X-Git-Url: https://git.ralfj.de/rust-101.git/blobdiff_plain/430c62a4f32989f1bf27967f70bbbd49f9d790fa..3449141636aeba89b2b768c8362a15fdd76c0a94:/src/part16.rs?ds=sidebyside diff --git a/src/part16.rs b/src/part16.rs index 3b0a1d0..90b687b 100644 --- a/src/part16.rs +++ b/src/part16.rs @@ -55,7 +55,7 @@ pub struct LinkedList { //@ Clearly, that's an unsafe operation and must only be used with great care - or even better, not at all. Seriously. //@ If at all possible, you should never use `transmute`.
//@ We are making the assumption here that a `Box` and a raw pointer have the same representation in memory. In the future, -//@ Rust will [provide](http://doc.rust-lang.org/beta/alloc/boxed/struct.Box.html#method.from_raw) such [operations](http://doc.rust-lang.org/beta/alloc/boxed/struct.Box.html#method.into_raw) in the standard library, but the exact API is still being fleshed out. +//@ Rust will [provide](https://doc.rust-lang.org/beta/alloc/boxed/struct.Box.html#method.from_raw) such [operations](https://doc.rust-lang.org/beta/alloc/boxed/struct.Box.html#method.into_raw) in the standard library, but the exact API is still being fleshed out. //@ We declare `raw_into_box` to be an `unsafe` function, telling Rust that calling this function is not generally safe. //@ This grants us the unsafe powers for the body of the function: We can dereference raw pointers, and - most importantly - we @@ -84,7 +84,7 @@ impl LinkedList { //@ Calling `box_into_raw` gives up ownership of the box, which is crucial: We don't want the memory that it points to to be deallocated! let new = Box::new( Node { data: t, next: ptr::null_mut(), prev: self.last } ); let new = box_into_raw(new); - // Update other points to this node. + // Update other pointers to this node. if self.last.is_null() { debug_assert!(self.first.is_null()); // The list is currently empty, so we have to update the head pointer. @@ -106,7 +106,7 @@ impl LinkedList { // Next, we are going to provide an iterator. //@ This function just creates an instance of `IterMut`, the iterator type which does the actual work. - pub fn iter_mut(&self) -> IterMut { + pub fn iter_mut(&mut self) -> IterMut { IterMut { next: self.first, _marker: PhantomData } } } @@ -173,7 +173,7 @@ impl<'a, T> Iterator for IterMut<'a, T> { //@ of `LinkedList`. impl Drop for LinkedList { // The destructor itself is a method which takes `self` in mutably borrowed form. It cannot own `self`, because then - // the destructor of `self` would be called at the end pf the function, resulting in endless recursion... + // the destructor of `self` would be called at the end of the function, resulting in endless recursion... fn drop(&mut self) { let mut cur_ptr = self.first; while !cur_ptr.is_null() { @@ -197,4 +197,4 @@ impl Drop for LinkedList { //@ extensions here and there. The [index](main.html) contains some more links to additional resources you may find useful. //@ With that, there's only one thing left to say: Happy Rust Hacking! -//@ [index](main.html) | [previous](part15.html) | next +//@ [index](main.html) | [previous](part15.html) | [raw source](https://www.ralfj.de/git/rust-101.git/blob_plain/HEAD:/workspace/src/part16.rs) | next