fix(sharedptr): fix type of Deref

src/sharedptr.rs

@@ -24,14 +24,12 @@ impl<const N: usize> SharedPtr<'_, N> {
     pub fn get_offset(&self) -> usize {
         let allocator = ALLOCATOR.lock().unwrap();
 
-        unsafe {
+        unsafe { allocator.get_offset(self.as_ptr()) }
-            allocator.get_offset(self.as_ptr())
-        }
     }
 }
 
 impl<'a, const N: usize> Deref for SharedPtr<'a, N> {
-    type Target = &'a mut [u8; N];
+    type Target = [u8; N];
 
     fn deref(&self) -> &Self::Target {
         &self.0
@@ -65,4 +63,12 @@ mod tests {
         assert_eq!(x[0], 1);
         drop(x);
     }
+
+    #[test]
+    fn slice() {
+        let mut x = SharedPtr::<10>::new().unwrap();
+        x[0] = 1;
+        x[1] = 2;
+        assert_eq!(x[0..=1], [1, 2]);
+    }
 }