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Better document Box and alloc::alloc::box_free connection #90723

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Merged
bors merged 1 commit into from
Nov 9, 2021
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Better document Box and alloc::alloc::box_free connection #90723

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3 changes: 3 additions & 0 deletions library/alloc/src/boxed.rs
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Expand Up @@ -169,6 +169,9 @@ use crate::vec::Vec;
#[lang = "owned_box"]
#[fundamental]
#[stable(feature = "rust1", since = "1.0.0")]
// The declaration of the `Box` struct must be kept in sync with the
// `alloc::alloc::box_free` function or ICEs will happen. See the comment
// on `box_free` for more details.
pub struct Box<
T: ?Sized,
#[unstable(feature = "allocator_api", issue = "32838")] A: Allocator = Global,
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