impl<T> *const T, impl<T> *mut T

src/libcore/prelude.rs

@@ -42,6 +42,7 @@ pub use iter::{Extend, IteratorExt};
 pub use iter::{Iterator, DoubleEndedIterator};
 pub use iter::{ExactSizeIterator};
 pub use option::Option::{self, Some, None};
+#[cfg(stage0)]
 pub use ptr::{PtrExt, MutPtrExt};
 pub use result::Result::{self, Ok, Err};
 pub use slice::{AsSlice, SliceExt};