Generalized apply_binary_op & apply_unary_op

base2k/src/commons.rs

@@ -244,7 +244,7 @@ where
     });
 }
 
-pub fn znx_post_process_ternary_op<T: ZnxInfos + ZnxLayout + ZnxBasics, const NEGATE: bool>(c: &mut T, a: &T, b: &T)
+pub fn znx_post_process_ternary_op<T: ZnxLayout + ZnxBasics, const NEGATE: bool>(c: &mut T, a: &T, b: &T)
 where
     <T as ZnxLayout>::Scalar: IntegerType,
 {
@@ -292,3 +292,56 @@ where
         });
     }
 }
+
+#[inline(always)]
+pub fn apply_binary_op<B: Backend, T: ZnxBasics + ZnxLayout, const NEGATE: bool>(
+    module: &Module<B>,
+    c: &mut T,
+    a: &T,
+    b: &T,
+    op: impl Fn(&mut [T::Scalar], &[T::Scalar], &[T::Scalar]),
+) where
+    <T as ZnxLayout>::Scalar: IntegerType,
+{
+    #[cfg(debug_assertions)]
+    {
+        assert_eq!(a.n(), module.n());
+        assert_eq!(b.n(), module.n());
+        assert_eq!(c.n(), module.n());
+        assert_ne!(a.as_ptr(), b.as_ptr());
+    }
+    let a_cols: usize = a.cols();
+    let b_cols: usize = b.cols();
+    let c_cols: usize = c.cols();
+    let min_ab_cols: usize = min(a_cols, b_cols);
+    let min_cols: usize = min(c_cols, min_ab_cols);
+    // Applies over shared cols between (a, b, c)
+    (0..min_cols).for_each(|i| op(c.at_poly_mut(i, 0), a.at_poly(i, 0), b.at_poly(i, 0)));
+    // Copies/Negates/Zeroes the remaining cols if op is not inplace.
+    if c.as_ptr() != a.as_ptr() && c.as_ptr() != b.as_ptr() {
+        znx_post_process_ternary_op::<T, NEGATE>(c, a, b);
+    }
+}
+
+#[inline(always)]
+pub fn apply_unary_op<B: Backend, T: ZnxBasics + ZnxLayout>(
+    module: &Module<B>,
+    b: &mut T,
+    a: &T,
+    op: impl Fn(&mut [T::Scalar], &[T::Scalar]),
+) where
+    <T as ZnxLayout>::Scalar: IntegerType,
+{
+    #[cfg(debug_assertions)]
+    {
+        assert_eq!(a.n(), module.n());
+        assert_eq!(b.n(), module.n());
+    }
+    let a_cols: usize = a.cols();
+    let b_cols: usize = b.cols();
+    let min_cols: usize = min(a_cols, b_cols);
+    // Applies over the shared cols between (a, b)
+    (0..min_cols).for_each(|i| op(b.at_poly_mut(i, 0), a.at_poly(i, 0)));
+    // Zeroes the remaining cols of b.
+    (min_cols..b_cols).for_each(|i| (0..b.size()).for_each(|j| b.zero_at(i, j)));
+}