It's was the middle of the night in Norway when you posted that :-) Anyway, I'm 1 on ~x meaning x.conjugate(), because I always vote for making Cython more like Python and less like C.
I can do the stuff necessarry for conjugate(), or give you hints, which do you want? I won't be able to do it for another day. Dag Sverre Seljebotn -----Original Message----- From: Lisandro Dalcin <dalc...@gmail.com> Date: Thursday, Oct 8, 2009 1:53 am Subject: Re: [Cython] C++ complex support To: cython-...@codespeak.netreply-to: cython-dev@codespeak.net On Wed, Oct 7, 2009 at 6:59 PM, Robert Bradshaw ><rober...@math.washington.edu> wrote: >> >> Don't reopen the ticket, make a new one for C++ complex support. >> > >Done: http://trac.cython.org/cython_trac/ticket/398 > >>> For the case of C, C99 complexes will be automatically used ONLY if >>> _Complex_I is defined... of if the user explicitly pass >>> "-DPYX_CCOMPLEX=1" at C-compile time (or a Cython-included C header >>> #define PYX_CCOMPLEX=1), or if the directive "ccomplex=True". >>> >>> I'm still in doubt about how to handle 'ccomplex=True'... Should it >>> just enable by default using "#define PYX_CCOMPLEX=1", or actually >>> impact in code generation (as currently does)... >> >> I would be OK with it just changing the flag, with the code >> generation remaining unchanged. >> > >OK, this is work TBD in my patch... > >>> Ah! I forgot... I do not know how to implement z.conjugate(); the >>> C/C99/C++ support is there though... BTW, GCC seems to accept "~z" for >>> complex conjugation (no idea if it is C99-standard or a >>> GCC-extension)... Perhaps Cython should accept this (non-Python) >>> syntax? I think it is nice. >> >> I know is sage we map ~z to 1/z (it is the __invert__ operator after >> all). Python doesn't define an __invert__ for their native complex >> type. I could go either way. >> > >IMHO, my brain can parse "~z" as z.conjugate(), but would have a hard >time realizing ~z is "1/z"... Anyway, you are the BDLF, it's up to >you... Or the champion who actually implement support for >z.conjugate()... Hey, Dag. Are you there? ;-) > > > >-- >Lisandro Dalcín >--------------- >Centro Internacional de Métodos Computacionales en Ingeniería (CIMEC) >Instituto de Desarrollo Tecnológico para la Industria Química (INTEC) >Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET) >PTLC - Güemes 3450, (3000) Santa Fe, Argentina >Tel/Fax: +54-(0)342-451.1594 >_______________________________________________ >Cython-dev mailing list >Cython-dev@codespeak.net >http://codespeak.net/mailman/listinfo/cython-dev >
_______________________________________________ Cython-dev mailing list Cython-dev@codespeak.net http://codespeak.net/mailman/listinfo/cython-dev
