From e754636a5edf872d15d463f32429ea4c5ffb19b7 Mon Sep 17 00:00:00 2001 From: Eli Bendersky Date: Fri, 8 Mar 2013 05:34:58 -0800 Subject: Closing #17378: ctypes documentation fix. Document that ctypes automatically applies byref() when argtypes declares POINTER. --- Doc/library/ctypes.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Doc/library/ctypes.rst b/Doc/library/ctypes.rst index b51ea51..7f62e30 100644 --- a/Doc/library/ctypes.rst +++ b/Doc/library/ctypes.rst @@ -816,6 +816,11 @@ 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 -- cgit v0.12