Minimise diff

Author: matthiasgoergens

spartan_parallel/src/scalar/mod.rs

@@ -8,6 +8,7 @@ pub use fp2::ScalarExt2;
 use rand::{CryptoRng, RngCore};
 use serde::Serialize;
 use std::fmt;
+use std::ops::{AddAssign, MulAssign, SubAssign};
 use std::{
   cmp::Eq,
   hash::Hash,
@@ -35,8 +36,14 @@ pub trait SpartanExtensionField:
   + Neg
   + Default
   + Add<Output = Self>
+  + AddAssign
+  + for<'a> AddAssign<&'a Self>
   + Sub<Output = Self>
+  + SubAssign
+  + for<'a> SubAssign<&'a Self>
   + Mul<Output = Self>
+  + MulAssign
+  + for<'a> MulAssign<&'a Self>
   + Sum
   + Product
   + Clone

spartan_parallel/src/unipoly.rs

@@ -71,8 +71,8 @@ impl<Scalar: SpartanExtensionField> UniPoly<Scalar> {
     let mut eval = self.coeffs[0];
     let mut power = *r;
     for i in 1..self.coeffs.len() {
-      eval = eval + power * self.coeffs[i];
-      power = power * *r;
+      eval += power * self.coeffs[i];
+      power *= r;
     }
     eval
   }