hey!!! write something more!
I'm just using the C code I wrote for CoCoA-4. It will be entirely rewritten in C++
The only usable function is
RingElem HilbertNumeratorMod(PolyRing HSRing, ideal I);
but it works ONLY if I is a monomial ideal. HSRing is the ring where the Hilbert Series Numerator should live.