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authorMark Dickinson <dickinsm@gmail.com>2009-02-02 21:29:40 (GMT)
committerMark Dickinson <dickinsm@gmail.com>2009-02-02 21:29:40 (GMT)
commit9f9892648f954e45a628113febb524261075db32 (patch)
tree9a9e70a2318e67812787794ea9ab91f59b16b37a /Doc/c-api/typeobj.rst
parent7f42395b6d78a7c8e6b2ef2623c181aa93084269 (diff)
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Issue #1717, continued: Doc fixes and other cleanup related
to renaming of tp_compare.
Diffstat (limited to 'Doc/c-api/typeobj.rst')
-rw-r--r--Doc/c-api/typeobj.rst37
1 files changed, 13 insertions, 24 deletions
diff --git a/Doc/c-api/typeobj.rst b/Doc/c-api/typeobj.rst
index 6d98d6b..7dd576e 100644
--- a/Doc/c-api/typeobj.rst
+++ b/Doc/c-api/typeobj.rst
@@ -23,7 +23,7 @@ structure.
Typedefs: unaryfunc, binaryfunc, ternaryfunc, inquiry, intargfunc,
intintargfunc, intobjargproc, intintobjargproc, objobjargproc, destructor,
freefunc, printfunc, getattrfunc, getattrofunc, setattrfunc, setattrofunc,
-cmpfunc, reprfunc, hashfunc
+reprfunc, hashfunc
The structure definition for :ctype:`PyTypeObject` can be found in
:file:`Include/object.h`. For convenience of reference, this repeats the
@@ -244,19 +244,9 @@ type objects) *must* have the :attr:`ob_size` field.
the subtype's :attr:`tp_setattr` and :attr:`tp_setattro` are both *NULL*.
-.. cmember:: cmpfunc PyTypeObject.tp_compare
+.. cmember:: void* PyTypeObject.tp_reserved
- An optional pointer to the three-way comparison function.
-
- The signature is the same as for :cfunc:`PyObject_Compare`. The function should
- return ``1`` if *self* greater than *other*, ``0`` if *self* is equal to
- *other*, and ``-1`` if *self* less than *other*. It should return ``-1`` and
- set an exception condition when an error occurred during the comparison.
-
- This field is inherited by subtypes together with :attr:`tp_richcompare` and
- :attr:`tp_hash`: a subtypes inherits all three of :attr:`tp_compare`,
- :attr:`tp_richcompare`, and :attr:`tp_hash` when the subtype's
- :attr:`tp_compare`, :attr:`tp_richcompare`, and :attr:`tp_hash` are all *NULL*.
+ Reserved slot, formerly known as tp_compare.
.. cmember:: reprfunc PyTypeObject.tp_repr
@@ -329,14 +319,13 @@ type objects) *must* have the :attr:`ob_size` field.
the Python level will result in the ``tp_hash`` slot being set to
:cfunc:`PyObject_HashNotImplemented`.
- When this field is not set, two possibilities exist: if the :attr:`tp_compare`
- and :attr:`tp_richcompare` fields are both *NULL*, a default hash value based on
- the object's address is returned; otherwise, a :exc:`TypeError` is raised.
+ When this field is not set, an attempt to take the hash of the
+ object raises :exc:`TypeError`.
- This field is inherited by subtypes together with :attr:`tp_richcompare` and
- :attr:`tp_compare`: a subtypes inherits all three of :attr:`tp_compare`,
- :attr:`tp_richcompare`, and :attr:`tp_hash`, when the subtype's
- :attr:`tp_compare`, :attr:`tp_richcompare` and :attr:`tp_hash` are all *NULL*.
+ This field is inherited by subtypes together with
+ :attr:`tp_richcompare`: a subtype inherits both of
+ :attr:`tp_richcompare` and :attr:`tp_hash`, when the subtype's
+ :attr:`tp_richcompare` and :attr:`tp_hash` are both *NULL*.
.. cmember:: ternaryfunc PyTypeObject.tp_call
@@ -596,10 +585,10 @@ type objects) *must* have the :attr:`ob_size` field.
comparisons makes sense (e.g. ``==`` and ``!=``, but not ``<`` and
friends), directly raise :exc:`TypeError` in the rich comparison function.
- This field is inherited by subtypes together with :attr:`tp_compare` and
- :attr:`tp_hash`: a subtype inherits all three of :attr:`tp_compare`,
- :attr:`tp_richcompare`, and :attr:`tp_hash`, when the subtype's
- :attr:`tp_compare`, :attr:`tp_richcompare`, and :attr:`tp_hash` are all *NULL*.
+ This field is inherited by subtypes together with :attr:`tp_hash`:
+ a subtype inherits :attr:`tp_richcompare` and :attr:`tp_hash` when
+ the subtype's :attr:`tp_richcompare` and :attr:`tp_hash` are both
+ *NULL*.
The following constants are defined to be used as the third argument for
:attr:`tp_richcompare` and for :cfunc:`PyObject_RichCompare`: