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Diffstat (limited to '')
| -rw-r--r-- | library/core/src/ptr/const_ptr.rs | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/library/core/src/ptr/const_ptr.rs b/library/core/src/ptr/const_ptr.rs index 43e883b8b..5a083227b 100644 --- a/library/core/src/ptr/const_ptr.rs +++ b/library/core/src/ptr/const_ptr.rs @@ -568,7 +568,6 @@ impl<T: ?Sized> *const T { /// /// For non-`Sized` pointees this operation changes only the data pointer, /// leaving the metadata untouched. - #[cfg(not(bootstrap))] #[unstable(feature = "ptr_mask", issue = "98290")] #[must_use = "returns a new pointer rather than modifying its argument"] #[inline(always)] @@ -695,7 +694,7 @@ impl<T: ?Sized> *const T { /// units of T: the distance in bytes is divided by `mem::size_of::<T>()`. /// /// This computes the same value that [`offset_from`](#method.offset_from) - /// would compute, but with the added precondition that that the offset is + /// would compute, but with the added precondition that the offset is /// guaranteed to be non-negative. This method is equivalent to /// `usize::from(self.offset_from(origin)).unwrap_unchecked()`, /// but it provides slightly more information to the optimizer, which can @@ -762,7 +761,10 @@ impl<T: ?Sized> *const T { // SAFETY: The comparison has no side-effects, and the intrinsic // does this check internally in the CTFE implementation. unsafe { - assert_unsafe_precondition!([T](this: *const T, origin: *const T) => this >= origin) + assert_unsafe_precondition!( + "ptr::sub_ptr requires `this >= origin`", + [T](this: *const T, origin: *const T) => this >= origin + ) }; let pointee_size = mem::size_of::<T>(); @@ -803,7 +805,7 @@ impl<T: ?Sized> *const T { /// Returns whether two pointers are guaranteed to be inequal. /// - /// At runtime this function behaves like `Some(self == other)`. + /// At runtime this function behaves like `Some(self != other)`. /// However, in some contexts (e.g., compile-time evaluation), /// it is not always possible to determine inequality of two pointers, so this function may /// spuriously return `None` for pointers that later actually turn out to have its inequality known. |