On Mon, Apr 17, 2017 at 5:58 PM, Rob Gaddi
<rgaddi@highlandtechnology.invalid> wrote:
> buffertype = c_uint8 * size
> return addressof(buffertype.from_buffer(buf, offset))
>
> works but is inefficient and woefully inelegant.
A lot of the cost there is in creating buffertype, but why do you need
that? You can use c_char.from_buffer if all you need is the base
address.
import ctypes
def addressof_buffer(buf):
return ctypes.addressof(ctypes.c_char.from_buffer(buf))
>>> b = bytearray(b'spam')
>>> addressof_buffer(b)
2619159025048
>>> ctypes.string_at(2619159025048, 5)
b'spam\x00'
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