Function std::mem::transmute_copy
[−]
[src]
pub unsafe fn transmute_copy<T, U>(src: &T) -> U
Interprets src
as &U
, and then reads src
without moving the contained
value.
This function will unsafely assume the pointer src
is valid for
sizeof(U)
bytes by transmuting &T
to &U
and then reading the &U
. It
will also unsafely create a copy of the contained value instead of moving
out of src
.
It is not a compile-time error if T
and U
have different sizes, but it
is highly encouraged to only invoke this function where T
and U
have the
same size. This function triggers undefined behavior if U
is larger than
T
.
Examples
use std::mem; let one = unsafe { mem::transmute_copy(&1) }; assert_eq!(1, one);