On Fri, Sep 21, 2012 at 1:16 AM, Glyph <gl...@twistedmatrix.com> wrote: > Le Sep 20, 2012 à 11:35 AM, David Beazley <d...@dabeaz.com> a écrit : > >> Well, if it's supposed to do that, it certainly doesn't work for me in 3.3. >> I get a type error about it wanting a ctypes pointer object. Even if this >> worked, it still doesn't address the need to get the pointer value possibly >> for some other purpose such as handling it off to a bunch of code generated >> via LLVM. > > It seems like there's no reason to need to get the pointer value out as a > Python integer. If you are trying to get a pointer from a memoryview into > some C code, or into some LLVM generated code, you still need to do the > Python int object → C integer-of-some-kind → C pointer type conversion. > Better to just go straight from Python memoryview object → C pointer in one > supported API call. Isn't this what the y* w* s* format codes are for? > > Every time I have something that's a big number and I need to turn it into a > pointer, I have to stare at the table in > <http://en.wikipedia.org/wiki/64_bit#64-bit_data_models> for like 30 seconds. > I'd rather have some Python API do the staring for me. David, I realize > that table is probably permanently visible in the heads-up display that your > cybernetic implants afford you, but some of us need to make our way through C > code with humbler faculties ;-). > > -g
This is also kind of a problem with PyPy and CFFI, where we actively discourage people from using C. Passing address as an int sounds like a very reasonable solution. Cheers, fijal _______________________________________________ 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
