Closes https://github.com/Lokathor/tinyvec/issues/48

src/arrayvec.rs

@@ -808,6 +808,7 @@ impl<'p, A: Array> Iterator for ArrayVecDrain<'p, A> {
     }
   }
 }
+impl<'p, A: Array> FusedIterator for ArrayVecDrain<'p, A> { }
 impl<'p, A: Array> Drop for ArrayVecDrain<'p, A> {
   #[inline]
   fn drop(&mut self) {
@@ -901,7 +902,7 @@ impl<A: Array> ArrayVecIterator<A> {
     &self.data.as_slice()[self.base..self.len]
   }
 }
-
+impl<A: Array> FusedIterator for ArrayVecIterator<A> { }
 impl<A: Array> Iterator for ArrayVecIterator<A> {
   type Item = A::Item;
   #[inline]

src/lib.rs

@@ -68,7 +68,7 @@ use core::{
     UpperExp, UpperHex,
   },
   hash::{Hash, Hasher},
-  iter::{Extend, FromIterator, IntoIterator, Iterator},
+  iter::{Extend, FromIterator, FusedIterator, IntoIterator, Iterator},
   mem::{needs_drop, replace},
   ops::{Deref, DerefMut, Index, IndexMut, RangeBounds},
   slice::SliceIndex,

src/tinyvec.rs

@@ -639,6 +639,7 @@ pub struct TinyVecDrain<'p, A: Array> {
   target_index: usize,
   target_count: usize,
 }
+impl<'p, A: Array> FusedIterator for TinyVecDrain<'p, A> { }
 impl<'p, A: Array> Iterator for TinyVecDrain<'p, A> {
   type Item = A::Item;
   #[inline]
@@ -770,7 +771,7 @@ impl<A: Array> TinyVecIterator<A> {
     }
   }
 }
-
+impl<'p, A: Array> FusedIterator for TinyVecIterator<'p, A> { }
 impl<A: Array> Iterator for TinyVecIterator<A> {
   type Item = A::Item;
   #[inline]