Function bytemuck::allocation::try_cast_arc
source · pub fn try_cast_arc<A: NoUninit + AnyBitPattern, B: NoUninit + AnyBitPattern>(
input: Arc<A>
) -> Result<Arc<B>, (PodCastError, Arc<A>)>
Expand description
Attempts to cast the content type of a Arc
.
On failure you get back an error along with the starting Arc
.
The bounds on this function are the same as cast_mut
, because a user
could call Rc::get_unchecked_mut
on the output, which could be observable
in the input.
§Failure
- The start and end content type of the
Arc
must have the exact same alignment. - The start and end size of the
Arc
must have the exact same size.