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| author | Eli Bendersky <eliben@gmail.com> | 2013-03-08 13:31:54 (GMT) |
|---|---|---|
| committer | Eli Bendersky <eliben@gmail.com> | 2013-03-08 13:31:54 (GMT) |
| commit | f81de8df0aca07531087b56227b730889114c524 (patch) | |
| tree | 5789d566e4a9deeb1948f28160e31743999b1e25 | |
| parent | b9534f4ed5cb8c78468868d2ca44769057084d83 (diff) | |
| download | cpython-f81de8df0aca07531087b56227b730889114c524.zip cpython-f81de8df0aca07531087b56227b730889114c524.tar.gz cpython-f81de8df0aca07531087b56227b730889114c524.tar.bz2 | |
Issue #17378: ctypes documentation fix.
Document that ctypes automatically applies byref() when argtypes declares
POINTER.
| -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 033c488..486c963 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 |