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| author | Eli Bendersky <eliben@gmail.com> | 2013-03-08 05:31:54 -0800 |
|---|---|---|
| committer | Eli Bendersky <eliben@gmail.com> | 2013-03-08 05:31:54 -0800 |
| commit | 41f4f387a5a74e7d94d551ed227063936793e9dc (patch) | |
| tree | 0c74d583c4d84657d968a2d3ada3c5b5b5d5c15b /Doc/library/ctypes.rst | |
| parent | f0f272e28bdfa346c33bcacd4a78df4bbf837b67 (diff) | |
| download | cpython-41f4f387a5a74e7d94d551ed227063936793e9dc.tar.gz | |
Issue #17378: ctypes documentation fix.
Document that ctypes automatically applies byref() when argtypes declares
POINTER.
Diffstat (limited to 'Doc/library/ctypes.rst')
| -rw-r--r-- | Doc/library/ctypes.rst | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst index 033c488f21..486c963557 100644 --- a/Doc/library/ctypes.rst +++ b/Doc/library/ctypes.rst @@ -817,6 +817,11 @@ 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 |