bjoernager/rust
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Make align_of behave like min_align_of.

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This removes a footgun, since it is a reasonable assumption to make that
pointers to `T` will be aligned to `align_of::<T>()`. This also matches
the behaviour of C/C++. `min_align_of` is now deprecated.

Closes #21611.
This commit is contained in:
Huon Wilson 2015-05-20 19:18:03 +10:00
parent 2ad26e850e
commit 225b116829
8 changed files with 47 additions and 53 deletions
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6
src/liballoc/arc.rs
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@ -77,7 +77,7 @@ use core::atomic;
use core::atomic::Ordering::{Relaxed, Release, Acquire, SeqCst};
use core::fmt;
use core::cmp::Ordering;
use core::mem::{min_align_of_val, size_of_val};
use core::mem::{align_of_val, size_of_val};
use core::intrinsics::drop_in_place;
use core::mem;
use core::nonzero::NonZero;
@ -241,7 +241,7 @@ impl<T: ?Sized> Arc<T> {
if self.inner().weak.fetch_sub(1, Release) == 1 {
atomic::fence(Acquire);
deallocate(ptr as *mut u8, size_of_val(&*ptr), min_align_of_val(&*ptr))
deallocate(ptr as *mut u8, size_of_val(&*ptr), align_of_val(&*ptr))
}
}
}
@ -565,7 +565,7 @@ impl<T: ?Sized> Drop for Weak<T> {
atomic::fence(Acquire);
unsafe { deallocate(ptr as *mut u8,
size_of_val(&*ptr),
min_align_of_val(&*ptr)) }
align_of_val(&*ptr)) }
}
}
}