Recently, I just wanted to write some program and thought
about bignum support in XEmacs. I borrowed some code from
librep and implemented +. It was fairly easy and I put them
at
http://www.sodan.org/~penny/XEmacs/bignum-sample.tar.gz
Cool!
It is written as an external loadble module so your XEmacs
must have module support enabled. It also requires gmp
version 3. Since a module can't modify lisp reader, it's
only provided as a sample and you can't just have bignum
support. I'd like to implement all numeric functions with
bignum support and eventually incorporate it into core (of
course it will be possible to disable big num support).
That would be extremely nice, the emacs integer limits has bugged me for
quite a while.