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Fix unused_must_use warning for Box::from_raw #104024

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Dec 28, 2022
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Fix unused_must_use warning for Box::from_raw #104024

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2 changes: 1 addition & 1 deletion library/alloc/src/boxed.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -952,7 +952,7 @@ impl<T: ?Sized> Box<T> {
/// [`Layout`]: crate::Layout
#[stable(feature = "box_raw", since = "1.4.0")]
#[inline]
#[must_use = "call `drop(from_raw(ptr))` if you intend to drop the `Box`"]
#[must_use = "call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`"]
pub unsafe fn from_raw(raw: *mut T) -> Self {
unsafe { Self::from_raw_in(raw, Global) }
}
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2 changes: 1 addition & 1 deletion src/test/ui/lint/unused/must-use-box-from-raw.stderr
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Expand Up @@ -4,7 +4,7 @@ warning: unused return value of `Box::<T>::from_raw` that must be used
LL | Box::from_raw(ptr);
| ^^^^^^^^^^^^^^^^^^^
|
= note: call `drop(from_raw(ptr))` if you intend to drop the `Box`
= note: call `drop(Box::from_raw(ptr))` if you intend to drop the `Box`
note: the lint level is defined here
--> $DIR/must-use-box-from-raw.rs:5:9
|
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