 3.2
.. c:function:: long PyObject_HashNotImplemented(PyObject *o)
The return type is now Py_hash_t. This is a signed integer the same size
as Py_ssize_t.
.. c:function:: Py_hash_t PyObject_HashNotImplemented(PyObject *o)
Set a :exc:`TypeError` indicating that ``type(o)`` is not hashable and return ``-1``.
This function receives special treatment when stored in a ``tp_hash`` slot,