@@ -560,22 +560,20 @@ impl<T> Vec<T> {
560560/// Using memory that was allocated elsewhere:
561561///
562562/// ```rust
563- /// #![feature(allocator_api)]
564- ///
565- /// use std::alloc::{AllocError, Allocator, Global, Layout};
563+ /// use std::alloc::{alloc, Layout};
566564///
567565/// fn main() {
568566/// let layout = Layout::array::<u32>(16).expect("overflow cannot happen");
569567///
570568/// let vec = unsafe {
571- /// let mem = match Global.allocate (layout) {
572- /// Ok( mem) => mem.cast::<u32>().as_ptr(),
573- /// Err(AllocError) => return,
574- /// };
569+ /// let mem = alloc (layout).cast::<u32>();
570+ /// if mem.is_null() {
571+ /// return;
572+ /// }
575573///
576574/// mem.write(1_000_000);
577575///
578- /// Vec::from_raw_parts_in (mem, 1, 16, Global )
576+ /// Vec::from_raw_parts (mem, 1, 16)
579577/// };
580578///
581579/// assert_eq!(vec, &[1_000_000]);
@@ -758,19 +756,22 @@ impl<T, A: Allocator> Vec<T, A> {
758756/// Using memory that was allocated elsewhere:
759757///
760758/// ```rust
761- /// use std::alloc::{alloc, Layout};
759+ /// #![feature(allocator_api)]
760+ ///
761+ /// use std::alloc::{AllocError, Allocator, Global, Layout};
762762///
763763/// fn main() {
764764/// let layout = Layout::array::<u32>(16).expect("overflow cannot happen");
765+ ///
765766/// let vec = unsafe {
766- /// let mem = alloc (layout).cast::<u32>();
767- /// if mem.is_null() {
768- /// return;
769- /// }
767+ /// let mem = match Global.allocate (layout) {
768+ /// Ok( mem) => mem.cast::<u32>().as_ptr(),
769+ /// Err(AllocError) => return,
770+ /// };
770771///
771772/// mem.write(1_000_000);
772773///
773- /// Vec::from_raw_parts (mem, 1, 16)
774+ /// Vec::from_raw_parts_in (mem, 1, 16, Global )
774775/// };
775776///
776777/// assert_eq!(vec, &[1_000_000]);
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