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Rollup merge of #132929 - cuviper:check-alloc_zeroed, r=tgross35

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Check for null in the `alloc_zeroed` example

We should demonstrate good behavior, just like #99198 did for `alloc`.
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Matthias Krüger 2024-11-12 06:27:20 +01:00 committed by GitHub
commit 119b939c18
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library/alloc/src/alloc.rs
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@ -155,11 +155,14 @@ pub unsafe fn realloc(ptr: *mut u8, layout: Layout, new_size: usize) -> *mut u8
/// # Examples
///
/// ```
/// use std::alloc::{alloc_zeroed, dealloc, Layout};
/// use std::alloc::{alloc_zeroed, dealloc, handle_alloc_error, Layout};
///
/// unsafe {
/// let layout = Layout::new::<u16>();
/// let ptr = alloc_zeroed(layout);
/// if ptr.is_null() {
/// handle_alloc_error(layout);
/// }
///
/// assert_eq!(*(ptr as *mut u16), 0);
///