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Make the Atomic types repr(C) to ensure newtype

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This commit is contained in:
Simonas Kazlauskas 2018-10-27 13:46:33 +03:00
parent 01674fbe06
commit 5e50acf443
1 changed files with 5 additions and 5 deletions
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10
src/libcore/sync/atomic.rs
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@ -124,7 +124,7 @@ pub fn spin_loop_hint() {
/// [`bool`]: ../../../std/primitive.bool.html
#[cfg(target_has_atomic = "8")]
#[stable(feature = "rust1", since = "1.0.0")]
#[repr(align(1))]
#[repr(C, align(1))]
pub struct AtomicBool {
v: UnsafeCell<u8>,
}
@ -148,9 +148,9 @@ unsafe impl Sync for AtomicBool {}
/// This type has the same in-memory representation as a `*mut T`.
#[cfg(target_has_atomic = "ptr")]
#[stable(feature = "rust1", since = "1.0.0")]
#[cfg_attr(target_pointer_width = "16", repr(align(2)))]
#[cfg_attr(target_pointer_width = "32", repr(align(4)))]
#[cfg_attr(target_pointer_width = "64", repr(align(8)))]
#[cfg_attr(target_pointer_width = "16", repr(C, align(2)))]
#[cfg_attr(target_pointer_width = "32", repr(C, align(4)))]
#[cfg_attr(target_pointer_width = "64", repr(C, align(8)))]
pub struct AtomicPtr<T> {
p: UnsafeCell<*mut T>,
}
@ -1106,7 +1106,7 @@ macro_rules! atomic_int {
///
/// [module-level documentation]: index.html
#[$stable]
#[repr(align($align))]
#[repr(C, align($align))]
pub struct $atomic_type {
v: UnsafeCell<$int_type>,
}