[issue28959] Add a macro for dict size
Serhiy Storchaka
report at bugs.python.org
Wed Dec 14 04:59:13 EST 2016
Serhiy Storchaka added the comment:
Updated patch addresses Victor's issue. _PyDict_GET_SIZE is renamed to PyDict_GET_SIZE and now it includes an assertion. This is good argument for introducing this macro against using PyDict_Size (without checking the result for error) and Py_SIZE (which doesn't check the type).
> Can someone check if it has an impact of the size of the structure (because of the complex rules of alignment)?
There are special tests for that.
Actually I think that switching to PyObject_VAR_HEAD is different issue. The patch can be pushed without changes to dictobject.c and the structure of a dict.
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Added file: http://bugs.python.org/file45892/PyDict_GET_SIZE-3.patch
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