Use fully qualified namespace for div_by_2 to avoid confusion

Author: xuganyu96

src/modular/boxed_residue.rs

@@ -9,7 +9,7 @@ mod pow;
 mod sub;
 
 use super::{
-    div_by_2::boxed::div_by_2,
+    div_by_2,
     reduction::{montgomery_reduction_boxed, montgomery_reduction_boxed_mut},
     Retrieve,
 };
@@ -242,7 +242,10 @@ impl BoxedResidue {
     ///   (since the modulus `p` in Montgomery form is always odd, this divides entirely).
     pub fn div_by_2(&self) -> Self {
         Self {
-            montgomery_form: div_by_2(&self.montgomery_form, &self.residue_params.modulus),
+            montgomery_form: div_by_2::boxed::div_by_2(
+                &self.montgomery_form,
+                &self.residue_params.modulus,
+            ),
             residue_params: self.residue_params.clone(), // TODO: avoid clone?
         }
     }

src/uint/boxed/div.rs

@@ -1,7 +1,9 @@
 //! [`BoxedUint`] division operations.
 
 use crate::{
-    uint::boxed::div_limb, BoxedUint, CheckedDiv, Limb, NonZero, Reciprocal, Wrapping, ConstantTimeSelect};
+    uint::boxed::div_limb, BoxedUint, CheckedDiv, ConstantTimeSelect, Limb, NonZero, Reciprocal,
+    Wrapping,
+};
 use core::ops::{Div, DivAssign, Rem, RemAssign};
 use subtle::{Choice, ConstantTimeEq, ConstantTimeLess, CtOption};
 

src/uint/boxed/shl.rs

@@ -1,6 +1,6 @@
 //! [`BoxedUint`] bitwise left shift operations.
 
-use crate::{BoxedUint, ConstantTimeSelect,  ConstChoice, Limb, Word, WrappingShl, Zero};
+use crate::{BoxedUint, ConstChoice, ConstantTimeSelect, Limb, Word, WrappingShl, Zero};
 use core::ops::{Shl, ShlAssign};
 use subtle::{Choice, ConstantTimeLess};
 

src/uint/boxed/sqrt.rs

@@ -2,7 +2,7 @@
 
 use subtle::{ConstantTimeEq, ConstantTimeGreater, CtOption};
 
-use crate::{ConstantTimeSelect, BoxedUint, NonZero};
+use crate::{BoxedUint, ConstantTimeSelect, NonZero};
 
 impl BoxedUint {
     /// Computes √(`self`) in constant time.