Re: real/imag for t_QUAD

[Vincent Delecroix <vincent.delecroix@u-bordeaux.fr>]

Le 30/07/2019 à 00:36, Karim Belabas a écrit :
> * Karim Belabas [2019-07-30 00:35]:
> > * Vincent Delecroix [2019-07-30 00:28]:
> > > Le 30/07/2019 à 00:25, Bill Allombert a écrit :
> > > > But the real question is why do you want to use t_QUAD ?
> > >
> > > I don't want to use it. I am working on cypari2. I want to fix the
> > > conversion of GEN to Python complex number (double floating point
> > > precision). This used to rely on real_i/imag_i and the question is
> > > how should I deal with t_QUAD properly?
> >
> >   x = quadtofp(x, DEFAULTPREC);
> >
> > and then you have an ordinary complex number (possibly real or even rational)
> > to worry about.
>
> More generally, gtofp() is the standard libpari idiom to replace GP's x * 1.

Merveilleux!

Thank you.
Vincent