diff options
| -rw-r--r-- | library/core/src/ptr/mod.rs | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/library/core/src/ptr/mod.rs b/library/core/src/ptr/mod.rs index 2c324b15a1a..214d7c8bc15 100644 --- a/library/core/src/ptr/mod.rs +++ b/library/core/src/ptr/mod.rs @@ -342,10 +342,12 @@ pub const fn slice_from_raw_parts_mut<T>(data: *mut T, len: usize) -> *mut [T] { /// ``` /// use std::ptr; /// -/// let mut array = [0, 1, 2, 3]; +/// let mut array: [i32; 4] = [0, 1, 2, 3]; +/// +/// let array_ptr: *mut i32 = array.as_mut_ptr(); /// -/// let x = array[0..].as_mut_ptr() as *mut [u32; 3]; // this is `array[0..3]` -/// let y = array[1..].as_mut_ptr() as *mut [u32; 3]; // this is `array[1..4]` +/// let x = array_ptr as *mut [i32; 3]; // this is `array[0..3]` +/// let y = unsafe { array_ptr.add(1) } as *mut [i32; 3]; // this is `array[1..4]` /// /// unsafe { /// ptr::swap(x, y); |