Re: ctypes accessing functions with double pointers

References	<CAN6JmWN3SMnyO+bo4oQOG1Pcpz_VReqM6_JTc6FQJHerjb40+g@mail.gmail.com>
Date	2011-11-07 14:29 -0800
Subject	Re: ctypes accessing functions with double pointers
From	Chris Rebert <clp2@rebertia.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.2523.1320704990.27778.python-list@python.org> (permalink)

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On Mon, Nov 7, 2011 at 2:06 PM, Eleftherios Garyfallidis
<garyfallidis@gmail.com> wrote:
> Hello,
>
> Is it possible using ctypes to call C functions from a shared object
> containing double pointers e.g. int foo(float **i) and if yes how?

(Untested conjecture:)

import ctypes
# ...create ctypes_wrapped_foo...
the_float = ctypes.c_float(42.1)
float_ptr = ctypes.byref(the_float)
i = ctypes.byref(float_ptr)
result_integer = ctypes_wrapped_foo(i)

Cheers,
Chris

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Re: ctypes accessing functions with double pointers Chris Rebert <clp2@rebertia.com> - 2011-11-07 14:29 -0800

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