Add a debug_assert in NonZeroUsize::new

servo · Jun 29, 2017 · ee0c6e7 · ee0c6e7
1 parent a880396
commit ee0c6e7
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/util.rs b/src/util.rs
@@ -46,6 +46,7 @@ pub struct NonZeroUsize(&'static u8);
 impl NonZeroUsize {
     #[inline]
     pub unsafe fn new(value: usize) -> Self {
+        debug_assert!(value != 0);
         NonZeroUsize(&*(value as *const u8))
     }