fix: explicitly define mds diff type (privacy-scaling-explorations#196)

* fix: explicitly define mds diff type * rm paren
scroll-tech · Oct 9, 2023 · 669a670 · 669a670
1 parent d171a04
commit 669a670
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/halo2_gadgets/src/poseidon/primitives/mds.rs b/halo2_gadgets/src/poseidon/primitives/mds.rs
@@ -82,7 +82,8 @@ pub(super) fn generate_mds<F: FromUniformBytes<64> + Ord, const T: usize>(
                 acc
             } else {
                 // We can invert freely; by construction, the elements of xs are distinct.
-                acc * (x - x_m) * (x_j - x_m).invert().unwrap()
+                let diff: F = x_j - *x_m;
+                acc * (x - x_m) * diff.invert().unwrap()
             }
         })
     };