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fix: typo (#1040)

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Kalbiq
2021-08-04 13:00:31 +02:00
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blog/content/edition-2/posts/11-allocator-designs/index.md
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@@ -961,7 +961,7 @@ impl FixedSizeBlockAllocator {
}
```
The `new` function just initializes the `list_heads` array with empty nodes and creates an [`empty`] linked list allocator as `fallback_allocator`. The `EMPTY` constant is needed because to tell the Rust compiler that we want to initialize the array with a constant value. Initializing the array directly as `[None; BLOCK_SIZES.len()]` does not work because then the compiler requires that `Option<&'static mut ListNode>` implements the `Copy` trait, which is does not. This is a current limitation of the Rust compiler, which might go away in the future.
The `new` function just initializes the `list_heads` array with empty nodes and creates an [`empty`] linked list allocator as `fallback_allocator`. The `EMPTY` constant is needed because to tell the Rust compiler that we want to initialize the array with a constant value. Initializing the array directly as `[None; BLOCK_SIZES.len()]` does not work because then the compiler requires that `Option<&'static mut ListNode>` implements the `Copy` trait, which it does not. This is a current limitation of the Rust compiler, which might go away in the future.
[`empty`]: https://docs.rs/linked_list_allocator/0.9.0/linked_list_allocator/struct.Heap.html#method.empty