On Tue, Sep 21, 2021 at 1:30 PM A Z <powerus...@live.com.au> wrote: > -A library like GMP, written in C, is an appropriate basis to start from and > to include, for all OS platforms involved.
Are you aware of Daniele Varrazzo's extension https://github.com/dvarrazzo/pgmp/ ? (Never looked into it myself, but this seems like the sort of thing you might be looking for?)
