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avoid using unstable ptr::invalid_mut #481

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Merged
merged 1 commit into from
Nov 15, 2023
Merged

avoid using unstable ptr::invalid_mut #481

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10 changes: 4 additions & 6 deletions src/raw/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -57,14 +57,12 @@ use core::convert::identity as unlikely;
#[cfg(feature = "nightly")]
use core::intrinsics::{likely, unlikely};

// Use strict provenance functions if available.
#[cfg(feature = "nightly")]
use core::ptr::invalid_mut;
// Implement it with a cast otherwise.
#[cfg(not(feature = "nightly"))]
// FIXME: use strict provenance functions once they are stable.
// Implement it with a transmute for now.
#[inline(always)]
#[allow(clippy::useless_transmute)] // clippy is wrong, cast and transmute are different here
fn invalid_mut<T>(addr: usize) -> *mut T {
addr as *mut T
unsafe { core::mem::transmute(addr) }
}

#[inline]
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