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Issue #23352: Document that Py_buffer.suboffsets must be NULL if no suboffsets

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Stefan Krah 2015-02-01 19:42:12 +01:00
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Doc/c-api/buffer.rst
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@ -198,6 +198,9 @@ a buffer, see :c:func:`PyObject_GetBuffer`.
indicates that no de-referencing should occur (striding in a contiguous
memory block).
If all suboffsets are negative (i.e. no de-referencing is needed, then
this field must be NULL (the default value).
This type of array representation is used by the Python Imaging Library
(PIL). See `complex arrays`_ for further information how to access elements
of such an array.