On Thu, Mar 7, 2013 at 3:37 AM, Thomas Heller <thel...@ctypes.org> wrote:
> Am 06.03.2013 18:19, schrieb Eli Bendersky: > >> >> >> >> On Wed, Mar 6, 2013 at 8:33 AM, Andrew Svetlov <andrew.svet...@gmail.com >> <mailto:andrew.svetlov@gmail.**com <andrew.svet...@gmail.com>>> wrote: >> >> Looks like bug for me. >> >> >> ctypes seems to auto-convert arguments when argtypes is specified. This >> fact is documented. However, I'm not sure whether this auto-conversion >> is advanced enough to apply byref. Because otherwise, DIRENT is >> certainly not convertible to DIRENT_p >> > > If argtypes specify a 'POINTER(X)' type as an argument, then ctypes > automatically applies byref() if an 'X' instance is passed to the > actual call. This is by design, but I'm not sure if it is documented > or not. > > However, if argtypes is not given, this does (and of course cannot) work. > Great, thanks for confirming this, Thomas. I had the feeling it's a documentation issue (hence I sent it to the docs@ list first), because the behavior seems very deliberate and looking at the code of ctypes I did see conversions going on. Have I missed that this is documented somewhere, or should I open a docs issue? Eli
_______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
