Hi Stefan On Fri, Sep 09, 2011 at 10:35:20AM +0200, Stefan Behnel wrote: > Hi Romain, > > thanks for the feedback. > > Romain Guillebert, 08.09.2011 06:18: > >The Google Summer of Code has ended and I didn't give the current status > >to anyone yet (I was very busy with a report I had to write for my > >university). > > > >There is still work to do on the project (there was more work than I > >expected, especially because of semantic differences between Cython and > >ctypes) so I'll talk about what needs to be done (even if it does not > >sound good compared to talking about what has been done) from the most > >important to the least important in my opinion : > > > >- Pointer vs Array, Cython mixes the two while ctypes does not, this > > can probably be fixed by using arrays everywhere (if we can convert > > pointers into arrays) > > Could you elaborate on this? Why can't you always use pointers? >
You can't do array indexing on ctypes pointers (and no straightforward pointer arithmetic either) > > >- Take into account header files declared globally > > "globally" as in ... ? > > And what exactly do you mean by "take header files into account"? > Take into account : pass to ctypes_configure And I didn't want to say globally, but right now I only pass to ctypes_configure the header file given by "cdef extern from" and from my tests it's not enough > > >- Macros, this is probably the biggest part but it's doable, Cython has > > the types of the arguments and the return value so it's possible to > > generate a C function corresponding to a macro > > Agreed. I think that's the only viable solution. Won't work for all > macros, but at least for a rather large number of them. > > > >- Pointer to functions > > I take it this isn't implemented at all? Do you mean pointers to > Cython cdef functions or also to external C defined functions? > Pointer to cdefed functions and pointers to function returned by C functions (although I don't know for the later but it would surprise me) > > >Some of them are trivial, others just require good ideas and macros > >demands a big amount of work. > > Really? Apart from generating the rather straight forward wrapper > functions for them, what else needs to be done? > You have to include the right headers and take care of the types (if a type is ctypedefed there's probably something to do) > > >I'm still working on it and if someone wants to give a hand, I'll be > >happy to explain what I've done. > > Happy to hear that. > > Stefan Romain _______________________________________________ cython-devel mailing list cython-devel@python.org http://mail.python.org/mailman/listinfo/cython-devel
