use mem::zeroed to make up ZST values

rust-lang · Sep 16, 2018 · 357c5da · 357c5da
1 parent 61f0a2b
commit 357c5da
Showing 1 changed file with 4 additions and 4 deletions.
diff --git a/src/liballoc/vec.rs b/src/liballoc/vec.rs
@@ -2410,8 +2410,8 @@ impl<T> Iterator for IntoIter<T> {
  // same pointer.
  self.ptr = arith_offset(self.ptr as *const i8, 1) as *mut T;
 
- // Read from a properly aligned pointer to make up a value of this ZST.
- Some(ptr::read(NonNull::dangling().as_ptr()))
+ // Make up a value of this ZST.
+ Some(mem::zeroed())
  } else {
  let old = self.ptr;
  self.ptr = self.ptr.offset(1);
@@ -2450,8 +2450,8 @@ impl<T> DoubleEndedIterator for IntoIter<T> {
  // See above for why 'ptr.offset' isn't used
  self.end = arith_offset(self.end as *const i8, -1) as *mut T;
 
- // Read from a properly aligned pointer to make up a value of this ZST.
- Some(ptr::read(NonNull::dangling().as_ptr()))
+ // Make up a value of this ZST.
+ Some(mem::zeroed())
  } else {
  self.end = self.end.offset(-1);