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Adding Features Rc::clone_raw() and Arc::clone_raw() #79952

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Adding Features Rc::clone_raw() and Arc::clone_raw() #79952

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ddb35b7
Update sync.rs
HTGAzureX1212 Dec 12, 2020
e0857bf
Update rc.rs
HTGAzureX1212 Dec 12, 2020
33cc1ce
Update sync.rs
HTGAzureX1212 Dec 12, 2020
4ac1f00
Update sync.rs
HTGAzureX1212 Dec 12, 2020
304662a
Update rc.rs
HTGAzureX1212 Dec 12, 2020
b229c45
Update rc.rs
HTGAzureX1212 Dec 12, 2020
6a7a133
Update sync.rs
HTGAzureX1212 Dec 12, 2020
72c6685
Update sync.rs
HTGAzureX1212 Dec 12, 2020
934c858
Update rc.rs
HTGAzureX1212 Dec 12, 2020
9d7eae2
Update rc.rs
HTGAzureX1212 Dec 13, 2020
dc11b87
Update sync.rs
HTGAzureX1212 Dec 13, 2020
069b5d1
Update sync.rs
HTGAzureX1212 Dec 14, 2020
e7907ff
Update rc.rs
HTGAzureX1212 Dec 14, 2020
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11 changes: 11 additions & 0 deletions library/alloc/src/rc.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -742,6 +742,17 @@ impl<T: ?Sized> Rc<T> {

unsafe { Self::from_ptr(rc_ptr) }
}

/// Obtains a new reference two a raw [`Rc`] pointer, without taking ownership.
pub unsafe fn clone_raw(ptr: *const T) -> Self {
let result = unsafe {
Rc::from_raw(ptr)
};

std::mem::forget(result.clone())

result
}

/// Creates a new [`Weak`] pointer to this allocation.
///
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