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| author | Benjamin Peterson <benjamin@python.org> | 2010-10-17 20:54:53 (GMT) |
|---|---|---|
| committer | Benjamin Peterson <benjamin@python.org> | 2010-10-17 20:54:53 (GMT) |
| commit | 8f67d0893f7170986b0ad370844318544270cbcc (patch) | |
| tree | 4aec6cf093d4d042d18d1fadc3ce52765d32bd8d /Doc/c-api/object.rst | |
| parent | 6fb457526cef485d64f4f6744d81cae8c02032b3 (diff) | |
| download | cpython-8f67d0893f7170986b0ad370844318544270cbcc.zip cpython-8f67d0893f7170986b0ad370844318544270cbcc.tar.gz cpython-8f67d0893f7170986b0ad370844318544270cbcc.tar.bz2 | |
make hashes always the size of pointers; introduce Py_hash_t #9778
Diffstat (limited to 'Doc/c-api/object.rst')
| -rw-r--r-- | Doc/c-api/object.rst | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/Doc/c-api/object.rst b/Doc/c-api/object.rst index 7efc0d2..8410934 100644 --- a/Doc/c-api/object.rst +++ b/Doc/c-api/object.rst @@ -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, |