mirrors/cpython
1
0
Fork 0
mirror of https://github.com/python/cpython.git synced 2025-11-01 18:51:43 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 21

Issue #17378: ctypes documentation fix.

Browse source 
Document that ctypes automatically applies byref() when argtypes declares
POINTER.
This commit is contained in:
Eli Bendersky 2013-03-08 05:33:05 -08:00
commit 25b3464498
1 changed files with 5 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

5
Doc/library/ctypes.rst
View file

@ -822,6 +822,11 @@ pointer types. So, for ``POINTER(c_int)``, ctypes accepts an array of c_int::
3
>>>
In addition, if a function argument is explicitly declared to be a pointer type
(such as ``POINTER(c_int)``) in :attr:`argtypes`, an object of the pointed
type (``c_int`` in this case) can be passed to the function. ctypes will apply
the required :func:`byref` conversion in this case automatically.
To set a POINTER type field to ``NULL``, you can assign ``None``::
>>> bar.values = None