Make PartialEq implementation for DequeInner and HistoryBufInner generic over the storage of the RHS

Author: sgued

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 
 - Added `from_bytes_truncating_at_nul` to `CString`
 - Added missing `?Sized` bounds in `PartialEq` implementations 
+- Make `PartialEq` implementation for `DequeInner` and `HistoryBufInner` generic over the storage of the RHS
 
 ## [v0.9.2] 2025-11-12
 

src/deque.rs

@@ -1164,8 +1164,12 @@ where
     }
 }
 
-impl<T: PartialEq, S: VecStorage<T> + ?Sized> PartialEq for DequeInner<T, S> {
-    fn eq(&self, other: &Self) -> bool {
+impl<T: PartialEq, S1, S2> PartialEq<DequeInner<T, S2>> for DequeInner<T, S1>
+where
+    S1: VecStorage<T> + ?Sized,
+    S2: VecStorage<T> + ?Sized,
+{
+    fn eq(&self, other: &DequeInner<T, S2>) -> bool {
         if self.storage_len() != other.storage_len() {
             return false;
         }

src/history_buf.rs

@@ -610,11 +610,13 @@ impl<T, const N: usize> Default for HistoryBuf<T, N> {
     }
 }
 
-impl<T, S: HistoryBufStorage<T> + ?Sized> PartialEq for HistoryBufInner<T, S>
+impl<T, S1, S2> PartialEq<HistoryBufInner<T, S2>> for HistoryBufInner<T, S1>
 where
     T: PartialEq,
+    S1: HistoryBufStorage<T> + ?Sized,
+    S2: HistoryBufStorage<T> + ?Sized,
 {
-    fn eq(&self, other: &Self) -> bool {
+    fn eq(&self, other: &HistoryBufInner<T, S2>) -> bool {
         self.oldest_ordered().eq(other.oldest_ordered())
     }
 }