Re: Incorporating Pari into a C program

On 2025-05-17 09:48, Gordon Royle wrote:
> Hi Pari Users
> 
> I do a lot of things with graph polynomials and their roots and for
> that I use GP a lot, but only in a naïve way – essentially just
> calling polrootsreal on billions of polynomials (using a Perl script
> to actually format the relevant GP commands).
> 
> Now I need to do something different and although I have tried to read
> the manual, I am lost.
> 
> What I need is a C function that will operate as a “plugin” to an
> existing C program (not written by me).
> 
The other answers helped with your request to call pari lib functions 
from C code.

PARI allows for external C functions to be called from within GP as well 
(the other direction). In case you ever need that, here is a simple 
example of making cgal lib functions available in GP:
https://github.com/Hermann-SW/cgal4gp

Regards,

Hermann.