rust: mem: add `transmute` with deferred size check

Implement a `transmute/safe_transmute` that checks size at
monomorphization time instead of type-checking time. This allows more cases
where we know that the size matches but this is not generically checkable.

The signature is equivalent to the unstable `transmute_neo` function in the
standard library. A safe variant is provided to use with types implementing
`FromBytes` and `IntoBytes`.

Existing users of `transmute_copy` to bypass size checks are converted.

Signed-off-by: Gary Guo <gary@garyguo.net>
Reviewed-by: Alexandre Courbot <acourbot@nvidia.com>
Tested-by: Alexandre Courbot <acourbot@nvidia.com>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://patch.msgid.link/20260901-typed_register-v4-2-5552b1d59525@garyguo.net
[ Fix doc heading to use plural "Examples", add missing closing code
  block delimiter and fix a few other nits. - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>

0 files changed, 0 insertions, 0 deletions