Two changes:

- Fix setting `k` in `GlweOps`
- Improve GLWEPacker API avoid accumulating beyond limit (#50)

core/src/elem.rs

@@ -34,7 +34,7 @@ pub trait Infos {
     /// Returns the number of size per polynomial.
     fn size(&self) -> usize {
         let size: usize = self.inner().size();
-        debug_assert_eq!(size, self.k().div_ceil(self.basek()));
+        debug_assert!(size >= self.k().div_ceil(self.basek()));
         size
     }